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pandas read_csv and filter columns with usecols
...s as pd
from StringIO import StringIO
csv = r"""dummy,date,loc,x
bar,20090101,a,1
bar,20090102,a,3
bar,20090103,a,5
bar,20090101,b,1
bar,20090102,b,3
bar,20090103,b,5"""
df = pd.read_csv(StringIO(csv),
header=0,
index_col=["date", "loc"],
usecols=["date", "loc", "x"],
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How to track down a “double free or corruption” error
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answered May 25 '10 at 8:42
HasturkunHasturkun
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Maximum concurrent Socket.IO connections
...files-limit The open file limit per process may default to a soft limit of 1024 and hard limit of 4096 and since every open TCP port represents a file, it's important to consider these limits when determining how many open sockets a machine will allow before trying to max out the library.
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Distributed sequence number generation?
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+100
OK, this is a very old question, which I'm first seeing now.
You'll need to differentiate between sequence numbers and unique IDs t...
Cannot serve WCF services in IIS on Windows 8
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Bill MoonBill Moon
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Random record from MongoDB
I am looking to get a random record from a huge (100 million record) mongodb .
26 Answers
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How can I add a class to a DOM element in JavaScript?
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10 Answers
10
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CSS Selector for
...p Dupanović
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CMake: Project structure with unit tests
...owLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\...
String was not recognized as a valid DateTime “ format dd/MM/yyyy”
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answered Feb 3 '10 at 15:27
Samuel NeffSamuel Neff
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