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Select rows of a matrix that meet a condition
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162
This is easier to do if you convert your matrix to a data frame using as.data.frame(). In tha...
Using git commit -a with vim
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In vim, you save a file with :wEnter while in the normal mode (you get to the normal mode by ...
Why can I create a class named “var”?
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var is not a keyword according to this list.
it is a contextual keyword, so from the context ...
How to get multiple select box values using jQuery?
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jQuery .val()
var foo = $('#multiple').val();
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Is it possible to start a shell session in a running container (without ssh)
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15 Answers
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OrderBy descending in Lambda expression?
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edited Jul 19 '11 at 19:01
answered Oct 28 '09 at 6:34
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MySQL - length() vs char_length()
...r example:
select length(_utf8 '€'), char_length(_utf8 '€')
--> 3, 1
As you can see the Euro sign occupies 3 bytes (it's encoded as 0xE282AC in UTF-8) even though it's only one character.
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How to check if a given directory exists in Ruby
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edited Aug 12 '17 at 2:51
Totor
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answered Jul 6 '09 ...
How to change ProgressBar's progress indicator color in Android
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18 Answers
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Difference between single and double quotes in Bash
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Single quotes won't interpolate anything, but double quotes will. For example: variables, backt...