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Python pandas Filtering out nan from a data selection of a column of strings
...N:
In [87]:
nms
Out[87]:
movie name rating
0 thg John 3
1 thg NaN 4
3 mol Graham NaN
4 lob NaN NaN
5 lob NaN NaN
[5 rows x 3 columns]
In [89]:
nms = nms.dropna(thresh=2)
In [90]:
nms[nms.name.notnull()]
Out[90]:
movie name rating
0 ...
What is the difference between .*? and .* regular expressions?
...
179
It is the difference between greedy and non-greedy quantifiers.
Consider the input 1010000000...
How do I pass extra arguments to a Python decorator?
...
168
Since you are calling the decorator like a function, it needs to return another function which...
How to override trait function and call it from the overridden function?
...one was almost there:
trait A {
function calc($v) {
return $v+1;
}
}
class MyClass {
use A {
calc as protected traitcalc;
}
function calc($v) {
$v++;
return $this->traitcalc($v);
}
}
The trait is not a class. You can't access its member...
git diff between two different files
...
139
Specify the paths explicitly:
git diff HEAD:full/path/to/foo full/path/to/bar
Check out the --...
How do CUDA blocks/warps/threads map onto CUDA cores?
...
124
Two of the best references are
NVIDIA Fermi Compute Architecture Whitepaper
GF104 Reviews
...
What does dot (.) mean in a struct initializer?
...
144
This is a C99 feature that allows you to set specific fields of the struct by name in an initi...
Hide files with certain extension in Sublime Text Editor?
...
191
Are you talking about the sidebar? For example, if you select File → Open and select a fold...
What does mc:Ignorable=“d” mean in WPF?
...
118
The mc:Ignorable namespace provides xaml definitions that are "ignored" by the xaml processor....
Multiple ModelAdmins/views for same model in Django admin
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281
I've found one way to achieve what I want, by using proxy models to get around the fact that eac...