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Get statistics for each group (such as count, mean, etc) using pandas GroupBy?
...instead of a Series) so you can do:
df.groupby(['col1', 'col2']).size().reset_index(name='counts')
If you want to find out how to calculate the row counts and other statistics for each group continue reading below.
Detailed example:
Consider the following example dataframe:
In [2]: df
Out...
Colorizing text in the console with C++
... k = 1; k < 255; k++)
{
// pick the colorattribute k you want
SetConsoleTextAttribute(hConsole, k);
cout << k << " I want to be nice today!" << endl;
}
Character Attributes
Here is how the "k" value be interpreted.
...
Regular expression to match URLs in Java
...s. Spaces, dots, or dashes
* may follow.
* <li>Optionally, sets of digits in parentheses, separated by spaces, dots, or dashes.
* <li>A string starting and ending with a digit, containing digits, spaces, dots, and/or dashes.
* </ul>
*/
public static fin...
How can we run a test method with multiple parameters in MSTest?
...y and TestPropertyAttribute.
Example
public TestContext TestContext { get; set; }
private List<string> GetProperties()
{
return TestContext.Properties
.Cast<KeyValuePair<string, object>>()
.Where(_ => _.Key.StartsWith("par"))
.Select(_ => _.Value a...
How do I properly force a Git push?
I've set up a remote non-bare "main" repo and cloned it to my computer. I made some local changes, updated my local repository, and pushed the changes back to my remote repo. Things were fine up to that point.
...
Convert a list of data frames into one data frame
... Thank you so much for this -- I was pulling my hair out because my data sets were getting too big for ldplying a bunch of long, molten data frames. Anyways, I got an incredible speedup by using your rbindlist suggestion.
– KarateSnowMachine
Sep 18 '13 at 5:5...
Sorting data based on second column of a file
...WARNING *** The locale specified by the environment affects sort order. Set LC_ALL=C to get the traditional sort order that uses native byte values." (for string match case without -n)
– x'ES
Sep 29 '18 at 0:28
...
How do I join two lines in vi?
I have two lines in a text file like below:
9 Answers
9
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What's the best way to bundle static resources in a Go program? [closed]
...eveloper's machine to help debug their applications/web services. The interface to the program is a web page which includes not only the HTML, but some JavaScript (for functionality), images and CSS (for styling). I'm planning on open-sourcing this application, so users should simply be able to run ...
How do I perform an IF…THEN in an SQL SELECT?
...these limitations (for example, a need to return differently shaped result sets dependent on some condition) then SQL Server does also have a procedural IF keyword.
IF @IncludeExtendedInformation = 1
BEGIN
SELECT A,B,C,X,Y,Z
FROM T
END
ELSE
BEGIN
SELECT A,B,C
FROM ...