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Find a pair of elements from an array whose sum equals a given number
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edited Sep 12 at 14:53
hjpotter92
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How to get the separate digits of an int number?
I have numbers like 1100, 1002, 1022 etc. I would like to have the individual digits, for example for the first number 1100 I want to have 1, 1, 0, 0.
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Difference between map, applymap and apply methods in Pandas
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Straight from Wes McKinney's Python for Data Analysis book, pg. 132 (I highly recommended this book):
Another frequent operation is applying a function on 1D arrays to each column or row. DataFrame’s apply method does exactly this:
In [116]: frame = DataFrame(np.random.randn(4, 3), ...
JavaScript equivalent to printf/String.Format
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Reorder levels of a factor without changing order of values
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121
Use the levels argument of factor:
df <- data.frame(f = 1:4, g = letters[1:4])
df
# f g
#...
How to jump from Intellij terminal to editor with shortcut
...ould be nice since I can jump from my editor to the terminal with Alt + F12 but I cannot do it the other way without using my mouse.
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Lambda function in list comprehensions
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271
The first one creates a single lambda function and calls it ten times.
The second one doesn't ...
how to convert array values from string to int?
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552
You can achieve this by following code,
$integerIDs = array_map('intval', explode(',', $string)...