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How to sum a variable by group
I have a data frame with two columns. First column contains categories such as "First", "Second", "Third", and the second column has numbers that represent the number of times I saw the specific groups from "Category".
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Colors with unix command “watch”?
...ook at: superuser.com/questions/125469/… (first answer) - Maybe you can link it in your answer.
– aatdark
Apr 11 '12 at 2:26
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converting CSV/XLS to JSON? [closed]
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If you want to convert to text you can paste in your code, use the "Actionscript" option.
– Steve O'Connor
Nov 18 '13 at 11:13
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How to remove leading zeros from alphanumeric text?
I've seen questions on how to prefix zeros here in SO. But not the other way!
19 Answers
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Windows shell command to get the full path to the current directory?
Is there a Windows command line command that I can use to get the full path to the current working directory?
14 Answers
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Concat all strings inside a List using LINQ
Is there any easy LINQ expression to concatenate my entire List<string> collection items to a single string with a delimiter character?
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Fastest way to check if string contains only digits
I know a few ways how to check this.
regex, int.parse , tryparse ,looping.
18 Answers
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Do Facebook Oauth 2.0 Access Tokens Expire?
I am playing around with the Oauth 2.0 authorization in Facebook and was wondering if the access tokens Facebook passes out ever expire. If so, is there a way to request a long-life access token?
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Custom Drawable for ProgressBar/ProgressDialog
Reading the limited documentation that Google has provided, I get the feeling that it is possible to change the look (drawable) of a ProgressBar/ProgressDialog by simply creating a new style an assigning it to the style property of the ProgressBar. But I cannot get this to work properly. Here is wha...
C# switch on type [duplicate]
C# doesn't support switching on the type of an object.
What is the best pattern of simulating this:
5 Answers
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