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GroupBy pandas DataFrame and select most common value

I have a data frame with three string columns. I know that the only one value in the 3rd column is valid for every combination of the first two. To clean the data I have to group by data frame by first two columns and select most common value of the third column for each combination. ...
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Android, canvas: How do I clear (delete contents of) a canvas (= bitmaps), living in a surfaceView?

In order to make a simple game, I used a template that draws a canvas with bitmaps like this: 18 Answers ...
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What is the correct file extension for GLSL shaders? [closed]

I'm learning glsl shading and I've come across different file formats. I've seen people giving their vertex and fragment shaders .vert and .frag extensions. But I've also seen .vsh and .fsh extensions, and even both shaders together in a single .glsl file. So I'm wondering if there is a st...
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no acceptable C compiler found in $PATH when installing python

I'm trying to install new python environment on my shared hosting. I follow the steps written in this post : 11 Answers ...
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how to prevent “directory already exists error” in a makefile when using mkdir

I need to generate a directory in my makefile and I would like to not get the "directory already exists error" over and over even though I can easily ignore it. ...
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How do I find all installed packages that depend on a given package in NPM?

I have a npm package that i want to update. I can update my package.json, but I don't want to break something. Is there a way to list all of the installed packages that depend on it? ...
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How to jump back to NERDTree from file in tab?

I usually: 10 Answers 10 ...
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How to format strings in Java

Primitive question, but how do I format strings like this: 8 Answers 8 ...
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How do I dynamically assign properties to an object in TypeScript?

If I wanted to programatically assign a property to an object in Javascript, I would do it like this: 23 Answers ...
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How to hide keyboard in swift on pressing return key?

I am using UITextfied while clicking on textfied keyboard appear but when i pressed the return key, keyboard is not disappearing. I used the following code: ...