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How to check whether a file is empty or not?
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What does -1 mean in numpy reshape?
... example.
z = np.array([[1, 2, 3, 4],
[5, 6, 7, 8],
[9, 10, 11, 12]])
z.shape
(3, 4)
Now trying to reshape with (-1) . Result new shape is (12,) and is compatible with original shape (3,4)
z.reshape(-1)
array([ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12])
Now trying to re...
How to set working/current directory in Vim?
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answered Feb 18 '10 at 13:11
falstrofalstro
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Why does the MongoDB Java driver use a random number generator in a conditional?
...ut notice the reversed logic: here the event is logged if either _ok or in 10% of other cases, whereas the code in 2. returns 10% of the times and logs 90% of the times. So the later commit ruined not only clarity, but correctness itself.
I think in the code you have posted we can actually see how...
Which is better, number(x) or parseFloat(x)?
...oat('1.501'); // => 1.501
Number('1.501'); // => 1.501
parseFloat('1e10'); // => 10000000000
Number('1e10'); // => 10000000000
So as long as you have standard numeric input, there's no difference. However, if your input starts with a number and then contains other characters, parseFloa...
Find and replace string values in list
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answered Jun 28 '10 at 22:47
sberrysberry
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Convert a matrix to a 1 dimensional array
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Ruby regular expression using variable name
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answered Feb 15 '10 at 20:07
Wayne ConradWayne Conrad
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Printing newlines with print() in R
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edited Nov 1 '10 at 19:12
answered Nov 1 '10 at 19:07
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How to find a min/max with Ruby
I want to use min(5,10) , or Math.max(4,7) . Are there functions to this effect in Ruby?
6 Answers
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