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Add column with number of days between dates in DataFrame pandas
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to expand on @AndyHayden comment, that works but it should pd.offsets.Day(1) (with an 's'). I also usually negate it, so you get (df['A'] - df['B']) / pd.offsets.Day(-1)
– dirkjot
Oct 14 '15 at 18:54
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Why does multiprocessing use only a single core after I import numpy?
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OPENBLAS_MAIN_FREE=1 python myscript.py
Or alternatively, if you're compiling OpenBLAS from source you can permanently disable it at build-time by editing the Makefile.rule to contain the line
NO_AFFINITY=1
share
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Rails respond_with: how does it work?
...rated into the third-party responders gem as of Rails 4.2 (release notes / commit dated Aug 2014). While responders is not included in Rails by default, it is a dependency of Devise, and thus available in many Rails applications.
The #respond_to instance method, however, is still a part of Rails (5...
What is ApplicationException for in .NET?
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According to the remarks in msdn:
User applications, not the common language runtime, throw custom exceptions derived from the ApplicationException class. The ApplicationException class differentiates between exceptions defined by applications versus exceptions defined by the system.
I...
How to send POST request in JSON using HTTPClient in Android?
...f why you do each step, or of what that step does. It doesn't need to be a complicated, simple will suffice.
5 Answers
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How to RedirectToAction in ASP.NET MVC without losing request data
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The solution is to use the TempData property to store the desired Request components.
For instance:
public ActionResult Send()
{
TempData["form"] = Request.Form;
return this.RedirectToAction(a => a.Form());
}
Then in your "Form" action you can go:
public ActionResult Form()
{
/*...
What's the best free C++ profiler for Windows? [closed]
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Here is the link for CodeAnalyst: developer.amd.com/CPU/CODEANALYST/Pages/default.aspx
– epotter
Feb 19 '09 at 17:19
1
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How to redirect stderr and stdout to different files in the same line in script?
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Just add them in one line command 2>> error 1>> output
However, note that >> is for appending if the file already has data. Whereas, > will overwrite any existing data in the file.
So, command 2> error 1> output if you do ...
Difference between namespace in C# and package in Java
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