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Trimming a huge (3.5 GB) csv file to read into R
...rge is one pack
while(length(x)) {
ind <- grep("^[^;]*;[^;]*; 20(09|10)", x)
if (length(ind)) writeLines(x[ind], file_out)
x <- readLines(file_in, n=B)
}
close(file_in)
close(file_out)
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Library not loaded: libmysqlclient.16.dylib error when trying to run 'rails server' on OS X 10.6 wit
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apneadiving
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answered Dec 30 '10 at 4:57
Jonty BrookJ...
How to make PyCharm always show line numbers
...s and such...
– jsh
Jul 14 '15 at 9:10
1
I miss it too ¬¬ ... what i see is View->Active edi...
What scalability problems have you encountered using a NoSQL data store? [closed]
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answered Feb 24 '10 at 17:59
tux21btux21b
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Creating an empty list in Python
...how you can test which piece of code is faster:
% python -mtimeit "l=[]"
10000000 loops, best of 3: 0.0711 usec per loop
% python -mtimeit "l=list()"
1000000 loops, best of 3: 0.297 usec per loop
However, in practice, this initialization is most likely an extremely small part of your program, ...
Eclipse: Java, see where class is used
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10
It's the <kbd> tag.
– gustafc
Oct 1 '09 at 15:56
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Choosing a file in Python with simple Dialog
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answered Aug 26 '10 at 21:22
EtaoinEtaoin
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string.Format() giving “Input string is not in correct format”
...was null or something.
– styfle
Aug 10 '12 at 16:59
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Change default timeout for mocha
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answered May 6 '14 at 10:42
LouisLouis
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Hook up Raspberry Pi via Ethernet to laptop without router? [closed]
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