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Pythonic way to find maximum value and its index in a list?
...rdsforthewise
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answered May 31 '11 at 21:03
Sven MarnachSven Marnach
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How can I pretty-print JSON using node.js?
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JSON.stringify's third parameter defines white-space insertion for pretty-printing. It can be ...
How to use regex in String.contains() method in Java
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answered Feb 28 '13 at 8:01
nhahtdhnhahtdh
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How does numpy.histogram() work?
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You may also be interested in this answer if you want to plot them. Matplotlib can also calculate them directly. See examples here and here....
Linux find file names with given string
... ] would be a bit better.
– Joe
Oct 8 '15 at 8:58
@Joe Ah, right. You mean in case a path has spaces? But here we only...
Assign multiple columns using := in data.table, by group
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This now works in v1.8.3 on R-Forge. Thanks for highlighting it!
x <- data.table(a = 1:3, b = 1:6)
f <- function(x) {list("hi", "hello")}
x[ , c("col1", "col2") := f(), by = a][]
# a b col1 col2
# 1: 1 1 hi hello
# 2: 2 2 hi hell...
How to git clone a specific tag
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Erik SaunierErik Saunier
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Why does X[Y] join of data.tables not allow a full outer join, or a left join?
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edited Jan 4 '19 at 12:48
Henrik
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answere...
Java: function for arrays like PHP's join()?
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Starting from Java8 it is possible to use String.join().
String.join(", ", new String[]{"Hello", "World", "!"})
Generates:
Hello, World, !
Otherwise, Apache Commons Lang has a StringUtils class which has a join function which will join a...
How to remove all rows in a numpy.ndarray that contain non-numeric values
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>>> a = np.array([[1,2,3], [4,5,np.nan], [7,8,9]])
array([[ 1., 2., 3.],
[ 4., 5., nan],
[ 7., 8., 9.]])
>>> a[~np.isnan(a).any(axis=1)]
array([[ 1., 2., 3.],
[ 7., 8., 9.]])
and reassign this to a.
Explanation: np.is...