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How to make a great R reproducible example
...used for making factors.
A few examples :
random values : x <- rnorm(10) for normal distribution, x <- runif(10) for uniform distribution, ...
a permutation of some values : x <- sample(1:10) for vector 1:10 in random order.
a random factor : x <- sample(letters[1:4], 20, replace = TR...
Regular expression for a hexadecimal number?
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answered Feb 10 '12 at 1:10
Steven SchroederSteven Schroeder
4,72611 gold badge1818 silver badges1515 bronze badges
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How to see which flags -march=native will activate?
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10
I'm going to suggest that this is suboptimal. The output of --help=target doesn't display CPU cache information, of which the methods both ...
How can I check for “undefined” in JavaScript? [duplicate]
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answered Aug 2 '10 at 17:58
AnuragAnurag
129k3333 gold badges210210 silver badges253253 bronze badges
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How do I convert a Ruby class name to a underscore-delimited symbol?
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edited Jun 28 '19 at 10:43
answered Sep 3 '14 at 9:09
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Store query result in a variable using in PL/pgSQL
...referable.
– Erwin Brandstetter
Sep 10 '12 at 17:24
Actually i do prefere your syntax, but the problem is when you wan...
Gradle, “sourceCompatibility” vs “targetCompatibility”?
...tools/… ?
– Brian Agnew
Feb 11 at 10:09
add a comment
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Filtering a list based on a list of booleans
...True, False, True, False]
>>> %timeit list(compress(list_a, fil))
100000 loops, best of 3: 2.58 us per loop
>>> %timeit [i for (i, v) in zip(list_a, fil) if v] #winner
100000 loops, best of 3: 1.98 us per loop
>>> list_a = [1, 2, 4, 6]*100
>>> fil = [True, False...
What is your single most favorite command-line trick using Bash? [closed]
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105 Answers
105
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No Main() in WPF?
...s necessary). Look in obj/debug for an app file; I have (courtesy of "C# 2010 Express") App.g.i.cs with:
namespace WpfApplication1 {
/// <summary>
/// App
/// </summary>
[System.CodeDom.Compiler.GeneratedCodeAttribute("PresentationBuildTasks", "4.0.0.0")]
public pa...