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How to take column-slices of dataframe in pandas
...e .loc
See the deprecation in the docs
.loc uses label based indexing to select both rows and columns. The labels being the values of the index or the columns. Slicing with .loc includes the last element.
Let's assume we have a DataFrame with the following columns:
foo, bar, quz, ant, cat, ...
Cartesian product of x and y array points into single array of 2D points
I have two numpy arrays that define the x and y axes of a grid. For example:
13 Answers
...
Returning anonymous type in C#
...C = new MyDC())
{
var TheQueryFromDB = (....
select new { SomeVariable = ....,
AnotherVariable = ....}
).ToList();
return TheQueryFromDB
.Select(s => (
SomeVariable...
What does the “>” (greater-than sign) CSS selector mean?
...etimes mistakenly called the direct descendant combinator.1
That means the selector div > p.some_class only selects paragraphs of .some_class that are nested directly inside a div, and not any paragraphs that are nested further within.
An illustration:
div > p.some_class {
background:...
How can I get the current user's username in Bash?
...
On the command line, enter
whoami
or
echo "$USER"
To save these values to a variable, do
myvariable=$(whoami)
or
myvariable=$USER
Of course, you don't need to make a variable since that is what the $USER variable is for.
...
How to compare two NSDates: Which is more recent?
I am trying to achieve a dropBox sync and need to compare the dates of two files. One is on my dropBox account and one is on my iPhone.
...
What is state-of-the-art for text rendering in OpenGL as of version 4.1? [closed]
...g easily antialiased, which is trivial using a distance-map-textured quad, and evaluating curves in the shader is still computationally much more expensive than necessary.
The best trade-off between "fast" and "quality" are still textured quads with a signed distance field texture. It is very sligh...
What CSS selector can be used to select the first div within another div
...
Can you tell me how to select all div except first/last div?
– Tân
Jul 5 '16 at 9:17
5
...
Minimum and maximum value of z-index?
...r>) or
real number values (denoted by
<number>). Real numbers and
integers are specified in decimal
notation only. An <integer>
consists of one or more digits "0" to
"9". A <number> can either be an
<integer>, or it can be zero or
more digits followed by a ...
pydot and graphviz error: Couldn't import dot_parser, loading of dot files will not be possible
....1:
The incompatibility of (upstream) pydot has been fixed by 6dff94b3f1, and thus pydot >= 1.1 will be compatible with pyparsing >= 1.5.7.
Answer applicable to pydot <= 1.0.28:
For anyone else who comes across this, it is due to the changes in pyparsing from 1.x to the 2.x release.
To...