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Replace specific characters within strings
...
410
With a regular expression and the function gsub():
group <- c("12357e", "12575e", "197e18", ...
Detect if a NumPy array contains at least one non-numeric value?
...ng and will work regardless of shape.
numpy.isnan(myarray).any()
Edit: 30x faster:
import timeit
s = 'import numpy;a = numpy.arange(10000.).reshape((100,100));a[10,10]=numpy.nan'
ms = [
'numpy.isnan(a).any()',
'any(numpy.isnan(x) for x in a.flatten())']
for m in ms:
print " %.2f s" ...
Python: most idiomatic way to convert None to empty string?
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answered Jun 23 '09 at 19:28
TriptychTriptych
180k3131 gold badges140140 silver badges167167 bronze badges
...
What does a tilde do when it precedes an expression?
...ntation of the IEEE 754 float (how JavaScript treats numbers) would be...
0011 1111 1111 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
So ~ converts its operand to a 32 bit integer (bitwise operators in JavaScript do that)...
0000 0000 0000 0000 0000 0000 0000 0001
If it wer...
form_for but to post to a different action
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AustinAustin
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15
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Strip html from string Ruby on Rails
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140
There's a strip_tags method in ActionView::Helpers::SanitizeHelper:
http://api.rubyonrails.org/...
How to check if an element is in an array
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Sazzad Hissain Khan
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answered Aug 19 '14 at 19:41
Martin RMartin R
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How do I prevent the iPhone screen from dimming or turning off while my application is running?
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answered Sep 24 '08 at 6:07
lajoslajos
24.4k1919 gold badges6161 silver badges7474 bronze badges
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Difference between a Seq and a List in Scala
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Daniel C. SobralDaniel C. Sobral
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Gesture recognizer and button actions
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edited Jul 26 '11 at 11:40
forsvarir
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answered J...