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  • Analyse frequencies of date ranges in Google Spreadsheet

    - by wnstnsmth
    I have a Google Spreadsheet where I would like to compute occurrences of date ranges. As you can see in my sheet, there is a column date_utc+1 which contains almost random date data. What I would like to do is put the date values into bins of 6 hours each, i.e., 12/5/2012 23:57:04 until 12/6/2012 0:03:17 would be in the first bin, 12/6/2012 11:20:53 until 12/6/2012 17:17:07 in the second bin, and so forth. Then, I would like to count the occurrence of those bins, such as bin_from bin_to freq ----------------------------------------------- 12/5/2012 23:57:04 12/6/2012 0:03:17 2 12/6/2012 11:20:53 12/6/2012 17:17:07 19 ... ... ... Hope it is clear what I mean. Partial hints are very welcome as well since I am pretty new to spreadsheeting.

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  • Accessing every child class of parent class in Java

    - by darkie15
    Hi All, I have to implement a logic whereby given a child class, I need to access its parent class and all other child class of that parent class, if any. I did not find any API in Java Reflection which allows us to access all child classes of a parent class. Is there any way to do it? Ex. class B extends class A class C extends class A Now using class B, I can find the superclass by calling getSuperClass(). But is there any way to find all the child classes once I have the parent class i.e. class B and class C?? Regards, darkie

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  • Using Lucene to Query File properties in Windows

    - by sneha
    Hi All, I am planning to use Apache lucense in one of my projects, I want to index files based on the file properties (I won’t be indexing the data) and I want lucense to query the index so that I can quickly find list of files to based on the properties . E.g: give me all the files with access time greater than 10/10/2005 and access time less than 10/04/2010 and file created by james. Can i use Lucene for these kind of projects ? or i better of using windows search (the foor print is very heavy almost 5 MB :( ) and i have to bundling this as part of my application is seems to tough. Can you please suggest is there any better alternatives here?

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  • Solr security question

    - by Camran
    I have a linux server, and I am about to upload a classifieds website to it. The website is php based. That means php code adds/removes classifieds, with the help of the users offcourse. The php-code then adds/removes a classified to a database index called Solr (like MySql). Problem is that anybody can currently access the database, but I only want the website to access the database (solr). Solr is on port 8983 as standard btw. My Q is, if I add a rule in my firewall (iptables), to only allow connections coming from the servers IP to the Solr port nr, would this solve my issue? Thanks

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  • iPhone StoreKit development: Can't create a test user?

    - by Cruinh
    I'm trying to get up to speed on how to develop an in-app store using the new 3.0 SDK... but I'm a bit stuck in that I don't seem to be able to create a test account. The iTunes Connect FAQ states "To create test users for your sandbox environment, go to the Manage Users section of iTunes Connect and select In App Purchase Test User. Your test users will not have iTunes Connect access. They will just have access to the sandbox environment." ...but when I go to that Manage Users section, there's no mention of any sort of "In App Purschase Test User" or how to make one. Did I miss doing something to enable that? There is another section of that same FAQ that seems to suggest I need to have a paid app in the store first? Is that the reason I can't even use the test environment?

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  • Convert NSData into Hex NSString

    - by Dawson
    With reference to the following question: Convert NSData into HEX NSSString I have solved the problem using the solution provided by Erik Aigner which is: NSData *data = ...; NSUInteger capacity = [data length] * 2; NSMutableString *stringBuffer = [NSMutableString stringWithCapacity:capacity]; const unsigned char *dataBuffer = [data bytes]; NSInteger i; for (i=0; i<[data length]; ++i) { [stringBuffer appendFormat:@"%02X", (NSUInteger)dataBuffer[i]]; } However, there is one small problem in that if there are extra zeros at the back, the string value would be different. For eg. if the hexa data is of a string @"3700000000000000", when converted using a scanner to integer: unsigned result = 0; NSScanner *scanner = [NSScanner scannerWithString:stringBuffer]; [scanner scanHexInt:&result]; NSLog(@"INTEGER: %u",result); The result would be 4294967295, which is incorrect. Shouldn't it be 55 as only the hexa 37 is taken? So how do I get rid of the zeros? EDIT: (In response to CRD) Hi, thanks for clarifying my doubts. So what you're doing is to actually read the 64-bit integer directly from a byte pointer right? However I have another question. How do you actually cast NSData to a byte pointer? To make it easier for you to understand, I'll explain what I did originally. Firstly, what I did was to display the data of the file which I have (data is in hexadecimal) NSData *file = [NSData dataWithContentsOfFile:@"file path here"]; NSLog(@"Patch File: %@",file); Output: Next, what I did was to read and offset the first 8 bytes of the file and convert them into a string. // 0-8 bytes [file seekToFileOffset:0]; NSData *b = [file readDataOfLength:8]; NSUInteger capacity = [b length] * 2; NSMutableString *stringBuffer = [NSMutableString stringWithCapacity:capacity]; const unsigned char *dataBuffer = [b bytes]; NSInteger i; for (i=0; i<[b length]; ++i) { [stringBuffer appendFormat:@"%02X", (NSUInteger)dataBuffer[i]]; } NSLog(@"0-8 bytes HEXADECIMAL: %@",stringBuffer); As you can see, 0x3700000000000000 is the next 8 bytes. The only changes I would have to make to access the next 8 bytes would be to change the value of SeekFileToOffset to 8, so as to access the next 8 bytes of data. All in all, the solution you gave me is useful, however it would not be practical to enter the hexadecimal values manually. If formatting the bytes as a string and then parsing them is not the way to do it, then how do I access the first 8 bytes of the data directly and cast them into a byte pointer?

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  • DAO design pattern and using it across multiple tables

    - by Casey
    I'm looking for feedback on the Data Access Object design pattern and using it when you have to access data across multiple tables. It seems like that pattern, which has a DAO for each table along with a Data Transfer Object (DTO) that represents a single row, isn't too useful for when dealing with data from multiple tables. I was thinking about creating a composite DAO and corresponding DTO that would return the result of, let's say performing a join on two tables. This way I can use SQL to grab all the data instead of first grabbing data from one using one DAO and than the second table using the second DAO, and than composing them together in Java. Is there a better solution? And no, I'm not able to move to Hibernate or another ORM tool at the moment. Just straight JDBC for this project.

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  • Property in class is IEnumerable<TDto> get TDto.A == a

    - by Miau
    So I have a class is something like this public class Order { //some other stuff ... //setting the internal _orderItems collection ... IEnumerable<OrderItems> OrderItems { get { return _orderItems; } } public class OrderItem { //other stuff public string ProductName {get; set;} } If I have a collection of orders of some sort and have access via linq to the order, something like myOrderRespository.Where(x=>x.OrderItems) Then I only have access to getEnumerator there, waht I would like it to be able to do something like myOrderRespository.Where(x=>x.OrderItems.ProductName == "Blah") Is this possible? this is a made up scenario and its pseudo code I m trying to simplify the problem so its easy to explain ( so please forgive me if there are a few errors) Cheers

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  • Nested loops break out unexpectedly

    - by Metju
    Hi guys, I'm trying to create a sudoku game, for those that do not know what it is. You have a 9x9 box that needs to be filled with numbers from 1-9, every number must be unique in its row and column, and also in the 3x3 box it is found. I ended up doing loads of looping within a 2 dimensional array. But at some point it just stops, with no exceptions whatsoever, just breaks out and nothing happens, and it's not always at the same position, but always goes past half way. I was expecting a stack overflow exception at least. Here's my code: public class Engine { public int[,] Create() { int[,] outer = new int[9, 9]; for (int i = 0; i < 9; i++) { for (int j = 0; j < 9; j++) { outer[i, j] = GetRandom(GetUsed(outer, i, j)); } } return outer; } List<int> GetUsed(int[,] arr, int x, int y) { List<int> usedNums = new List<int>(); for (int i = 0; i < 9; i++) { if (arr[x, i] != 0 && i != y) { if(!usedNums.Contains(arr[x, i])) usedNums.Add(arr[x, i]); } } for (int i = 0; i < 9; i++) { if (arr[i, y] != 0 && i != x) { if (!usedNums.Contains(arr[i, y])) usedNums.Add(arr[i, y]); } } int x2 = 9 - (x + 1); int y2 = 9 - (y + 1); if (x2 <= 3) x2 = 2; else if (x2 > 3 && x2 <= 6) x2 = 5; else x2 = 8; if (y2 <= 3) y2 = 2; else if (y2 > 3 && y2 <= 6) y2 = 5; else y2 = 8; for (int i = x2 - 2; i < x2; i++) { for (int j = y2 - 2; j < y2; j++) { if (arr[i, j] != 0 && i != x && j != y) { if (!usedNums.Contains(arr[i, j])) usedNums.Add(arr[i, j]); } } } return usedNums; } int GetRandom(List<int> numbers) { Random r; int newNum; do { r = new Random(); newNum = r.Next(1, 10); } while (numbers.Contains(newNum)); return newNum; } }

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  • Passing ASP.NET User by Dependency Injection

    - by UpTheCreek
    In my web application I have various components that need to access the currently authenticated user (HttpContext.User). There are two obvious ways a component can access this: 1) Accessing getting the User from HttpContext.Current 2) Passing the user around in constructors Is not ideal because it makes testing difficult and ties application components to web concerns, when they really shouldn't know about it. Is just messy and complicates everything. So I've been thinking about passing in the current user (or perhaps just the name/id) to any component that needs it using an IoC container (via dependency injection). Is anyone using this technique to supply the current ASP.NET user to parts of the application? Or, Does this sound like a sensible approach? I would like know how this has worked out for people. Thanks

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  • Why can't I reconnect to my Philips SHB9000 bluetooth headset?

    - by Thomas Eyde
    When I connected my Philips SHB9000 bluetooth to my Windows 7 (64 bit) for the very first time, it worked well. I had to manually change the default playback device, but otherwise it worked. Then, when I start up my computer from standby, it's nearly random when I can reconnect or not. My last option is to remove the bluetooth device and reconnect it. But now, even that doesn't work. The sad thing is, this used to work better on Windows 7 beta. Windows Update has a new driver which fails to install. Searching for this driver yields nothing. I thought all vendors had an official site for their drivers? Well, Philips seems to have none. If there is no answer to this problem, my advice is to NOT buy this headset. It's good looking, the sound is nice, but what need do we have from that if we can't use the bloody device?

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  • updating batches of data

    - by gaponte69
    I am using GridView in asp .net and editing data with edit command field property (as we know after updating the edited row, we automatically update the database), and I want to use transactions (with begin to commit statement - including rollback) to commit this update query in database, after clicking in some button (after some events for example), not automatically to insert or update the edited data from grid directly to the DB...so I want to save them somewhere temporary (even many edited rows - not just one row) and then to confirm the transaction - to update the real tables in database... Any suggestions are welcomed... I've used some good links, but very helpful, like: http://www.asp.net/learn/data-access/tutorial-63-cs.aspx http://www.asp.net/learn/data-access/tutorial-66-cs.aspx etc...

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  • PHP/Mysql issues

    - by queryne
    Php/my sql newbie question. I have a database I've imported into my local phpmyadmin. However it seems I can't access it from my a php application. The connection string seems right and when i try to authenticate user credentials to access database information, no problems. However authenticate everyone and knows when i put in fake credentials. Still it won't pull any other information from the database. For instance, once a users login they should see something like, "Hello username"... that kind of thing. At this point I see "Hello" without the username. Any ideas what i might be missing?

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  • 301 redirect, canonical question

    - by Dave
    I've designed my own 'latest news' page for my site - and I'm trying to keep the URL's clean. (eg) It should look like this : http://www.domain.com/21/this-is-a-clean-url/ When someone links to the article, they sometimes mess it up and do : http://www.domain.com/21/this-is-a-clean-url/#random-hash-tag So what I have been doing is looking for "http://www.domain.com/21" and 301 (moved permantly) redirecting to the proper url + adding a canonical meta tag for it. Is this going overboard? Should I instead be using a (302 Found) header - and just let the canonical tag tell search engines what the proper URL for the article is? What is the best way of handling this?

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  • Why is music tagging software so inconsistent?

    - by Billy ONeal
    Hello :) A few years ago I spent an insane amount of time using the excellent Tag&Rename program. However, I find that for random, inexplicable reasons, some music tools simply disregard my tags, and drop or destroy the album art, or have strange handling around some characters. For example, "AC/DC" is poorly handled by most music players when I use Tag&Rename to write the tags. Is there a piece of software that works like Tag&Rename but is more compatible, or is there a way to ensure Tag&Rename writes more compatible tags?

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  • problem with doctrine:build-schema

    - by Ying
    Hi, im using symfony with doctrine, and Im trying to generate the schema yml file from a db. I get an this error SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'group' at line 1. Failing Query: "DESCRIBE group"I have a table named group in my database, and I suspect that this is screwing it up. Its not access problems as ive checked my db previleges. Any suggestions on what I can do? I have tried the quote-identifier attribute but with no luck : ( Im also struggling to find some good doctrine documentation. i cant seem to find where a list of attributes are, say for a creating a column in the schema.yml file. I tried reaching out to symfony forums but they are not responsive! Any help would be greatly appreciated! Thanks..

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  • Are the built-in images in iPhone documented, and is there a list of their names somewhere?

    - by Alex Gosselin
    I discovered somewhat by accident that if you make a UIButton in Interface Builder and type in Plus in the image field, a + image appears for the button. A similar result comes from typing Minus. I am wondering if this is a bug, or if there is some way the poor programmers can access the built-in general GUI images from other apple apps, such as the green +, the red -, the detail disclosure chevron, the big red "Delete Contact" or similarly styled button, etc. Has anyone else encountered this, or know where to access these things in Xcode? It makes sense to me that they should be usable, cause the Apple HIG seems to be all about making things recognizable and intuitive, and using them the way other apps use them.

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  • How to disable back button in browser using javascript or any script

    - by user225269
    Im using wamp server for my php scripts. And Im having difficulties on the logout code. Every time I click on the logout link and then click on the back button on web browser it still shows the page which can only be access by the user who is logged in. I have this code at the beginning of the index.php which is called by the log out link to destroy the session: <?php session_start(); session_destroy(); ?> And I have this at the beginning of the user page: <? session_start(); if(!session_is_registered(myusername)){ header("location:login.php"); } ?> I don't know why the userpage can still be access after the user has logged out. So I'm thinking of disabling the back button when the user has logged out. Please help.

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  • How do I protect Dynamic data pages using ASP.NET Authentication?

    - by ProfK
    I have a site where most of my pages are arranged in business area folders, e.g. Activations, Outdoors, Branding. Each folder has a small web.config that protects the contents against access by people without a role for that business area. However, basic admin for most business areas is done via Dynamic Data pages. These are only basically protected by not appearing in the menu unless the user has the correct role, but they are still accessible directly via URL, because of the {table}/{Action} routing used by Dynamic Data. What can I do to protect these pages against direct access?

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  • Restful Path Parameters in Spring MVC 3

    - by MDK
    Is it possible to: set a URI template in the mvc:view-controller element of the *-servlet.xml file or in a controller method and then use/get that path parameter in a jsp? I understand that using @PathVariable in a controller method will give me access to the path parameter in that controller method. But how can I gain access to the path parameter in the jsp? For example, is it possible to do something like: *-servlet.xml file: <beans...> <mvc:view-controller path="/home" view-name="home"/> <mvc:view-controller path="/home/{error}" view-name="home"/> </beans> jsp file: <c:if test="${not empty param['error']}"> <span class="error">You have an error...</span> </c:if>

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  • Use DOS batch to move all files up 1 directory

    - by Harminoff
    I have created a batch file to be executed through the right-click menu in Win7. When I right-click on a folder, I would like the batch file to move all files (excluding folders) up 1 directory. I have this so far: PUSHHD %1 MOVE "%1\*.*" ..\ This seems to work as long as the folder I'm moving files from doesn't have any spaces. When the folder does have spaces, I get an error message: "The syntax of the command is incorrect." So my batch works on a folder titled PULLTEST but not on a folder titled PULL TEST. Again, I don't need it to move folders, just files. And I would like it to work in any directory on any drive. There will be no specific directories that I will be working in. It will be random. Below is the registry file I made if needed for reference. Windows Registry Editor Version 5.00 [HKEY_CLASSES_ROOT\Directory\shell\PullFiles] @="PullFilesUP" [HKEY_CLASSES_ROOT\Directory\shell\PullFiles\command] @="\"C:\\Program Files\\MyBatchs\\PullFiles.bat\" \"%1\""

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  • javascript and extJs - scope question

    - by ben
    Hi guys, I got a little scope related problem with some js code, maybe somebody can explain to me what I'm making wrong: I'm using extJs and got this snippet: Ext.onReady(function(){ // Form for filter selection var formFilter = new Ext.FormPanel({ // ... items: [ cbGroup = new Ext.form.ComboBox({ fieldLabel: 'Group', store: dsGroups, displayField: 'name', valueField: 'number', emptyText : '- Please choose a group -', listeners:{ 'select': function() { alert(cbGroup.selectedIndex +' '+this.selectedIndex); } } }) ] }); }); The problem: When I access the combobox over 'this' within the listener function, I get the correct result for the selectIndex property. When I access the combobox over it's var name, I allways get the result '-1'. Thank a lot for your help!

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  • accing a fortran 'module' in a 'function defined in some other file

    - by cppb
    hello, I am using fortran 90 I have defined a fortran module in fileA.f as: module getArr double precision a(100) end module getArr The same fileA.f contains a subroutine that uses this module subroutine my_sub use getArr implicit none getArr%a(1) = 10.5 end subroutine In fileB.f, I have a fortrtan function. I am trying to access the value of getArr%a(1) as: double precision function my_func(R) use getArr double precision x x = getArr%a(1) return end But I am getting errors at the compile time. It says it is unable to access the module getArr. How should I declare it?? Thanks

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