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Where can I get a list of Ansible pre-defined variables?
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203
Argh! From the FAQ:
How do I see a list of all of the ansible_ variables?
Ansible by default ...
Big-O for Eight Year Olds? [duplicate]
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25 Answers
25
Active
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Split comma-separated strings in a column into separate rows
...ackage (see code below).
The sample data given by the OP consists only of 20 rows. To create larger data frames, these 20 rows are simply repeated 1, 10, 100, 1000, 10000, and 100000 times which give problem sizes of up to 2 million rows.
Benchmark results
The benchmark results show that for s...
Multiprocessing: How to use Pool.map on a function defined in a class?
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edited Jun 29 at 15:46
scriptmonster
2,4791818 silver badges2727 bronze badges
answered A...
pandas: How do I split text in a column into multiple rows?
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207
+50
This sp...
How do I draw a shadow under a UIView?
...hat I should use CGContextSetShadow() to draw the shadow, but the Quartz 2D programming guide is a little vague:
16 Answe...
Redirecting Output from within Batch file
...r to End-Of-File multiple times.
@echo off
command1 >output.txt
command2 >>output.txt
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commandN >>output.txt
A better way - easier to write, and faster because the file is opened and positioned only once.
@echo off
>output.txt (
command1
command2
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commandN
)
Ano...
How do I get bit-by-bit data from an integer value in C?
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edited Jan 9 '16 at 4:21
Ashish Ahuja
4,70099 gold badges4343 silver badges6161 bronze badges
answer...
Ternary operator is twice as slow as an if-else block?
...duced by the X86 and X64 JITs for each of these cases.
X86, if/then
32: foreach (int i in array)
0000007c 33 D2 xor edx,edx
0000007e 83 7E 04 00 cmp dword ptr [esi+4],0
00000082 7E 1C jle 000000A0
00000084 8B 44 ...
How to count the number of true elements in a NumPy bool array
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265
You have multiple options. Two options are the following.
numpy.sum(boolarr)
numpy.count_nonz...