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Convert a 1D array to a 2D array in numpy
I want to convert a 1-dimensional array into a 2-dimensional array by specifying the number of columns in the 2D array. Something that would work like this:
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How can I explicitly free memory in Python?
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I need to load and process several numpy arrays of 25GB in a system with 32GB memory. Using del my_array followed by gc.collect() after processing the array is the only way the memory is actually released and my process survives to load the next array.
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How do I declare and initialize an array in Java?
How do I declare and initialize an array in Java?
28 Answers
28
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PHP - add item to beginning of associative array [duplicate]
How can I add an item to the beginning of an associative array? For example, say I have an array like this:
5 Answers
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Create ArrayList from array
I have an array that is initialized like:
38 Answers
38
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Check if all values of array are equal
I need to find arrays where all values are equal. What's the fastest way to do this? Should I loop through it and just compare values?
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Rails raw SQL example
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You can do this:
sql = "Select * from ... your sql query here"
records_array = ActiveRecord::Base.connection.execute(sql)
records_array would then be the result of your sql query in an array which you can iterate through.
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Removing array item by value
I need to remove array item with given value:
10 Answers
10
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GSON throwing “Expected BEGIN_OBJECT but was BEGIN_ARRAY”?
...ou're telling Gson you have an object of your type. You don't. You have an array of objects of your type. You can't just try and cast the result like that and expect it to magically work ;)
The User guide for Gson Explains how to deal with this:
https://github.com/google/gson/blob/master/UserGuide...
PHP Sort Array By SubArray Value
I have the following array structure:
6 Answers
6
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