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How to get a specific “commit” of a gem from github?
...m 'rails', :git => 'git://github.com/rails/rails.git', :tag => 'v2.3.5'
Source: How to install gems from git repositories
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For each row return the column name of the largest value
...ples using sample reproducible):
DF <- data.frame(V1=c(2,8,1),V2=c(7,3,5),V3=c(9,6,4))
colnames(DF)[apply(DF,1,which.max)]
[1] "V3" "V1" "V2"
A faster solution than using apply might be max.col:
colnames(DF)[max.col(DF,ties.method="first")]
#[1] "V3" "V1" "V2"
...where ties.method can be a...
Is there XNOR (Logical biconditional) operator in C#?
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252
XNOR is simply equality on booleans; use A == B.
This is an easy thing to miss, since equality...
Member initialization while using delegated constructor
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edited Aug 30 '12 at 5:34
answered Aug 30 '12 at 4:55
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SQL Server IIF vs CASE
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edited Nov 21 '14 at 4:54
answered Apr 3 '14 at 13:39
Ka...
Reactive Extensions bug on Windows Phone
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+50
_t1.Foo<type>(type);
You are missing the type declaration. The compiler is guessing (and guessing wrong). Strictly type ever...
Building C# Solution in Release mode using MSBuild.exe
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251
MsBuild.exe [Path to your solution(*.sln)] /t:Build /p:Configuration=Release /p:TargetFramework...
Razor ViewEngine: How do I escape the “@” symbol?
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edited Aug 15 '17 at 2:05
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open-ended function arguments with TypeScript
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275
The TypeScript way of doing this is to place the ellipsis operator (...) before the name of the ...