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Why doesn't list have safe “get” method like dictionary?
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Setting direction for UISwipeGestureRecognizer
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Uninstall old versions of Ruby gems
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edited Dec 28 '13 at 23:39
Steven Penny
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Speed up the loop operation in R
...possible. I took your function, change indexing and here version_A
dayloop2_A <- function(temp){
res <- numeric(nrow(temp))
for (i in 1:nrow(temp)){
res[i] <- i
if (i > 1) {
if ((temp[i,6] == temp[i-1,6]) & (temp[i,3] == temp[i-1,...
Error “The connection to adb is down, and a severe error has occurred.”
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What does the (unary) * operator do in this Ruby code?
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The * is the splat operator.
It expands an Array into a list of arguments, in this case a lis...
How to delete a folder with files using Java
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How to change language settings in R
...l set it to French and then back again:
> Sys.setenv(LANG = "fr")
> 2 + x
Erreur : objet 'x' introuvable
> Sys.setenv(LANG = "en")
> 2 + x
Error: object 'x' not found
A list of the abbreviations can be found here.
Sys.getenv() gives you a list of all the environment variables that ar...