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How to learn R as a programming language [closed]
... It's way too detailed. The article by John Cook above is way more concise. As a programmer, you don't need a large part of "The R book".
– Max
Nov 2 '15 at 10:19
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How do you get the length of a string?
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Convert normal date to unix timestamp
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Web colors in an Android color xml resource file
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A more organized version for this here
– wtsang02
Apr 24 '13 at 0:11
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Load data from txt with pandas
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Equivalently you can specify the more verbose argument delim_whitespace=True instead of the '\s+' delimiter
– ALollz
Aug 28 '19 at 18:55
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Using crontab to execute script every minute and another every 24 hours [closed]
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Unfortunately you can't run cron jobs more frequently than every minute. You'll have to use something else for that.
– Jan Hančič
Nov 26 '12 at 19:41
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Python Script execute commands in Terminal
...his:
A simple way is using the os module:
import os
os.system("ls -l")
More complex things can be achieved with the subprocess module:
for example:
import subprocess
test = subprocess.Popen(["ping","-W","2","-c", "1", "192.168.1.70"], stdout=subprocess.PIPE)
output = test.communicate()[0]
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Remove multiple spaces and new lines inside of String
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this regex will replace instance of 1 or more white spaces with 1 white space, p.s \s will replace all white space characters which includes \s\t\r\n\f:
a_string.gsub!(/\s+/, ' ')
Similarly for only carriage return
str.gsub!(/\n/, " ")
First replace all \n wit...
CSS last-child selector: select last-element of specific class, not last child inside of parent?
...atch(selector) and :nth-last-match(selector). See w3.org/TR/selectors4 for more detail.
– Chris
Feb 9 '15 at 22:55
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How to convert a Bitmap to Drawable in android?
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this is a more accurate answer considering the one from @Manoj is deprecated.
– Raykud
Mar 9 '12 at 21:51
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