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Ruby class types and case statements
...item
when MyClass
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I had the same problem:
How to catch Errno::ECONNRESET class in "case when"?
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How to get an array of specific “key” in multidimensional array without looping
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R programming: How do I get Euler's number?
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git branch -d gives warning
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Skip rows during csv import pandas
...he n'th line is the n'th line in the file, and not the n'th row in the dataset. I have a situation where I download some antiquated stream gauge data from the USGS. The head of the dataset is commented with '#', the first line after that are the labels, next comes a line that describes the date ty...
Using sed and grep/egrep to search and replace
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How to convert list of tuples to multiple lists?
...eturn xs, ys
if __name__ == '__main__':
from timeit import timeit
setup_string='''\
N = 2000000
xs = list(range(1, N))
ys = list(range(N+1, N*2))
zs = list(zip(xs, ys))
from __main__ import t1, t2, t3
'''
print(f'zip:\t\t{timeit('t1(zs)', setup=setup_string, number=1000)}')
print(f'...
C# Convert List to Dictionary
...hing else. If the keys and the values are always going to be the same, HashSet<String> would provide a much better fit for your situation:
var res = new HashSet<string>(list);
if (res.Contains("string1")) ...
s...
Python function overloading
...ue of speed might change in the middle of the function when another thread sets it's own value of speed)!!! It took me long time to realize that it was the library that was the culprit.
– Andriy Drozdyuk
Jan 22 '17 at 6:24
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How do I make a matrix from a list of vectors in R?
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