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How does numpy.histogram() work?
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A bin is range that represents the width of a single bar of the histogram along the X-axis. Yo...
What are the differences between json and simplejson Python modules?
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Index all *except* one item in python
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For a list, you could use a list comp. For example, to make b a copy of a without the 3rd ele...
Pass a data.frame column name to a function
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You can just use the column name directly:
df <- data.frame(A=1:10, B=2:11, C=3:12)
fun1 &...
Find the max of two or more columns with pandas
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You can get the maximum like this:
>>> import pandas as pd
>>> df = pd.Data...
Find XOR of all numbers in a given range
...u are given a large range [a,b] where 'a' and 'b' can be typically between 1 and 4,000,000,000 inclusive. You have to find out the XOR of all the numbers in the given range.
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Get the cartesian product of a series of lists?
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Why does direction of index matter in MongoDB?
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MongoDB concatenates the compound key in some way and uses it as the key in a BTree.
When fin...
How to return a part of an array in Ruby?
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Yes, Ruby has very similar array-slicing syntax to Python. Here is the ri documentation for th...
Convert a row of a data frame to vector
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When you extract a single row from a data frame you get a one-row data frame. Convert it to a...