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How to use a variable for the key part of a map

... 169 Use this: def map = [(A):1, (X):2] For the value-part it's even easier, since there is no a...
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How do I find if a string starts with another string in Ruby?

... | edited Jan 11 '13 at 23:53 the Tin Man 147k3131 gold badges192192 silver badges272272 bronze badges ...
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Set markers for individual points on a line in Matplotlib

...For example, using a dashed line and blue circle markers: plt.plot(range(10), linestyle='--', marker='o', color='b') A shortcut call for the same thing: plt.plot(range(10), '--bo') Here is a list of the possible line and marker styles: ================ =============================== c...
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How to merge 2 JSON objects from 2 files using jq?

... 165 Since 1.4 this is now possible with the * operator. When given two objects, it will merge them...
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Map function in MATLAB?

... 133 The short answer: the built-in function arrayfun does exactly what your map function does for ...
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Extract substring using regexp in plain bash

... 211 Using pure bash : $ cat file.txt US/Central - 10:26 PM (CST) $ while read a b time x; do [[ $b...
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regex for zip-code

... 316 ^\d{5}(?:[-\s]\d{4})?$ ^ = Start of the string. \d{5} = Match 5 digits (for condition 1, 2, ...
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In Sublime Text 2, how do I open new files in a new tab?

... 417 OSX-Only: Add the following to Preferences > Settings - User or ⌘ + , : "open_files_in_ne...
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RuntimeWarning: invalid value encountered in divide

... 157 I think your code is trying to "divide by zero" or "divide by NaN". If you are aware of that a...
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Turn Pandas Multi-Index into column

... 197 The reset_index() is a pandas DataFrame method that will transfer index values into the DataFr...