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Bash conditionals: how to “and” expressions? (if [ ! -z $VAR && -e $VAR ])
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Since POSIX doesn't define the behavior of [ with complex sets of tests, we should avoid using -a or -o with [. I read it here.
– jaypal singh
Jan 19 '12 at 2:35
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For each row return the column name of the largest value
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One option using your data (for future reference, use set.seed() to make examples 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:
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Can you make just part of a regex case-insensitive?
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Print function log /stack trace for entire program using firebug
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jQuery append() vs appendChild()
...ation on append method
Quoting MDN
The ParentNode.append method inserts a set of Node objects or DOMString objects after the last child of the ParentNode. DOMString objects are inserted as equivalent Text nodes.
This is not supported by IE and Edge but supported by Chrome(54+), Firefox(49+) and Op...
How to implement “select all” check box in HTML?
...than hard-coding the name and making the function specific to a particular set of checkboxes.
– ADTC
Apr 2 '16 at 4:39
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Build query string for System.Net.HttpClient get
...tring instead of all that, but only if you change an app.config/web.config setting that prevents ASP.NET from using the '%uXXXX' encoding: <add key="aspnet:DontUsePercentUUrlEncoding" value="true" />. I wouldn't depend on this behavior, so it's better to use the FormUrlEncodedContent class, a...
Sorting 1 million 8-decimal-digit numbers with 1 MB of RAM
...M in the following way:
First take 2 variables: COUNTER and VALUE.
First set all registers to 0;
Every time you receive an integer I, increment COUNTER and set VALUE to max(VALUE, I);
Then send an ICMP echo request packet with data set to I to the router. Erase I and repeat.
Every time you receive...
Why no generics in Go?
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How do I detect a click outside an element?
...e some HTML menus, which I show completely when a user clicks on the head of these menus. I would like to hide these elements when the user clicks outside the menus' area.
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