Hello R users!
I like to use cat in a loop. I know, loops are not the best way in R ... but
my question: It is possible to overwrite the expression "Reading row:
i" in
each iteration of the loop (print out in the below loop on the screen) or
more particulary to overwrite the counter "i".
for(i in 1:header$M){
cat("Reading row: ", i)
SparseIndex[[i]] <- readBin( con, integer(), n=MIndexNumber[i], size=4 )
SparseSignal[[i]] <- readBin( con, numeric(), n=MIndexNumber[i], size=4 )
}
Many thanks
J?rn Schulz.
--
View this message in context:
http://www.nabble.com/cat-and-positioning-of-the-output-tf1869521.html#a5109359
Sent from the R help forum at Nabble.com.
On Windows XP this works for me:
for(i in 1:3) { if (i > 1) cat("\b"); cat(i); flush.console();
Sys.sleep(1) }; cat("\n")
It displays 1, then it overwrites it with 2 and then overwrites that with 3.
On 6/29/06, J?rn Schulz <noah78 at web.de> wrote:>
> Hello R users!
>
> I like to use cat in a loop. I know, loops are not the best way in R ...
but
> my question: It is possible to overwrite the expression "Reading row:
i" in
> each iteration of the loop (print out in the below loop on the screen) or
> more particulary to overwrite the counter "i".
>
> for(i in 1:header$M){
> cat("Reading row: ", i)
> SparseIndex[[i]] <- readBin( con, integer(), n=MIndexNumber[i], size=4
)
> SparseSignal[[i]] <- readBin( con, numeric(), n=MIndexNumber[i],
size=4 )
> }
>
> Many thanks
> J?rn Schulz.
> --
> View this message in context:
http://www.nabble.com/cat-and-positioning-of-the-output-tf1869521.html#a5109359
> Sent from the R help forum at Nabble.com.
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html
>
=?ANSI_X3.4-1968?Q?J=3Frn_Schulz?= wrote:> Hello R users! > > I like to use cat in a loop. I know, loops are not the best way in R ... but > my question: It is possible to overwrite the expression "Reading row: i" in > each iteration of the loop (print out in the below loop on the screen) or > more particulary to overwrite the counter "i".In package svMisc (SciViews bundle): > ?progress > example(progress) Best, Philippe Grosjean> for(i in 1:header$M){ > cat("Reading row: ", i) > SparseIndex[[i]] <- readBin( con, integer(), n=MIndexNumber[i], size=4 ) > SparseSignal[[i]] <- readBin( con, numeric(), n=MIndexNumber[i], size=4 ) > } > > Many thanks > J?rn Schulz.
=?ANSI_X3.4-1968?Q?J=3Frn_Schulz?= wrote:> Hello R users! > > I like to use cat in a loop. I know, loops are not the best way in R ... but > my question: It is possible to overwrite the expression "Reading row: i" in > each iteration of the loop (print out in the below loop on the screen) or > more particulary to overwrite the counter "i". > > for(i in 1:header$M){ > cat("Reading row: ", i) > SparseIndex[[i]] <- readBin( con, integer(), n=MIndexNumber[i], size=4 ) > SparseSignal[[i]] <- readBin( con, numeric(), n=MIndexNumber[i], size=4 ) > } > > Many thanks > J?rn Schulz. >On a UNIX terminal, adding '\r' will cause the cursor to go back to the beginning of the same line. I can't speak for Windows. e.g. for ( i in 1:10 ) { cat("Number",i,"\r"); Sys.sleep(1) }; cat("\n") -Dan -- Dan Gunter. voice:510-495-2504 fax:510-486-6363 dsd.lbl.gov/~dang