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How to compare two colors for similarity/difference
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19 Answers
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C# vs Java Enum (for those new to C#)
..., but at first glance, C#'s enums seem to be more simplistic than the Java 1.5+ implementation. Can anyone enumerate the differences between C# and Java enums, and how to overcome the differences? (I don't want to start a language flame war, I just want to know how to do some things in C# that I u...
How to get the index of a maximum element in a numpy array along one axis
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144
>>> a.argmax(axis=0)
array([1, 1, 0])
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How to match a String against string literals in Rust?
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101
You can do something like this:
match &stringthing[..] {
"a" => println!("0"),
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How to tell Jackson to ignore a field during serialization if its value is null?
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Calculate distance between two points in google maps V3
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15 Answers
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Extracting specific columns in numpy array
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I assume you wanted columns 1 and 9?
To select multiple columns at once, use
X = data[:, [1, 9]]
To select one at a time, use
x, y = data[:, 1], data[:, 9]
With names:
data[:, ['Column Name1','Column Name2']]
You can get the names from data.dtype.na...
Multi-line commands in GHCi
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187
Most of the time, you can rely on type inference to work out a signature for you. In your exam...
How to do version numbers? [closed]
...the "unstable watchout" on there. So how would you go about versioning? Is 1.0 stable? Should the build date be in the version number? Tell me what you guys think!
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