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How to thoroughly purge and reinstall postgresql on ubuntu? [closed]
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461
Option A
If your install isn't already damaged, you can drop unwanted PostgreSQL servers ("clus...
Shuffle two list at once with same order
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211
You can do it as:
import random
a = ['a', 'b', 'c']
b = [1, 2, 3]
c = list(zip(a, b))
rando...
How to initialize all the elements of an array to any specific value in java
...l the elements to a specific value? Whenever we write int[] array=new int[10]; , this simply initialize an array of size 10 having all elements equal to zero. I just want to change this initialization integer for one of my array. i.e. I want to initialize an array which has all elements equal to ...
What are the aspect ratios for all Android phone and tablet devices?
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162
In case anyone wanted more of a visual reference:
Decimal approximations reference table:
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How to add texture to fill colors in ggplot2
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edited Dec 27 '17 at 15:36
Claus Wilke
12.6k44 gold badges3636 silver badges7070 bronze badges
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Assign multiple columns using := in data.table, by group
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162
This now works in v1.8.3 on R-Forge. Thanks for highlighting it!
x <- data.table(a = 1:3, ...
sed: print only matching group
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140
Match the whole line, so add a .* at the beginning of your regex. This causes the entire line ...
How to split a long regular expression into multiple lines in JavaScript?
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11 Answers
11
Active
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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...