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How to do a LIKE query in Arel and Rails?
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edited Feb 15 '16 at 17:11
answered Aug 10 '11 at 14:46
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Define all functions in one .R file, call them from another .R file. How, if possible?
...s will work:
> source("abc.R")
> source("xyz.R")
> fooXYZ(3)
[1] 5
>
Even if there are cyclical dependencies, this will work.
E.g. If abc.R is this:
fooABC <- function(x) {
k <- barXYZ(x)+1
return(k)
}
barABC <- function(x){
k <- x+30
return(k)
}
and...
Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?
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5 Answers
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Which data type for latitude and longitude?
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5
I would not recommend using the float datatype. It makes calculation with the coordinates very complicated. You should use PostGIS and the g...
Does Qt support virtual pure slots?
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edited Mar 25 '18 at 12:41
llllllllll
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Minimum and maximum date
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From the spec, §15.9.1.1:
A Date object contains a Number indicating a particular instant in time to within a millisecond. Such a Number is called a time value. A time value may also be NaN, indicating that the Date object does not represent...
How do .gitignore exclusion rules actually work?
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5 Answers
5
Active
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Can extension methods be applied to interfaces?
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answered May 5 '10 at 2:58
AaronaughtAaronaught
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How to do multiple line editing?
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edited Feb 27 '12 at 7:58
answered Feb 27 '12 at 6:35
Ha...