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Using async/await for multiple tasks
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591
int[] ids = new[] { 1, 2, 3, 4, 5 };
Parallel.ForEach(ids, i => DoSomething(1, i, blogClient)...
Pass a data.frame column name to a function
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109
You can just use the column name directly:
df <- data.frame(A=1:10, B=2:11, C=3:12)
fun1 &...
What do the numbers in a version typically represent (i.e. v1.9.0.1)?
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In version 1.9.0.1:
1: Major revision (new UI, lots of new features, conceptual change, etc.)
9: Minor revision (maybe a change to a search box, 1 feature added, collection of bug fixes)
0: Bug fix release
1: Build number (if used)—...
SQL statement to select all rows from previous day
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11 Answers
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Validating parameters to a Bash script
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10 Answers
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How do I iterate through each element in an n-dimensional matrix in MATLAB?
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You can use linear indexing to access each element.
for idx = 1:numel(array)
element = array(idx)
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end
This is useful if you don't need to know what i,j,k, you are at. However, if you don't need to know what index you are at, you are probably better off using arrayfun()
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Shortest distance between a point and a line segment
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How to calculate cumulative normal distribution?
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Here's an example:
>>> from scipy.stats import norm
>>> norm.cdf(1.96)
0.97...