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Automatically expanding an R factor into a collection of 1/0 indicator variables for every factor le
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edited Jan 13 '16 at 20:13
Jaap
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Why isn't sizeof for a struct equal to the sum of sizeof of each member?
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12 Answers
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App Inventor 2 变量代码块 · App Inventor 2 中文网
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How to add multiple files to Git at the same time
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124
To add all the changes you've made:
git add .
To commit them:
git commit -m "MY MESSAGE HERE...
How to add calendar events in Android?
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edited Jul 30 '12 at 18:17
answered Sep 15 '10 at 23:13
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What is a magic number, and why is it bad? [closed]
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answered Sep 6 '08 at 22:46
Marcio AguiarMarcio Aguiar
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Git Blame Commit Statistics
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edited Sep 9 '19 at 17:29
Nick Heiner
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How to check if a process id (PID) exists
...o something based on the exit code, you can
if ! kill $pid > /dev/null 2>&1; then
echo "Could not send SIGTERM to process $pid" >&2
fi
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Convert two lists into a dictionary
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2258
Like this:
>>> keys = ['a', 'b', 'c']
>>> values = [1, 2, 3]
>>> ...
Selecting multiple columns in a pandas dataframe
...of the first two columns) then you can do this instead:
df1 = df.iloc[:, 0:2] # Remember that Python does not slice inclusive of the ending index.
Additionally, you should familiarize yourself with the idea of a view into a Pandas object vs. a copy of that object. The first of the above methods wil...