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• Saving Interface Builder Changes when building in Xcode

  - by Tony Eichelberger

  I know many of you have experienced the same the scenario, where you are banging your head against the wall wondering what is wrong with your app only to find that you have forgotten to save your Interface Builder changes. Well, this never happens to me, because for some reason Xcode will prompt me to save any changes in Interface Builder whenever I build. A coworker and I are trying to figure out how to change this on his machine, with no success. I must have done something in the very early stages of my iphone development life to configure this. Does anyone know how to link IB with Xcode so that it will prompt to save changes to IB files during a build?

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• Store in DB or not to store ?

  - by eugeneK

  There are few string lists in my web application that i don't know where to store in DB or just class. ie. I have 7 major browsers with which users enter the site. I want to save these stats thus i need to create browser column in UserLogin database. I don't want to waste space and resources so i can save full browser name in each login row. So i either need to save browserID field and hook it up with Browsers table which will store names following db normalization rules or to have sort of Dataholder abstract class which has a list of browsers from which i can retrieve browser name by it's ID... The question what should i do ? These few data lists i have contain no more than 200 items each so i think it makes sense to have them as abstract class but again i don't know whether MS-SQL will handle multiple joins so well. Think of idea when i have user with country,ip,language,browser and few more stats .. thanks

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• SQL Query Not Functioning - No Error Message

  - by gamerzfuse

  // Write the data to the database $query = "INSERT INTO staff (name, lastname, username, password, position, department, birthmonth, birthday, birthyear, location, phone, email, street, city, state, country, zip, tags, photo) VALUES ('$name', '$lastname', '$username', '$password', '$position', '$department', '$birthmonth', '$birthday', '$birthyear', '$location', '$phone', '$email', '$street', '$city', '$state', '$country', '$zip', '$tags', '$photo')"; mysql_query($query); var_dump($query); echo '<p>' . $name . ' has been added to the Employee Directory.</p>'; if (!$query) { die('Invalid query: ' . mysql_error()); } Can someone tell me why the above code produced: string(332) "INSERT INTO staff (name, lastname, username, password, position, department, birthmonth, birthday, birthyear, location, phone, email, street, city, state, country, zip, tags, photo) VALUES ('Craig', 'Hooghiem', 'sdf', 'sdf', 'sdf', 'sdf', '01', '01', 'sdf', 'sdf', '', 'sdf', 'sdf', 'sd', 'sdf', 'sdf', 'sd', 'sdg', 'leftround.gif')" Craig has been added to the Employee Directory. But does not actually add anything into the database table "staff" ? I must be missing something obvious here.

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• 'NoneType' object has no attribute 'day'

  - by Asinox

  Hi guy, i dont know where is my error, but Django 1.2.1 is give this error: 'NoneType' object has no attribute 'day' when i try to save form from the Administrator Area models.py from django.db import models from django.contrib.auth.models import User class Editorial(models.Model): titulo = models.CharField(max_length=250,help_text='Titulo del editorial') editorial = models.TextField(help_text='Editorial') slug = models.SlugField(unique_for_date='pub_date') autor = models.ForeignKey(User) pub_date = models.DateTimeField(auto_now_add=True) activa = models.BooleanField(verbose_name="Activa") enable_comments = models.BooleanField(verbose_name="Aceptar Comentarios",default=False) editorial_html = models.TextField(editable=False,blank=True) def __unicode__(self): return unicode(self.titulo) def get_absolute_url(self): return "/editorial/%s/%s/" % (self.pub_date.strftime("%Y/%b/%d").lower(), self.slug) class Meta: ordering=['-pub_date'] verbose_name_plural ='Editoriales' def save(self,force_insert=False, force_update=False): from markdown import markdown if self.editorial: self.editorial_html = markdown(self.editorial) super(Editorial,self).save(force_insert,force_update) i dont know why this error, thanks guys sorry with my English

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• Entity framework and many to many queries unusable?

  - by John Landheer

  I'm trying EF out and I do a lot of filtering based on many to many relationships. For instance I have persons, locations and a personlocation table to link the two. I also have a role and personrole table. EDIT: Tables: Person (personid, name) Personlocation (personid, locationid) Location (locationid, description) Personrole (personid, roleid) Role (roleid, description) EF will give me persons, roles and location entities. EDIT: Since EF will NOT generate the personlocation and personrole entity types, they cannot be used in the query. How do I create a query to give me all the persons of a given location with a given role? In SQL the query would be select p.* from persons as p join personlocations as pl on p.personid=pl.personid join locations as l on pl.locationid=l.locationid join personroles as pr on p.personid=pr.personid join roles as r on pr.roleid=r.roleid where r.description='Student' and l.description='Amsterdam' I've looked, but I can't seem to find a simple solution.

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• Page auto reload with parameters

  - by Mithil Deshmukh

  I am trying to autoreload my page after every 20 seconds. I am using JavaScript for this instead of the <meta. I have <body onload="SetTimer()" and here is my JavaScript function function SetTimer(){ setTimeout('window.location.replace(window.location.pathname)', 20000) } Now my problem is I also pass a parameter within the querystring when this page is loaded first. But when the page relaods again (window.location.pathname does not include the parameter) hence I am not able to assign values to the labels on the page which is based on the parameters passed.

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• Trying to debug a symfony app showing the list of all the functions called, debug_backtrace() doesn'

  - by user248959

  Hi, im trying to debug a symfony app. I've added a debug_backtrace() calling to this function below. It outputs a list of functions called, but the save() function (that is just before the debug_backtrace() calling) is not that list.. why? any other way to debug that shows more things, in this case the save() calling ? protected function processForm(sfWebRequest $request, sfForm $form) { $form->bind($request->getParameter($form->getName())); if ($form->isValid()) { $sf_guard_user = $form->save(); var_dump(debug_backtrace()); die("fsdgsgsdf"); $this->redirect('guardausuario/edit?id='.$sf_guard_user- >getId()); } } Regards Javi

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• How to use both DataSource and DataSourceID in gridview

  - by jame

  work on C# asp.net vs05.i need to save some value and show them on the gridview.So under the button event i write a code that save value ,and show on gridview.I can save value but problem occur when show on gridview.So i use the DataSource .I also set the GridviewTask-->Choose Data Source--> DataSourceID ,because user need to edit information set on the page. after use the DataSourceID show this error message : Both DataSource and DataSourceID are defined on 'GridView2'. Remove one definition. How can i use the both in one grid view?if i can not? then how to give user this facility that they can edit information set on the grid with out use any other contorl.

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• How to modify by loading and saving the same xml file

  - by cynthia hong

  I have a problem with modifying xml file when i first load and then save it with same file path and name. Below is my code. The error is "Access to the path C:\MyApp\Web.config is denied. If i change the path of the xdoc.Save to be different from xdoc.Load, then it will be ok. What is your recommandation to solve this problem? If possible, i need to modify the existing xml file(meaning xml file for loading and saving is the same path). XmlDocument xdoc = new XmlDocument(); xdoc.Load(@"C:\\MyApp\\Web.config"); XmlNode xn = xdoc.SelectSingleNode("//configuration/MyProvider"); XmlElement el = (XmlElement)xn; el.SetAttribute("defaultProvider", "MyCustomValue"); xdoc.Save(@"C:\\MyApp\\Web.config"); Thanks in advance.

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• only update certain model attributes using Backbone.js

  - by Drew Dara-Abrams

  With Backbone, I'm trying to update and save to the server just one attribute: currentUser.save({hide_explorer_tutorial: 'true'}); but I don't want to send all the other attributes. Some of them are actually the output of methods on the server-side and so they are not actually true attributes with setter functions. Currently I'm using unset(attribute_name) to remove all the attributes that I don't want to update on the server. Problem is those attributes are then no longer available for local use. Suggestions on how to only save certain attributes to the server?

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• Where are config files for class libraries physically located?

  - by BadNinja

  My guess is that this question will fall under the category of "duh", but, nevertheless, I'm confused. When using config files in, for example, a Windows Forms Application, the config file can be found in C:\Program files\CompanyName\ProductName\Application.exe.config. However, with the class library I'm developing I do not see a "ClassLibrary.dll.config" file in the install folder after installing it (in tandem with another project) from Visual Studio. Even though I do not see the file anywhere, retrieving data from it works correctly. Plus, running the following code from a method within the class library returns the path you would expect: C:\Program files\CompanyName\ProductName\ClassLibrary.dll.config. If someone could shed some light on what I'm missing here, that would be really awesome. public static string MyMethod() { Assembly assem = Assembly.GetExecutingAssembly(); Configuration config = ConfigurationManager.OpenExeConfiguration(assem.Location); return "The assembly location was: " + assem.Location + Environment.NewLine + "The config file path was: " + config.FilePath; // Gives me "C:\Program files\CompanyName\ProductName\ClassLibrary.dll.config" }

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• fstream - correct error checking after output

  - by Truncheon

  What's the correct way to check for a general error when sending data to an fstream? I have the following code, which seems a bit overkill. int Saver::output() { save_file_handle.open(file_name.c_str()); if (save_file_handle.is_open()) { save_file_handle << save_str.c_str(); if (save_file_handle.bad()) { x_message("Error - failed to save file"); return 0; } save_file_handle.close(); if (save_file_handle.bad()) { x_message("Error - failed to save file"); return 0; } return 1; } else { x_message("Error - couldn't open save file"); return 0; } }

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• jquery repeat process once get reply from php file

  - by air

  i have one php file which process adding of record in Database fro array. for example in array i have 5 items aray an='abc','xyz','ert','wer','oiu' i want to call one php file in j query ajax method um = an.split(','); var counter = 0; if(counter < uemail.length) { $("#sending_count").html("Processing Record "+ ecounter +" of " + an.length); var data = {uid: um[counter] $.ajax({ type: "POST", url: "save.php", data: data, success: function(html){ echo "added"; counter++; } what it do, it complete all the prcess but save.php is still working what i want after one process it stop untill process of save.php complete then it wait for next 10 sec and start adding of 2nd element. Thanks

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• getting last insert id .sqlalchemy orm

  - by gummmibear

  Hi i use sqlalchemy, i need some help. import hashlib import sqlalchemy as sa from sqlalchemy import orm from allsun.model import meta t_user = sa.Table("users",meta.metadata,autoload=True) class Duplicat(Exception): pass class LoginExistsException(Exception): pass class EmailExistsException(Exception): pass class User(object): """ def __setattr__(self, key, value): if key=='password' : value=unicode(hashlib.sha512(value).hexdigset()) object.__setattr__(self,key,value) """ def loginExists(self): try: meta.Session.query(User).filter(User.login==self.login).one() except orm.exc.NoResultFound: pass else: raise LoginExistsException() def emailExists(self): try: meta.Session.query(User).filter(User.email==self.email).one() except orm.exc.NoResultFound: pass else: raise EmailExistsException() def save(self): meta.Session.begin() meta.Session.save(self) try: meta.Session.commit() except sa.exc.IntegrityError: raise Duplicat() How can i get inserted id when i call? user = User() user.login = request.params['login'] user.password = hashlib.sha512(request.params['password']).hexdigest() user.email = request.params['email'] user.save()

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• PyML 0.7.2 - How to prevent accuracy from dropping after storing/loading a classifier?

  - by Michael Aaron Safyan

  This is a followup from "Save PyML.classifiers.multi.OneAgainstRest(SVM()) object?". The solution to that question was close, but not quite right, (the SparseDataSet is broken, so attempting to save/load with that dataset container type will fail, no matter what. Also, PyML is inconsistent in terms of whether labels should be numbers or strings... it turns out that the oneAgainstRest function is actually not good enough, because the labels need to be strings and simultaneously convertible to floats, because there are places where it is assumed to be a string and elsewhere converted to float) and so after a great deal of hacking and such I was finally able to figure out a way to save and load my multi-class classifier without it blowing up with an error.... however, although it is no longer giving me an error message, it is still not quite right as the accuracy of the classifier drops significantly when it is saved and then reloaded (so I'm still missing a piece of the puzzle). I am currently using the following custom mutli-class classifier for training, saving, and loading: class SVM(object): def __init__(self,features_or_filename,labels=None,kernel=None): if isinstance(features_or_filename,str): filename=features_or_filename; if labels!=None: raise ValueError,"Labels must be None if loading from a file."; with open(os.path.join(filename,"uniquelabels.list"),"rb") as uniquelabelsfile: self.uniquelabels=sorted(list(set(pickle.load(uniquelabelsfile)))); self.labeltoindex={}; for idx,label in enumerate(self.uniquelabels): self.labeltoindex[label]=idx; self.classifiers=[]; for classidx, classname in enumerate(self.uniquelabels): self.classifiers.append(PyML.classifiers.svm.loadSVM(os.path.join(filename,str(classname)+".pyml.svm"),datasetClass = PyML.VectorDataSet)); else: features=features_or_filename; if labels==None: raise ValueError,"Labels must not be None when training."; self.uniquelabels=sorted(list(set(labels))); self.labeltoindex={}; for idx,label in enumerate(self.uniquelabels): self.labeltoindex[label]=idx; points = [[float(xij) for xij in xi] for xi in features]; self.classifiers=[PyML.SVM(kernel) for label in self.uniquelabels]; for i in xrange(len(self.uniquelabels)): currentlabel=self.uniquelabels[i]; currentlabels=['+1' if k==currentlabel else '-1' for k in labels]; currentdataset=PyML.VectorDataSet(points,L=currentlabels,positiveClass='+1'); self.classifiers[i].train(currentdataset,saveSpace=False); def accuracy(self,pts,labels): logger=logging.getLogger("ml"); correct=0; total=0; classindexes=[self.labeltoindex[label] for label in labels]; h=self.hypotheses(pts); for idx in xrange(len(pts)): if h[idx]==classindexes[idx]: logger.info("RIGHT: Actual \"%s\" == Predicted \"%s\"" %(self.uniquelabels[ classindexes[idx] ], self.uniquelabels[ h[idx] ])); correct+=1; else: logger.info("WRONG: Actual \"%s\" != Predicted \"%s\"" %(self.uniquelabels[ classindexes[idx] ], self.uniquelabels[ h[idx] ])) total+=1; return float(correct)/float(total); def prediction(self,pt): h=self.hypothesis(pt); if h!=None: return self.uniquelabels[h]; return h; def predictions(self,pts): h=self.hypotheses(self,pts); return [self.uniquelabels[x] if x!=None else None for x in h]; def hypothesis(self,pt): bestvalue=None; bestclass=None; dataset=PyML.VectorDataSet([pt]); for classidx, classifier in enumerate(self.classifiers): val=classifier.decisionFunc(dataset,0); if (bestvalue==None) or (val>bestvalue): bestvalue=val; bestclass=classidx; return bestclass; def hypotheses(self,pts): bestvalues=[None for pt in pts]; bestclasses=[None for pt in pts]; dataset=PyML.VectorDataSet(pts); for classidx, classifier in enumerate(self.classifiers): for ptidx in xrange(len(pts)): val=classifier.decisionFunc(dataset,ptidx); if (bestvalues[ptidx]==None) or (val>bestvalues[ptidx]): bestvalues[ptidx]=val; bestclasses[ptidx]=classidx; return bestclasses; def save(self,filename): if not os.path.exists(filename): os.makedirs(filename); with open(os.path.join(filename,"uniquelabels.list"),"wb") as uniquelabelsfile: pickle.dump(self.uniquelabels,uniquelabelsfile,pickle.HIGHEST_PROTOCOL); for classidx, classname in enumerate(self.uniquelabels): self.classifiers[classidx].save(os.path.join(filename,str(classname)+".pyml.svm")); I am using the latest version of PyML (0.7.2, although PyML.__version__ is 0.7.0). When I construct the classifier with a training dataset, the reported accuracy is ~0.87. When I then save it and reload it, the accuracy is less than 0.001. So, there is something here that I am clearly not persisting correctly, although what that may be is completely non-obvious to me. Would you happen to know what that is?

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• How to implement a Counter Cache in Rails?

  - by yuval

  I have a posts controller and a comments controller. Post has many comments, and comments belong to Post. The associate is set up with the counter_cache option turned on as such: #Inside post.rb has_many :comments #Inside comment.rb belongs_to :post, :counter_cache => true I have a comments_count column in my posts table that is defaulted to zero, as such: add_column :posts, :comments_count, :integer, :default => 0 In the create action of my comments controller, I have the following code: def create @posts = Post.find(params[:post_id]) @comment = @post.comments.build(params[:comment]) if @comment.save redirect_to root else render :action => 'new' end end My problem: when @comment.save is called, I get the following error: ArgumentError in CommentsController#create wrong number of arguments (2 for 0) Removing :counter_cache => true from comment.rb completely solves the problem, so I'm assuming that it is the cause of this vague error. What am I missing here? How can I save my comment and still have rails take care of my counter_cache for my post? Thanks!

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• Get CoreLocation Update before TableView population?

  - by Clemens

  hi, i have the corelocation stuff in an uitableview controller. i actually want to get a distance from two locations and print that distance in a tableview cell. the problem is, that the tableview is filled before all the corelocation stuff happens. how can i make corelocation makes all updates before the table is filled? heres my class: // // EntriesListViewController.m // OEAW_App // // Created by Clemens on 6/6/10. // Copyright 2010 MyCompanyName. All rights reserved. // import "EntriesListViewController.h" import "EntryDetailController.h" @implementation EntriesListViewController @synthesize locationManager; @synthesize delegate; NSMutableDictionary *entries; NSMutableDictionary *dictionary; CLLocation *coords; /- (id) init { self = [super init]; if (self != nil) { self.locationManager = [[[CLLocationManager alloc] init] autorelease]; self.locationManager.delegate = self; } return self; }/ (CLLocationManager *)locationManager { if (locationManager != nil) { return locationManager; } locationManager = [[CLLocationManager alloc] init]; locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters; locationManager.delegate = self; return locationManager; } (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation { //coords.longitude = newLocation.coordinate.longitude; //coords.latitude = newLocation.coordinate.latitude; coords = newLocation; NSLog(@"Location: %@", [newLocation description]); } (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error { NSLog(@"Error: %@", [error description]); } (void)viewDidLoad { //[[MyCLController alloc] init]; //[locationManager startUpdatingLocation]; [[self locationManager] startUpdatingLocation]; //---initialize the array--- //entries = [[NSMutableArray alloc] init]; //---add items--- //NSString *Path = [[NSBundle mainBundle] bundlePath]; //NSString *DataPath = [Path stringByAppendingPathComponent:@"Memorials.plist"]; dictionary = [[NSDictionary alloc] initWithContentsOfURL:[NSURL URLWithString: @"http://akm.madison.at/memorials.xml"]]; /*NSDictionary *dssItem = [dictionary objectForKey:@"1"]; NSString *text = [dssItem objectForKey:@"text"]; */ //entries = [[NSMutableDictionary alloc] init]; NSLog(@"%@", dictionary); //Path get the path to MyTestList.plist NSString *path=[[NSBundle mainBundle] pathForResource:@"Memorials" ofType:@"plist"]; //Next create the dictionary from the contents of the file. NSDictionary *dict=[NSDictionary dictionaryWithContentsOfFile:path]; //now we can use the items in the file. // self.name.text = [dict valueForKey:@"Name"] ; NSLog(@"%@",[dict valueForKey:@"Name"]); //---set the title--- self.navigationItem.title = @"Türkendenkmäler"; [super viewDidLoad]; } (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { // Return the number of sections. return 1; } (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { // Return the number of rows in the section. return [dictionary count]; } // Customize the appearance of table view cells. - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier] autorelease]; } // Configure the cell... NSArray *keys = [dictionary allKeys]; id key = [keys objectAtIndex:indexPath.row]; NSDictionary *tmp = [dictionary objectForKey:key]; NSString *name = [tmp objectForKey:@"name"]; cell.textLabel.text = name; cell.font = [UIFont fontWithName:@"Helvetica" size:12.0]; CLLocation *location = [[CLLocation alloc] initWithLatitude:[[tmp valueForKey:@"coords_x"] floatValue] longitude:[[tmp valueForKey:@"coords_y"] floatValue]]; /*CLLocation *newLoc = [[CLLocation alloc] initWithLatitude:coords.latitude longitude:coords.longitude];*/ //locationController = [[MyCLController alloc] init]; int distance = [coords distanceFromLocation:location]; NSLog(@"%@",distance); cell.detailTextLabel.text = [NSString stringWithFormat:@"%@m",distance]; //NSLog(@"%@", [getLocation newLoc]); return cell; } (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { EntryDetailController *detailViewController = [[EntryDetailController alloc] initWithNibName:@"EntryDetailController" bundle:nil]; //detailViewController.entrySelected = [dictionary objectAtIndex:indexPath.row]; NSArray *keys = [dictionary allKeys]; id key = [keys objectAtIndex:indexPath.row]; NSDictionary *tmp = [dictionary objectForKey:key]; NSString *name = [tmp objectForKey:@"name"]; detailViewController.entrySelected_name = name; NSString *location = [tmp objectForKey:@"location"]; detailViewController.entrySelected_location = location; NSString *type = [tmp objectForKey:@"type"]; detailViewController.entrySelected_type = type; NSString *slug = [tmp objectForKey:@"slug"]; detailViewController.entrySelected_slug = slug; [self.navigationController pushViewController:detailViewController animated:YES]; [detailViewController release]; } (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; } (void)dealloc { [entries release]; [super dealloc]; } @end

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• Using key().id() on GAE Datastore and reverse geocoding

  - by Ivan Slaughter

  I have 6000 data of district, subdistrict. I need to represent this on dependent dropdown. The datamodel is for example; class Location(db.Model): location_name = db.StringProperty() location_parent = db.IntegerProperty() location_parent is reference to key() or id()? Still cannot decide which one is good. When i use key() as reference then using JSON to create jquery dependent drop down. My page loading/query and rendering time the dropdown is quite slow? Can i use key().id() as drop down option value to lighten up the page load? Any better solution for this parent/child reference for the drop down? For example: for the district record/entities the location-parent is null, for sub district record location_name will contain reference to parent district record. Other issue is to reverse geocoding the location to store or display geoPoint (lat,long)? Is google MAP API always find the exact lat,long of specific region boundaries or any error checking for the result?

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• Trilateration using 3 latitude and longitude points, and 3 distances

  - by nohat

  There exists an unknown target location (latitude and longitude co-ordinates). I have 3 latitude and longitude co-ordinate pairs and for each pair a distance in kilometers to the target location. How can I calculate the co-ordinates of the target location? For example, say I have the following data points 37.418436,-121.963477 0.265710701754km 37.417243,-121.961889 0.234592423446km 37.418692,-121.960194 0.0548954278262km What I'd like is what would the guts of the function that takes that as input and returns 37.417959,-121.961954 as output look like? I understand how to calculate the distance between two points, from http://www.movable-type.co.uk/scripts/latlong.html I understand the general principle that with three circles you get exactly one point of overlap. What I'm hazy on is the math needed to calculate that point with this input.

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• Installing JavaFX 2.0 in Eclipse Juno for Mac

  - by Josh

  I'm running Mac OS X 10.6.x (Snow Leopard) right now, so I'm pretty sure that there could be some issues with supported systems, but I'm trying to install JavaFX 2.0 (or 2.1.x) in Eclipse Juno for Java EE (version 3.8). I have already installed the e(fx)clipse plugin, but I'm not sure if I'm downloading the right JavaFX .zip file from the Oracle website. I downloaded the JavaFX 2.2 beta release because it seemed to be the only release available for OS X, but I could be wrong. Once I download this archive, I'm not exactly what to do with it/where to place it so that Eclipse recognizes it as the JavaFX 2.2 SDK. I know that I have to go into preferences and set the location of the SDK file, but there doesn't seem to be any selectable .jar file or folder to set it to. Am I doing something wrong here? Any help is appreciated. Edit: I worked around the issue by setting the SDK location to the location of the downloaded JavaFX 2.2 SDK in the JavaFX section in the preferences tree.

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• How to declare more than one header on PHP

  - by Homer Simpson

  I want to send my users to different pages based on user action. So I made multiple functions at the top of the page like so: <?php function one() { header("location: pagea.php"); } function two() { header("location: pageb.php"); } function three() { header("location: pagec.php"); } ?> Of course I get an error because I am re declaring headers. At first I though it was going to be okay since I am containing them inside functions and am calling any one function at a time. But still I get the error. Is there any other way of doing this?

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• setting permissions of python module (python setup install)

  - by SetJmp

  I am configuring a distutils-based setup.py for a python module that is to be installed on a heterogeneous set of resources. Due to the heterogeneity, the location where the module is installed is not the same on each host however disutils picks the host-specific location. I find that the module is installed without o+rx permissions using disutils (in spite of setting umask ahead of running setup.py). One solution is to manually correct this problem, however I would like an automated means that works on heterogeneous install targets. For example, is there a way to extract the ending location of the installation from within setup.py? Any other suggestions? Thanks! SetJmp

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• PyML 0.7.2 - How to prevent accuracy from dropping after stroing/loading a classifier?

  - by Michael Aaron Safyan

  This is a followup from "Save PyML.classifiers.multi.OneAgainstRest(SVM()) object?". The solution to that question was close, but not quite right, (the SparseDataSet is broken, so attempting to save/load with that dataset container type will fail, no matter what. Also, PyML is inconsistent in terms of whether labels should be numbers or strings... it turns out that the oneAgainstRest function is actually not good enough, because the labels need to be strings and simultaneously convertible to floats, because there are places where it is assumed to be a string and elsewhere converted to float) and so after a great deal of hacking and such I was finally able to figure out a way to save and load my multi-class classifier without it blowing up with an error.... however, although it is no longer giving me an error message, it is still not quite right as the accuracy of the classifier drops significantly when it is saved and then reloaded (so I'm still missing a piece of the puzzle). I am currently using the following custom mutli-class classifier for training, saving, and loading: class SVM(object): def __init__(self,features_or_filename,labels=None,kernel=None): if isinstance(features_or_filename,str): filename=features_or_filename; if labels!=None: raise ValueError,"Labels must be None if loading from a file."; with open(os.path.join(filename,"uniquelabels.list"),"rb") as uniquelabelsfile: self.uniquelabels=sorted(list(set(pickle.load(uniquelabelsfile)))); self.labeltoindex={}; for idx,label in enumerate(self.uniquelabels): self.labeltoindex[label]=idx; self.classifiers=[]; for classidx, classname in enumerate(self.uniquelabels): self.classifiers.append(PyML.classifiers.svm.loadSVM(os.path.join(filename,str(classname)+".pyml.svm"),datasetClass = PyML.VectorDataSet)); else: features=features_or_filename; if labels==None: raise ValueError,"Labels must not be None when training."; self.uniquelabels=sorted(list(set(labels))); self.labeltoindex={}; for idx,label in enumerate(self.uniquelabels): self.labeltoindex[label]=idx; points = [[float(xij) for xij in xi] for xi in features]; self.classifiers=[PyML.SVM(kernel) for label in self.uniquelabels]; for i in xrange(len(self.uniquelabels)): currentlabel=self.uniquelabels[i]; currentlabels=['+1' if k==currentlabel else '-1' for k in labels]; currentdataset=PyML.VectorDataSet(points,L=currentlabels,positiveClass='+1'); self.classifiers[i].train(currentdataset,saveSpace=False); def accuracy(self,pts,labels): logger=logging.getLogger("ml"); correct=0; total=0; classindexes=[self.labeltoindex[label] for label in labels]; h=self.hypotheses(pts); for idx in xrange(len(pts)): if h[idx]==classindexes[idx]: logger.info("RIGHT: Actual \"%s\" == Predicted \"%s\"" %(self.uniquelabels[ classindexes[idx] ], self.uniquelabels[ h[idx] ])); correct+=1; else: logger.info("WRONG: Actual \"%s\" != Predicted \"%s\"" %(self.uniquelabels[ classindexes[idx] ], self.uniquelabels[ h[idx] ])) total+=1; return float(correct)/float(total); def prediction(self,pt): h=self.hypothesis(pt); if h!=None: return self.uniquelabels[h]; return h; def predictions(self,pts): h=self.hypotheses(self,pts); return [self.uniquelabels[x] if x!=None else None for x in h]; def hypothesis(self,pt): bestvalue=None; bestclass=None; dataset=PyML.VectorDataSet([pt]); for classidx, classifier in enumerate(self.classifiers): val=classifier.decisionFunc(dataset,0); if (bestvalue==None) or (val>bestvalue): bestvalue=val; bestclass=classidx; return bestclass; def hypotheses(self,pts): bestvalues=[None for pt in pts]; bestclasses=[None for pt in pts]; dataset=PyML.VectorDataSet(pts); for classidx, classifier in enumerate(self.classifiers): for ptidx in xrange(len(pts)): val=classifier.decisionFunc(dataset,ptidx); if (bestvalues[ptidx]==None) or (val>bestvalues[ptidx]): bestvalues[ptidx]=val; bestclasses[ptidx]=classidx; return bestclasses; def save(self,filename): if not os.path.exists(filename): os.makedirs(filename); with open(os.path.join(filename,"uniquelabels.list"),"wb") as uniquelabelsfile: pickle.dump(self.uniquelabels,uniquelabelsfile,pickle.HIGHEST_PROTOCOL); for classidx, classname in enumerate(self.uniquelabels): self.classifiers[classidx].save(os.path.join(filename,str(classname)+".pyml.svm")); I am using the latest version of PyML (0.7.2, although PyML.__version__ is 0.7.0). When I construct the classifier with a training dataset, the reported accuracy is ~0.87. When I then save it and reload it, the accuracy is less than 0.001. So, there is something here that I am clearly not persisting correctly, although what that may be is completely non-obvious to me. Would you happen to know what that is?

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• Grails Testing hickups

  - by egervari

  I have two testing questions. Both are probably easily answered. The first is that I wrote this unit test in Grails: void testCount() { mockDomain(UserAccount) new UserAccount(firstName: "Ken").save() new UserAccount(firstName: "Bob").save() new UserAccount(firstName: "Dave").save() assertEquals(3, UserAccount.count()) } For some reason, I get 0 returned back. Did I forget to do something? The second question is for those who use IDEA. What should I be running - IDEA's junit tests, or grails targets? I have two options. Also, why does IDEA say that my tests pass and it provides a green light even though the test above actually fails? This will really drive me nuts if I have to check the test reports in html every time I run my tests..... Help?

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• User can't login after creating them with the asp.net Create User Wizard

  - by Xaisoft

  When I create a user, they can't login until I go into the asp.net configuration and save them. I actually don't change any settings, I just press the save button and then they can login in. What I would like to do is to have the user be able to login once they are created, but I can't seem to get it to work. Here is my code for the CreatedUser method: protected void CreateUserWizard1_CreatedUser(object sender, EventArgs e) { CustomerProfile adminProfile = CustomerProfile.GetProfile(); string username = ((TextBox)CreateUserWizard1.CreateUserStep.ContentTemplateContainer.FindControl("UserName")).Text.Trim(); CustomerProfile createdUser = CustomerProfile.GetProfile(username); createdUser.CustomerID = adminProfile.CustomerID; createdUser.Save(); MembershipUser user = Membership.GetUser(username); user.IsApproved = ((CheckBox)CreateUserWizard1.CreateUserStep.ContentTemplateContainer.FindControl("chkActivateUser")).Checked; Roles.AddUserToRole(user.UserName, "nonadmin"); }

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