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Trimming a huge (3.5 GB) csv file to read into R
...rge is one pack
while(length(x)) {
ind <- grep("^[^;]*;[^;]*; 20(09|10)", x)
if (length(ind)) writeLines(x[ind], file_out)
x <- readLines(file_in, n=B)
}
close(file_in)
close(file_out)
share
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System.IO.Packaging
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For a C# solution in Visual Studio 2010 with .NET 4.0:
In your project's Solution Explorer, right-click on References and select Add References from the context menu.
Select Assemblies in the left-hand pane, then click the Browse button next to the File name ...
Using Pylint with Django
...ne show-stopper: One of the
error types that I find extremely useful--: E1101: *%s %r has no %r
member* --constantly reports errors when using common django fields,
for example:
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How to construct a REST API that takes an array of id's for the resources
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answered Dec 27 '10 at 20:04
Florin DumitrescuFlorin Dumitrescu
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Generate MD5 hash string with T-SQL
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answered Aug 19 '10 at 20:40
Konstantin TarkusKonstantin Tarkus
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Restoring MySQL database from physical files
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Benoit Duffez
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answered Jan 27 '09 at 19:09
VincentVincent
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Why #define TRUE (1==1) in a C boolean macro instead of simply as 1?
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137
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What is the difference between String.Empty and “” (empty string)?
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Brian R. BondyBrian R. Bondy
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Is there a JavaScript / jQuery DOM change listener?
...failure in JSFiddle. I have not tested it in IE yet, since i don't have IE 10, which is currently the only version to support mutation events.
– apsillers
Mar 25 '13 at 15:20
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Date vs DateTime
...k from experience that using date for anything is a bad idea unless you're 100% sure your app will only ever operate in one time zone. Saving everything as datetime gives you the best of both worlds, including most critically, an easy way to avoid timezone nightmares if your server's timezone confi...