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PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
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30 Answers
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Single Line Nested For Loops
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Anthony Geoghegan
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answered Jun 9 '13 at 5:26
Jeff TratnerJeff Tratner
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Calculating how many minutes there are between two times
... you trying 'span.Minutes', this will return only the minutes of timespan [0~59], to return sum of all minutes from this interval, just use 'span.TotalMinutes'.
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How add “or” in switch statements?
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edited May 11 '09 at 14:56
answered May 11 '09 at 14:51
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How to combine multiple conditions to subset a data-frame using “OR”?
... it is to be handled as I intended, since ...
> NA & 1
[1] NA
> 0 & NA
[1] FALSE
Order of arguments may matter when using '&".
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How can I divide two integers to get a double?
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answered Mar 19 '09 at 4:14
NoahDNoahD
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What's with 181783497276652981 and 8682522807148012 in Random (Java 7)?
Why were 181783497276652981 and 8682522807148012 chosen in Random.java ?
3 Answers
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How to “re-run with -deprecation for details” in sbt?
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edited Mar 13 '19 at 10:16
Jacek Laskowski
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Return positions of a regex match() in Javascript?
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answered Feb 19 '10 at 10:49
GumboGumbo
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How to split/partition a dataset into training and test datasets for, e.g., cross validation?
...k of the indices:
import numpy
# x is your dataset
x = numpy.random.rand(100, 5)
numpy.random.shuffle(x)
training, test = x[:80,:], x[80:,:]
or
import numpy
# x is your dataset
x = numpy.random.rand(100, 5)
indices = numpy.random.permutation(x.shape[0])
training_idx, test_idx = indices[:80], ind...