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Replacing blank values (white space) with NaN in pandas
... since pandas 0.13:
df = pd.DataFrame([
[-0.532681, 'foo', 0],
[1.490752, 'bar', 1],
[-1.387326, 'foo', 2],
[0.814772, 'baz', ' '],
[-0.222552, ' ', 4],
[-1.176781, 'qux', ' '],
], columns='A B C'.split(), index=pd.date_range('2000-01-01','2000-01-06'))
# ...
How to check if a view controller is presented modally or pushed on a navigation stack?
... Cœur
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answered May 12 '14 at 23:07
ColdLogicColdLogic
6,80011 gol...
Practical uses for the “internal” keyword in C#
... |
edited Nov 19 '18 at 14:22
ruffin
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answered...
What does the brk() system call do?
...not sure where the number 512GB in this diagram comes from. It implies a 64-bit virtual address space, which is inconsistent with the very simple memory map you have there. A real 64-bit address space looks more like this:
Legend: t: text, d: data, b: BSS
This is not remotely t...
clang: how to list supported target architectures?
...M may have several LLVM architectures such as regular ARM, Thumb and AArch64. This is mainly for implementation convenience because the different execution modes have very different instruction encodings and semantics.
For each of the architectures listed, llc -march=ARCH -mattr=help will list "avai...
Android Studio - Ambiguous method call getClass()
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edited Nov 21 '14 at 16:55
danielcooperxyz
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...
What is the difference between a generative and a discriminative algorithm?
... (2, 1)
p(x,y) is
y=0 y=1
-----------
x=1 | 1/2 0
x=2 | 1/4 1/4
p(y|x) is
y=0 y=1
-----------
x=1 | 1 0
x=2 | 1/2 1/2
If you take a few minutes to stare at those two matrices, you will understand the difference between the two probability distributions.
Th...
How to know/change current directory in Python shell?
...
304
You can use the os module.
>>> import os
>>> os.getcwd()
'/home/user'
>>...
How to hide reference counts in VS2013?
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answered Jul 25 '13 at 2:49
Mark HallMark Hall
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GitHub authentication failing over https, returning wrong email address
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answered Jan 27 '14 at 6:31
eleele
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