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Why is iterating through a large Django QuerySet consuming massive amounts of memory?
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answered Nov 19 '10 at 5:44
eternicodeeternicode
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How do I create test and train samples from one dataframe with pandas?
...2]: msk = np.random.rand(len(df)) < 0.8
In [13]: train = df[msk]
In [14]: test = df[~msk]
And just to see this has worked:
In [15]: len(test)
Out[15]: 21
In [16]: len(train)
Out[16]: 79
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Explanation of BASE terminology
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answered Aug 1 '10 at 13:48
Niels van der RestNiels van der Rest
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How to make “if not true condition”?
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473
try
if ! grep -q sysa /etc/passwd ; then
grep returns true if it finds the search target, a...
Force browser to download image files on click
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14 Answers
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“Single-page” JS websites and SEO
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44
While #2 might be "easier" for you as a developer, it only provides search engine crawling. And...
Library not loaded: /usr/local/opt/readline/lib/libreadline.6.2.dylib
...ing brew
– guyarad
Nov 28 '16 at 8:14
6
Be careful doing this if you aren't already on the latest...
Uploading images using Node.js, Express, and Mongoose
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I'll answer my own question for the first time. I found an example straight from the source. P...
Long vs Integer, long vs int, what to use and when?
...bject form of long, and Integer is the object form of int.
The long uses 64 bits. The int uses 32 bits, and so can only hold numbers up to ±2 billion (-231 to +231-1).
You should use long and int, except where you need to make use of methods inherited from Object, such as hashcode. Java.util.coll...
Child inside parent with min-height: 100% not inheriting height
...bsolute positioning.
See http://jsfiddle.net/xrebB/
Edit on April 10, 2014
Since I'm currently working on a project for which I really need parent containers with min-height, and child elements inheriting the height of the container, I did some more research.
First: I'm not so sure anymore wheth...