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For each row return the column name of the largest value
...ample 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 any of "rando...
How to check an Android device is HDPI screen or MDPI screen?
...'s HDPI
// return 2.0 if it's XHDPI
// return 3.0 if it's XXHDPI
// return 4.0 if it's XXXHDPI
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Does Swift support reflection?
...ple"
From mchambers gist, here:
https://gist.github.com/mchambers/fb9da554898dae3e54f2
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Most concise way to convert a Set to a List
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436
List<String> list = new ArrayList<String>(listOfTopicAuthors);
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What happens to git commits created in a detached HEAD state?
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answered Apr 2 '12 at 21:40
Dietrich EppDietrich Epp
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Bash empty array expansion with `set -u`
...]+"${arr[@]}"} (column +"). Of note, several other expansions fail in Bash 4.2, including (unfortunately) the shorter ${arr[@]:0} idiom, which doesn't just produce an incorrect result but actually fails. If you need to support versions prior to 4.4, and in particular 4.2, this is the only working id...
Version of SQLite used in Android?
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UPDATE OCT 2016: Here is a link to the updated official docs which includes the main points in...
How do I check if a number is positive or negative in C#?
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juancazalla
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answered Nov 4 '10 at 17:25
Simon FischerSimon Fischer
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Force LF eol in git repo and working copy
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answered Apr 2 '12 at 14:05
nulltokennulltoken
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DateTime.ToString(“MM/dd/yyyy HH:mm:ss.fff”) resulted in something like “09/14/2013 07.20.31.371”
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Is it because some culture format issue?
Yes. Your user must be in a culture where the tim...