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Pandas: drop a level from a multi-level column index?
...tuples([("a", "b"), ("a", "c")])
>>> df = pd.DataFrame([[1,2], [3,4]], columns=cols)
>>> df
a
b c
0 1 2
1 3 4
[2 rows x 2 columns]
>>> df.columns = df.columns.droplevel()
>>> df
b c
0 1 2
1 3 4
[2 rows x 2 columns]
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How do I handle newlines in JSON?
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edited Oct 14 '13 at 12:04
answered Sep 3 '08 at 16:32
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Folder structure for a Node.js project
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442
Concerning the folders you mentioned:
/libs is usually used for custom classes/functions/mod...
How to print register values in GDB?
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edited Mar 30 '14 at 19:59
Millie Smith
4,32622 gold badges2020 silver badges5656 bronze badges
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How to do scanf for single char in C [duplicate]
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answered Nov 24 '12 at 16:31
John BodeJohn Bode
98k1515 gold badges9696 silver badges170170 bronze badges
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Print a string as hex bytes?
...have this string: Hello world !! and I want to print it using Python as 48:65:6c:6c:6f:20:77:6f:72:6c:64:20:21:21 .
13 A...
How to decide font color in white or black depending on background color?
...and choose the corresponding text.
if (red*0.299 + green*0.587 + blue*0.114) > 186 use #000000 else use #ffffff
The threshold of 186 is based on theory, but can be adjusted to taste. Based on the comments below a threshold of 150 may work better for you.
Edit: The above is simple and works re...
Finding ALL duplicate rows, including “elements with smaller subscripts”
...frame is a duplicate of an element with a smaller subscript. So if rows 3, 4, and 5 of a 5-row data frame are the same, duplicated will give me the vector
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How do I expand a tuple into variadic template function's arguments?
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47
Here's my code if anyone is interested
Basically at compile time the compiler will recursively...
ERROR:'keytool' is not recognized as an internal or external command, operable program or batch file
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edited Jan 19 at 19:44
Yennefer
3,84155 gold badges2121 silver badges3434 bronze badges
answered J...