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• Does there exist a jQuery plugin or JavaScript library that allows Venn Diagram presentation?

  - by knowncitizen

  I'm writing a jQuery application to allow analysis of data with the help of visual cues. My data is retrieved via XMLHttpRequest in the form of JSON. The visual cues include histograms, spark lines, and various other graph types. The idea is that the user is able to narrow their data via these various visual views. My question is thus - aside from the Google Charts API, does there exist a JavaScript way of presenting a Venn Diagram? Requirement: no Flash. Canvas is acceptable.

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• Asyncronously receiving data in an ASP.NET MVC application

  - by Mitciv

  I'm looking for the best way to constantly check if data has been sent to our ASP.NET MVC application from a server. I would like to asynchronously check for data and update the view when data has been read. I'm currently using a TcpClient to make a connection, and making the connection in the inherited custom base controller. Currently though I have to refresh the page for the updating of the view to take place. Would there be a proper AJAX solution? or do I need to move the connection to the ActionMethod?

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• ASP.Net RADs: Dynamic Data alternatives

  - by SDReyes

  Hi Guys! We have a set of tables and views that merely store some config data for embedded devices. this schema is change-prone and do not really required lots of logic, beyond some validation rules. so we considered using a RAD tool for maintaining these CRUDS. In first stage: Dynamic Data But the community size, books absence and the last modification dates of the MSDN articles (~July 2008) makes me want to hear your experiences. (actually DynamicData comes as a part of the ASP.Net MVC2 project) What has been your experience with Dynamic Data? And... What is your favorite ASP.Net RAD alternative? Why? Thank you in advance guys! PD: Entity framework friendliness is a bonus : )

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• Extracting and Parsing data with soapUI

  - by James G

  Hi. So I am in need to learn how to use soapUI pretty quick. I'm finding it pretty tedious to start so I was hoping I might be able to get some help here. Here's what I need to do. Lets say we have Company A and Company B which is a subset of Company B. Now Company A offers a webservice accessible by Company B such that Company B can gather daily aggregated data from Company A's database. Now Company B wants to take this data and publish it on their website. What I'd like is a very basic overview of what I need to do to extract and parse the data onto a website. Just the outline of the process so I can get started. What languages should I be using at what stages and what not. Any help would be highly appreciated.

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• Malformed packet error during MySQL LOAD DATA LOCAL INFILE

  - by dnagirl

  I am trying to load a file into an MySQL(v5.1.38) innodb table using PHP's mysqli::query and a LOAD DATA LOCAL INFILE query. The query returns a 'Malformed packet' error code 2027. Any ideas what is wrong? Here is the target table: CREATE TABLE `zbroom`.`lee_datareceive` ( `a` varchar(45) NOT NULL, `b` varchar(45) NOT NULL, `c` varchar(45) NOT NULL ) ENGINE=InnoDB DEFAULT CHARSET=latin1; Here is the query: LOAD DATA LOCAL INFILE '/path/to/file.txt' INTO TABLE lee_datareceive FIELDS TERMINATED BY '\t'; Here is the file data. Values are tab separated: t1 t2 t3 a b c d e f g h i

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• Save data in bulk.

  - by Muhammad Kashif Nadeem

  I have a window having multiple tabs. Each tab having different grids. I want to save all changes on any tab on any grid in bulk. I mean I have one save button which will save all changes in any grid on any tab. I think DataTables will work fine here. Can you suggest me that it is good to use DataTables to ADD/Edit data and save data in bulk using these DataTables OR is there any better way to achieve this. My DAL is generated from LLBLGen Pro (ORM) but you are open to suggest me a solution. Thanks. Edit: I am using Telerik controls so I can get all data in DataTable like DataTable dtProducts = this.radGridView1.DataSource as DataTable;

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• WCF Paged Results & Data Export

  - by Ben

  I've walked into a project that is using a WCF service for the data tier. Currently, when data is needed for a grid, all rows are returned and the results are bound to a grid and the dataset is stuffed into a session variable for paging/sorting/rebinding. We've already hit a max message size problem, so I'm thinking it's time to convert from fetch and cache to fetch only the current page. Face value this seems easy enough, but there's a small catch. The user is allowed to export the entire result set at any point. This means that for grid viewing purposes fetching the current page is fine, but when they want to do an export, I still need to make a call for all data. This puts me back into the max message size issue. What is the recommended approach for this type of setup? We are currently using the wsHttpBinding... Thanks for any assistance.

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• Where does the ObjectDataSource cache data?

  - by Jeremy

  I'm considering using an ObjectDataSource as an intermediate between my page controls and my data access layer & object model. Traditionally I have manually created the object and populate it via a series of findcontrol statements when I need to insert/update data in the database. I'm hoping that I can use the ObjectDataSource to marshal data between my object and my controls, eliminating that manual code, as long as the ObjectDataSource doesn't come with a lot of overhead. I noticed the EnableCaching property, where does the caching occure? is it in view state?

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• Retrieving Data from SQL Server within Excel 2007

  - by Russell Giddings

  I have the following requirements I have relational content stored in a SQL Server 2005 database. I want to retrieve this data, transform it and display it in an Excel 2007 document. I would like this to be pulled from within Excel at the click of a button. As far as I can tell I have the following options... Create a view in Sql Server and reference it within a pivot table using a data connection. Create an Excel workbook using VSTO and create a web service which the workbook pulls data from Create a web service and use JScript with XMLHTTP request objects I currently only have a little experience of any of these methods (I'm very familiar with SQL Server although not pivot tables, I've created many web services although I've never used VSTO and I've used javascript extensively, but never in the context of Excel manipulation). Would you recommend one of the above approaches or is there a better way to do this?

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• Extracting dates from html meta data in FAST-ESP

  - by Neil

  During document processing I want to extract all dates from html meta data and then identify the latest date which will be used to populate a date field (dtgeneric1). <meta name="OriginalPublicationDate" content="2010/04/21 12:06:36" /> <meta name="LastModificationDate" content="2010/04/22 14:10:16" /> + other non-date meta data Inspection using spy stages shows that our pipeline already adds meta_* attributes but the meta data names will be different across documents from different sources. #### ATTRIBUTE meta_originalpublicationdate <class 'docproc.DocumentAttributes.TextChunks'>: 2010/04/21 12:06:36 #### ATTRIBUTE meta_lastmodificationdate <class 'docproc.DocumentAttributes.TextChunks'>: 2010/04/22 14:10:16 + other non-date meta attributes Ideally we would like to pass all the meta_* attributes to a Python stage and use that to work out which are dates and which is the largest but there seems to be no way of specifying "all meta attributes" as input. Has anyone done something similar and can offer any advice on the best way to do this. Thanks Neil

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• Python script to get the data from the flex application

  - by nimmyliji

  Hi, I am making a simple Python CGI script that collects data(in xml format) from a flex application and I want to insert it into the mysql database . In perl The script is looks like the following... my @samplexml=$cgi->param("Items"); my $data=$xml->XMLin("@samplexml"); foreach my $e(@{$data->{Group}}) { my $sample="Insert into details(title,Parent,Istreeitem) Values('$e->{title}','$e->{Parent}','$e->{IsTreeItem}')"; my $sam=$dbo->prepare($sample); $sam->execute(); } But I want to know how to write these codes in pytrhon script.... Any one can help me? Thanks in advance. Nimmy.

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• D3.js binding an object to data and appending for each key

  - by frshca

  I'm a D3.js newbie and I'm learning how to play around with data. Let's say I have an object with names as keys, and each key has an array of numbers like this: var userdata = { 'John' : [0, 1, 3, 9, 8, 7], 'Harry': [0, 10, 7, 1, 1, 11], 'Steve': [3, 1, 4, 4, 4, 17], 'Adam' : [4, 77, 2, 13, 11, 13] }; For each user, I would like to append an SVG object and then plot the line with the array of values for that user. So here is my assumption of how that would look based on tutorials, but I know it is incorrect. This is to show my limited knowledge and give better understanding of what I'm doing: First I should create the line var line = d3.svg.line().interpolate('basis'); Then I want to bind the data to my body and append an svg element for each key: d3.select('body') .selectAll('svg') .data(userdata) .enter() .append('svg') .append(line) .x(function(d, i) { return i; }) .y(function(d) { return d[i]; }); So am I close??

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• reuse proxy call data for extjs store

  - by user124118

  I have a xml that i need to bind to XTemplate. The XML structure is as follows John Smith John Doe Johny Byrd I am using Ext.data.Store with proxyurl tot he xml, Ext.data.XML reader to rad the xml and a listener that bind the data to the Xtemplate. The xmlreader needs a root node to be specified and i have to give root name as "Student_Name" It need to bind it to one more store for "Faculty_Name" as the root node. SO i end up calling my service to get xml twice. Is there a way to call service once to get the xml and bind it to two stores with different root nodes.

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• How to dispose data context after usage

  - by Erwin

  Hi fellow programmer I have a member class that returned IQueryable from a data context public static IQueryable<TB_Country> GetCountriesQ() { IQueryable<TB_Country> country; Bn_Master_DataDataContext db = new Bn_Master_DataDataContext(); country = db.TB_Countries .OrderBy(o => o.CountryName); return country; } As you can see I don't delete the data context after usage. Because if I delete it, the code that call this method cannot use the IQueryable (perhaps because of deferred execution?). How to force immediate execution to this method? So I can dispose the data context.. Thank you :D

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• Cakephp 1.3 controller save() does not save data

  - by Thijs

  Hi all, I want to add a new user to the database, and do so by making them fill in a form and submitting this. All seems to work fine. Just before my save() call in the controller I return all data and all necessary data is there. It is valid(ated), since no errors are returned. But then nothing happens. I'm being returned to my form without any errors being shown. This is my 'save-line': if($this->Registratie->save($this->data)) { I'm not making use of any beforeSave() methods. Using debug($this->validationErrors); shows: app/controllers/registratie_controller.php (line 45) Which is the line of code from above. I've been going through my code over and over, but I'm clueless as to what the problem could be. Any help is greatly appreciated! Thanks in advance!

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• Hierarchical data in Linq - options and performance

  - by Anthony

  I have some hierarchical data - each entry has an id and a (nullable) parent entry id. I want to retrieve all entries in the tree under a given entry. This is in a SQL Server 2005 database. I am querying it with LINQ to SQL in C# 3.5. LINQ to SQL does not support Common Table Expressions directly. My choices are to assemble the data in code with several LINQ queries, or to make a view on the database that surfaces a CTE. Which option (or another option) do you think will perform better when data volumes get large? Is SQL Server 2008's HierarchyId type supported in Linq to SQL?

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• serializing data with google charts api

  - by Patrick

  I have the following google chart code that im working with as an example: Type: Line Dimensions: 270x150 283,285,295,204,340,#41C0E4 64,120,130,170,175,180,#3962C2 1,2,5,12,28,34,#005E91 Bottom Label: test The following is the URL which generates the image below http://chart.apis.google.com/chart?chs=270x150&cht=lc&chtt=&chd=s:zz1l9,LWXffg,AABCFG&chco=41C0E4,3962C2,005E91&chxl=0:|test|&chxt=x My question is that i dont see the actual data in the url, but i see this chd=s:zz1l9,LWXffg,AABCFG That looks like serialized data, but im wondering how exactly that works, or how to encode/decode that to make the input of chart data dynamic via php.

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• How to convert hexadecimal representation of data to binary data in PHP?

  - by Marcus Adams

  I'm familiar with php's function bin2hex() for converting binary data to its hexadecimal representation. However, what is the complement function to convert the hexadecimal representation of the data back to binary data? For example: $foo = "hello"; $foo = bin2hex($foo); echo $foo; // Displays 68656c6c6f How do I turn it back to hello? $foo = "68656c6c6f"; // Now what? There is no hex2bin() function.

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• NSStream sockets missing data

  - by Chris T.

  I am trying to pull some sample data from FreeDB as a proof of concept, but I am having a tough time retrieving all of the data off the incoming stream (I am only getting the last bits for the final query listed here (if handshakeCode = 3) I think this may be something with the threading on the main runloop, but I am not sure. Odd thing is when the buffer size is larger than 1-2 bytes (which works as expected), I seem to be losing access to the data programmatically (the totalOutput variable on the first set of data is incomplete). I set up a packet capture, and it looks like those 1024 bytes are coming across the wire, but the app just isn't working with it. It looks like the next event is coming through and basically taking over. I tried using an NSLock to no avail as well. If I drop the buffer size down to 1 or 2, things seem to be reading just fine. This is probably obvious to someone who does this all the time, but this is my first foray into this with something I am familiar with, technology wise in other languages / platforms. The following code will show you what is happening. Run with the buffer set to 1024, and you will see a short final string, but once you set it to 1, you will see the amount of data I was expecting (I was even expecting it to be split, so that's not a big worry) #import <Foundation/Foundation.h> #import <Cocoa/Cocoa.h> //STACK OVERFLOW CODE: @interface stackoverflow : NSObject <NSStreamDelegate> { NSInputStream *iStream; NSOutputStream *oStream; int handshakeCode; NSString *selectedDiscId; NSString *selectedGenre; } -(void)getMatchesFromFreeDB; -(void)sendToOutputStream:(NSString*)command; @end @implementation stackoverflow -(void)getMatchesFromFreeDB { NSHost *host = [NSHost hostWithName:@"freedb.freedb.org"]; [NSStream getStreamsToHost:host port:8880 inputStream:&iStream outputStream:&oStream]; [iStream retain]; [oStream retain]; [iStream setDelegate:self]; [oStream setDelegate:self]; [iStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; [oStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; [iStream open]; [oStream open]; handshakeCode = 0; //not done any processing } -(void)stream:(NSStream *)aStream handleEvent:(NSStreamEvent)eventCode { switch(eventCode) { case NSStreamEventOpenCompleted: { NSLog(@"Stream open completed"); break; } case NSStreamEventHasBytesAvailable: { NSLog(@"Stream has bytes available"); if (aStream == iStream) { NSMutableString *totalOutput = [NSMutableString stringWithString:@""]; //read data uint8_t buffer[1024]; int len; while ([iStream hasBytesAvailable]) { len = [iStream read:buffer maxLength:sizeof(buffer)]; if (len 0) { NSString *output = [[NSString alloc] initWithBytes:buffer length:len encoding:NSUTF8StringEncoding]; //this could have also been put into an NSData object if (nil != output) { //append to the total output [totalOutput appendString:output]; } } } NSLog(@"OUTPUT , %i:\n\n%@", [totalOutput lengthOfBytesUsingEncoding:NSUTF8StringEncoding], totalOutput); NSArray *outputComponents = [totalOutput componentsSeparatedByString:@" "]; //Attempt to get handshake code, since we haven't done it yet: if (handshakeCode == 1) { //we are just getting the sign-on banner: //let's move on: handshakeCode = 2; } else if (handshakeCode == 2) { handshakeCode = [[outputComponents objectAtIndex:0] intValue]; if (handshakeCode == 200) { NSLog(@"---Handshake OK %i", handshakeCode); NSMutableString *query = [NSMutableString stringWithString:@"cddb query f3114b11 17 225 19915 36489 54850 69425 87025 103948 123242 136075 152817 178335 192850 211677 235104 262090 284882 308658 4430\n"]; handshakeCode = 3; [self sendToOutputStream:query]; } } else if (handshakeCode == 3) { //now, we are reading out the matches: if ([[outputComponents objectAtIndex:0] intValue] == 200) //found exact match: { NSLog(@"Found exact match"); selectedGenre = [outputComponents objectAtIndex:1] ; selectedDiscId = [outputComponents objectAtIndex:2]; if (selectedGenre && selectedDiscId) { //send off the request to get the entry: NSString *query = [NSString stringWithFormat:@"cddb read %@ %@\n", selectedGenre, selectedDiscId]; [self sendToOutputStream:query]; handshakeCode = 4; } } } } break; } case NSStreamEventEndEncountered: { NSLog(@"Stream event end encountered"); break; } case NSStreamEventErrorOccurred: { NSLog(@"Stream error occurred"); break; } case NSStreamEventHasSpaceAvailable: { NSLog(@"Stream has space available"); if (aStream == oStream) { if (handshakeCode == 0) { handshakeCode = 1; [self sendToOutputStream:@"cddb hello stackoverflow localhost.localdomain test .01BETA\n"]; } } break; } } } -(void)sendToOutputStream:(NSString*)command { const uint8_t *rawCommand = (const uint8_t *)[command UTF8String]; [oStream write:rawCommand maxLength:strlen(rawCommand)]; NSLog(@"Sent command: %@",command); } @end int main (int argc, const char * argv[]) { NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; stackoverflow *test = [[stackoverflow alloc] init]; [test getMatchesFromFreeDB]; NSRunLoop *runLoop = [NSRunLoop currentRunLoop]; [runLoop run]; [pool drain]; return 0; } Any help is much appreciated! Thanks

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• How do you convert a hexadecimal representation of data to binary data in PHP?

  - by Marcus Adams

  I'm familiar with php's function bin2hex() for converting binary data to its hexadecimal representation. However, what is the complement function to convert the hexadecimal representation of the data back to binary data? For example: $foo = "hello"; $foo = bin2hex($foo); echo $foo; // Displays 68656c6c6f How do I turn it back to hello? $foo = "68656c6c6f"; // Now what? There is no hex2bin() function.

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• Charts - Column chart with extra data

  - by Koran

  Hi, I have some data similar to the following chart: http://developer.yahoo.com/yui/examples/charts/charts-seriescustomization_clean.html Only difference is that for each of the fields - I have some other extra data - say For utlilities - I have a cash reserve for utility - as another field. I would prefer this data point to come above the utilities bar. I have been trying from morning to get this chart working, but I am unable to do so. Could you please let me know if it is possible - someway? Thank you very much in advance. Regards K

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• plotting results of hierarchical clustering ontop of a matrix of data in python

  - by user248237

  How can I plot a dendrogram right on top of a matrix of values, reordered appropriately to reflect the clustering, in Python? An example is in the bottom of the following figure: http://www.coriell.org/images/microarray.gif I use scipy.cluster.dendrogram to make my dendrogram and perform hierarchical clustering on a matrix of data. How can I then plot the data as a matrix where the rows have been reordered to reflect a clustering induced by the cutting the dendrogram at a particular threshold, and have the dendrogram plotted alongside the matrix? I know how to plot the dendrogram in scipy, but not how to plot the intensity matrix of data with the right scale bar next to it. Any help on this would be greatly appreciated.

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• Dynamically generate XPath expression using XML data

  - by iHeartGreek

  Hi! I would like to dynamically create XPath expressions in an XSL determined by data in an XML file. (i.e. the XML data is "concatenated" to create an XPath expression). Example of XML data: AAA BBB CCC Example of how I would like the XPath expression to look like: //AAA | //BBB | //CCC And this dynamic generation needs to be done in an XSL file. I am fairly new to XSL (and family) and would appreciate some general direction on how to tackle this problem. Thanks!

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• Data import wizard library for .Net?

  - by Phil

  Does anyone know of a 3rd party data import wizard that can be embedded into applications? It should import from Excel, Access, SQLServer, csv, tab-separated flat file, XML, Oracle etc. We have a fixed data structure within our application and the user should be able to configure the wizard to match his/her import fields to our own data structure. The wizard should be a library of sorts – preferably a .Net type library. We may want to have it both web-based and desktop based (hence we may need an ASP.Net controls version and a Winforms version). We may also want integration with WPF and Silverlight. If there’s no UI wizard available, does anyone know of a non-UI library that supports easily configurable import from many, many different datasources?

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• Java Google App Engine inconsistent data lose after restarting dev server

  - by user259349

  Hello everyone, I am using Java GAE. So far, i'm just scafolding my data objects and i'm seeing an interesting issue. The records that i am playing around with are getting updated properly as long as my dev server is running up. The second that the my dev server gets restarted, i lose all of my changes. That would be not alarming if i lost all of my records, but, there was a point of time where my data persisted through the server restart. I'm worried that i would lose production data if i launched without fixing this potential bugs? ANy idea on wher ei should look?

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