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How to set data attributes in HTML elements
I have a div with an attribute data-myval = "10" . I want to update its value; wouldn't it change if I use div.data('myval',20) ? Do I need to use div.attr('data-myval','20') only?
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How do I create test and train samples from one dataframe with pandas?
... would just use numpy's randn:
In [11]: df = pd.DataFrame(np.random.randn(100, 2))
In [12]: 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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Which is faster/best? SELECT * or SELECT column1, colum2, column3, etc
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edited Jun 4 '10 at 12:40
scunliffe
55.5k2323 gold badges116116 silver badges153153 bronze badges
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#ifdef replacement in the Swift language
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1091
Yes you can do it.
In Swift you can still use the "#if/#else/#endif" preprocessor macros (al...
PostgreSQL: Is it better to use multiple databases with one schema each, or one database with multip
...owLowRepImageUploadWarning: true,
reputationToPostImages: 10,
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postfix: "",
imageUploader: {
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Canary release strategy vs. Blue/Green
...ve Schweisguth
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Dynamically update values of a chartjs chart
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101
Update: Looks like chartjs has been updated (see comment below). There are some examples up t...
check if a std::vector contains a certain object? [duplicate]
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answered Aug 10 '10 at 15:57
YouYou
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How do I set default terminal to terminator? [closed]
...mode
– Running Turtle
May 29 '13 at 10:12
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How to determine if binary tree is balanced?
...4
RBT
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answered Feb 1 '10 at 16:33
Eric LippertEric...