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Using sed, how do you print the first 'N' characters of a line?
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answered Feb 11 '09 at 20:42
Paul TomblinPaul Tomblin
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Convert the values in a column into row names in an existing data frame
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As of 2016 you can also use the tidyverse.
library(tidyverse)
samp %>% remove_rownames %>% column_to_rownames(var="names")
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PHP - add item to beginning of associative array [duplicate]
...test and tell us.
– Vael Victus
Aug 20 '13 at 20:49
1
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Get connection string from App.config
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answered Jun 30 '11 at 20:58
DuffpDuffp
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What to use now Google News API is deprecated? [closed]
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answered Oct 20 '11 at 0:06
nambrotnambrot
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Python: Fetch first 10 results from a list [duplicate]
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check this
list = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20]
list[0:10]
Outputs:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
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Loop through list with both content and index [duplicate]
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Use enumerate():
>>> S = [1,30,20,30,2]
>>> for index, elem in enumerate(S):
print(index, elem)
(0, 1)
(1, 30)
(2, 20)
(3, 30)
(4, 2)
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jQuery select2 get value of select tag?
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answered Sep 5 '16 at 20:20
Johny PieJohny Pie
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Why can a function modify some arguments as perceived by the caller, but not others?
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– user17670
Sep 26 '15 at 20:55
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@user17670: x = [] in f() has no effect on the list x...
The 3 different equals
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– stloc
Jan 8 '16 at 9:20
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@stloc, === with objects tells you if they are the same ...