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How to organize large R programs?
When I undertake an R project of any complexity, my scripts quickly get long and confusing.
11 Answers
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MySQL: @variable vs. variable. What's the difference?
... will only be available in the current batch of queries (stored procedure, script, or otherwise). It will not be available in a different batch in the same session.
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How to prevent form from submitting multiple times from client side?
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Use unobtrusive javascript to disable the submit event on the form after it has already been submitted. Here is an example using jQuery.
EDIT: Fixed issue with submitting a form without clicking the submit button. Thanks, ichiban.
$("body").on...
How do I create a nice-looking DMG for Mac OS X using command-line tools?
...in System Preferences>>Universal Access. It is required for the AppleScript to work. You may have to reboot after this change (it doesn't work otherwise on Mac OS X Server 10.4).
Create a R/W DMG. It must be larger than the result will be. In this example, the bash variable "size" contains the...
How do I implement basic “Long Polling”?
...chance of returning an error 404 (to show error handling in the coming Javascript example)
msgsrv.php
<?php
if(rand(1,3) == 1){
/* Fake an error */
header("HTTP/1.0 404 Not Found");
die();
}
/* Send a string after a random number of seconds (2-10) */
sleep(rand(2,10));
echo("Hi! Ha...
Checking in packages from NuGet into version control?
...lPath)" -o Packages' />
<!-- optional for project that has JavaScript content -->
<CreateItem Include="Packages\*\Content\Scripts\*">
<Output TaskParameter="Include" ItemName="NuGetJSFiles"/>
</CreateItem>
<Copy SourceFiles="@(NuGetJSFiles)" Des...
Convert XLS to CSV on command line
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Open Notepad, create a file called XlsToCsv.vbs and paste this in:
if WScript.Arguments.Count < 2 Then
WScript.Echo "Error! Please specify the source path and the destination. Usage: XlsToCsv SourcePath.xls Destination.csv"
Wscript.Quit
End If
Dim oExcel
Set oExcel = CreateObject("Exc...
Can I use CoffeeScript instead of JS for node.js?
What are my restrictions if I want to code node.js and use CoffeeScript?
Can I do anything I'd be able to do in JS?
8 Answe...
How to run script as another user without password?
I have script.sh that must be run as user2. However, this script can only be run under user1 in my application.
3 Answers
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How do I create and access the global variables in Groovy?
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In a Groovy script the scoping can be different than expected. That is because a Groovy script in itself is a class with a method that will run the code, but that is all done runtime. We can define a variable to be scoped to the script b...