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Pandas index column title or name
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In [8]: df.index.name = 'foo'
In [9]: df.index.name
Out[9]: 'foo'
In [10]: df
Out[10]:
Column 1
foo
Apples 1
Oranges 2
Puppies 3
Ducks 4
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What does -1 mean in numpy reshape?
...atrix can be reshaped into a vector using reshape function with parameter -1. But I don't know what -1 means here.
9 Answer...
Expand a random range from 1–5 to 1–7
Given a function which produces a random integer in the range 1 to 5, write a function which produces a random integer in the range 1 to 7.
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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, ...
How to drop columns by name in a data frame
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11 Answers
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How to iterate for loop in reverse order in swift?
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14 Answers
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Understanding how recursive functions work
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18 Answers
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How to add multiple files to Git at the same time
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124
To add all the changes you've made:
git add .
To commit them:
git commit -m "MY MESSAGE HER...
How to get first and last day of previous month (with timestamp) in SQL Server
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13 Answers
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Split a vector into chunks in R
... is seq_along(), split() and ceiling():
> d <- rpois(73,5)
> d
[1] 3 1 11 4 1 2 3 2 4 10 10 2 7 4 6 6 2 1 1 2 3 8 3 10 7 4
[27] 3 4 4 1 1 7 2 4 6 0 5 7 4 6 8 4 7 12 4 6 8 4 2 7 6 5
[53] 4 5 4 5 5 8 7 7 7 6 2 4 3 3 8 11 6 6 1...