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Looping over a list in Python
...en(x) should be equal to 3.
>>> mylist = [[1,2,3],[4,5,6,7],[8,9,10]]
>>> for x in mylist:
... if len(x)==3:
... print x
...
[1, 2, 3]
[8, 9, 10]
or if you need more pythonic use list-comprehensions
>>> [x for x in mylist if len(x)==3]
[[1, 2, 3], [8, 9, 1...
ipython notebook clear cell output in code
...utput of a cell.
from IPython.display import clear_output
for i in range(10):
clear_output(wait=True)
print("Hello World!")
At the end of this loop you will only see one Hello World!.
Without a code example it's not easy to give you working code. Probably buffering the latest n events i...
String.Empty versus “” [duplicate]
...
answered May 25 '10 at 14:06
Michael Myers♦Michael Myers
173k4040 gold badges273273 silver badges288288 bronze badges
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Is there an R function for finding the index of an element in a vector?
...
The function match works on vectors :
x <- sample(1:10)
x
# [1] 4 5 9 3 8 1 6 10 7 2
match(c(4,8),x)
# [1] 1 5
match only returns the first encounter of a match, as you requested. It returns the position in the second argument of the values in the first argument.
F...
How can I check if a checkbox is checked?
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answered Mar 27 '12 at 10:09
PranavPranav
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Android: Background Image Size (in Pixel) which Support All Devices
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10
XX should be 2x HDPI
– LarryBud
Dec 23 '13 at 19:39
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Stop execution of Ruby script
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103
Either abort or exit will help.
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Bundle ID Suffix? What is it?
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answered Aug 29 '10 at 22:00
Nikolay FrickNikolay Frick
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Are “elseif” and “else if” completely synonymous?
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edited Sep 7 '10 at 20:40
answered Sep 7 '10 at 20:25
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How can I search (case-insensitive) in a column using LIKE wildcard?
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answered May 20 '10 at 18:44
QuassnoiQuassnoi
369k8181 gold badges571571 silver badges582582 bronze badges
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