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Get column index from column name in python pandas
...pecified label or are duplicates, the index with the larger index value is selected:
df = pd.DataFrame(
{"pear": [1, 2, 3], "apple": [2, 3, 4], "orange": [3, 4, 5]},
index=[0, .9, 1.1])
df.index.get_indexer([0, 1])
# array([ 0, -1], dtype=int64)
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Shortcut to exit scale mode in VirtualBox [closed]
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worst selection of hotkey ever
– Woeitg
Jan 25 '16 at 15:17
22
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Sample random rows in dataframe
...356774 -0.1640883
9 -0.3983045 0.7157506
10 -0.9060305 2.3234110
Then select some rows at random:
> df[sample(nrow(df), 3), ]
X1 X2
9 -0.3983045 0.7157506
2 -1.1334614 -0.1973846
10 -0.9060305 2.3234110
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How do you check whether a number is divisible by another number (Python)?
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to answer your question: select and ctrl+K indents. I've done that for you for this time.
– Jean-François Fabre♦
Jan 4 '17 at 21:17
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Windows path in Python
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however best practice is to use the os.path module functions that always select the correct configuration for your OS:
os.path.join(mydir, myfile)
From python 3.4 you can also use the pathlib module. This is equivelent to the above:
pathlib.Path(mydir, myfile)
or
pathlib.Path(mydir) / myfil...
jQuery checkbox change and click event
...tion pops up even for check-action (it should only pop up for uncheck) and selecting ok does not result in checking the box.
– Professor Chaos
Aug 11 '11 at 18:57
1
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Android device chooser - My device seems offline
... to DDMS->Devices->Click on View Menu Down arrow on right side -> select "reset adb" option it will work
In Android Studio: open the Android Device Monitor (Tools->Android) and click on the arrow on the 'Devices' tab to reset the adb
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How can I view an old version of a file with Git?
...sion, (corresponding to the "patch" radio button).
To see the file for the selected revision:
Click on the "tree" radio button. This will show the root of the file tree at that revision.
Drill down to your file.
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What are the ways to make an html link open a folder
... the Properties tab make sure the "A share located on another computer" is selected and the "Connect as..." is an account that can see the network location.
Link to the virtual directory from your webpage (e.g. http://yoursite/yourvirtualdir/) and this will open up a view of the directory in the we...
Deleting multiple elements from a list
...; del a[0:3:2]
>>> a
[1, 3, 4]
This doesn't cover any arbitrary selection, of course, but it can certainly work for deleting any two items.
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