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How to return a string value from a Bash function
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PhilippPhilipp
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Why does NULL = NULL evaluate to false in SQL server
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4
Since it's December, let's use a seasonal example. I have two presents under the tree. Now, you tell me if I got two of the same thing or no...
Why declare a struct that only contains an array in C?
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184
It allows you to pass the array to a function by value, or get it returned by value from a funct...
How do I combine two data-frames based on two columns? [duplicate]
...final example given in the documentation:
x <- data.frame(k1=c(NA,NA,3,4,5), k2=c(1,NA,NA,4,5), data=1:5)
y <- data.frame(k1=c(NA,2,NA,4,5), k2=c(NA,NA,3,4,5), data=1:5)
merge(x, y, by=c("k1","k2")) # NA's match
This example was meant to demonstrate the use of incomparables, but it illustra...
Conditionally Remove Dataframe Rows with R [duplicate]
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answered Nov 4 '11 at 9:04
mbqmbq
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Force CloudFront distribution/file update
... James LawrukJames Lawruk
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push multiple elements to array
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edited Apr 12 '14 at 18:26
answered Feb 6 '13 at 7:41
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Rails :include vs. :joins
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edited Dec 10 '14 at 19:26
pjam
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Redirect Windows cmd stdout and stderr to a single file
... Abel
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answered Sep 14 '09 at 11:23
Anders LindahlAnders Lindahl
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