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Pandas: create two new columns in a dataframe with values calculated from a pre-existing column
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How to pip install a package with min and max version range?
... install a package with both a minimum version ( pip install package>=0.2 ) and a maximum version which should never be installed (theoretical api: pip install package<0.3 ).
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How to host a Node.Js application in shared hosting [closed]
...ename the folder for simplicity
exec('mv node-v0.10.33-linux-x86 node');
2) The same way install your node app, e.g. jt-js-sample, using npm:
<?php
exec('node/bin/npm install jt-js-sample');
3) Run the node app from PHP:
<?php
//Choose JS file to run
$file = 'node_modules/jt-js-sample/in...
View the Task's activity stack
...ivity:
Activities in Current Activity Manager State:
* TaskRecord{44d07218 #4 A android.task.contacts}
clearOnBackground=true numActivities=2 rootWasReset=true
affinity=android.task.contacts
intent={act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10600000 ...
What would cause an algorithm to have O(log n) complexity?
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290
I have to agree that it's pretty weird the first time you see an O(log n) algorithm... where o...
The modulo operation on negative numbers in Python
...the denominator (divisor). Your expression yields 3 because
(-5) / 4 = -1.25 --> floor(-1.25) = -2
(-5) % 4 = (-2 × 4 + 3) % 4 = 3.
It is chosen over the C behavior because a nonnegative result is often more useful. An example is to compute week days. If today is Tuesday (day #2), what is the...
Efficient way to apply multiple filters to pandas DataFrame or Series
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250
Pandas (and numpy) allow for boolean indexing, which will be much more efficient:
In [11]: df...
Split column at delimiter in data frame [duplicate]
...as.character(FOO), '|', fixed=TRUE))))
Which produces:
ID FOO.X1 FOO.X2
1 11 a b
2 12 b c
3 13 x y
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What ReSharper 4+ live templates for C# do you use? [closed]
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Javascript and regex: split string and keep the separator
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answered Aug 17 '12 at 8:01
JonJon
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