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Cleaning `Inf` values from an R dataframe
In R, I have an operation which creates some Inf values when I transform a dataframe.
8 Answers
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How can I map True/False to 1/0 in a Pandas DataFrame?
I have a column in python pandas DataFrame that has boolean True/False values, but for further calculations I need 1/0 representation. Is there a quick pandas/numpy way to do that?
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Differences between Oracle JDK and OpenJDK
Are there any crucial differences between Oracle and OpenJDK?
11 Answers
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HSL to RGB color conversion
I am looking for a JavaScript / PHP algorithm to convert between HSL color to RGB.
19 Answers
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Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)
I was going through the exercises in Ruby Koans and I was struck by the following Ruby quirk that I found really unexplainable:
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How are feature_importances in RandomForestClassifier determined?
I have a classification task with a time-series as the data input, where each attribute (n=23) represents a specific point in time. Besides the absolute classification result I would like to find out, which attributes/dates contribute to the result to what extent. Therefore I am just using the feat...
How do I truncate a .NET string?
I would like to truncate a string such that its length is not longer than a given value. I am writing to a database table and want to ensure that the values I write meet the constraint of the column's datatype.
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Generate a random point within a circle (uniformly)
I need to generate a uniformly random point within a circle of radius R .
21 Answers
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Resizing an image in an HTML5 canvas
I'm trying to create a thumbnail image on the client side using javascript and a canvas element, but when I shrink the image down, it looks terrible. It looks as if it was downsized in photoshop with the resampling set to 'Nearest Neighbor' instead of Bicubic. I know its possible to get this to lo...
Pandas: drop a level from a multi-level column index?
If I've got a multi-level column index:
7 Answers
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