Displaying 4 results from an estimated 4 matches for "rawconnectionvalue".
2025 Jan 31
0
Compression data to variable using gzcon
...quot;w"?.
> Use a writable ?rawConnection? to compress data into a variable.
But I can't seem to get this to work:
> data <- as.raw(sample(0:255, 100))
> con <- rawConnection(raw(0), "wb")
> zz <- gzcon(con)
> writeBin(data, zz)
> val <- rawConnectionValue(con)
Error in rawConnectionValue(con) :
internal connection is not a rawConnection
The documentation of gzcon does mention that the original connection
becomes unusable. Ok, so this error is to be expected. But how do I get
to the compressed data?
As I mentioned memCompress(data) does what I...
2014 Feb 04
0
capture.output(): Using a rawConnection() [linear] instead of textConnection() [exponential]?
...lose(file)
rval
}, envir=envir)
} # captureViaText()
captureViaRaw <- function(..., local=TRUE, envir=parent.frame()) {
eval({
# Basically what capture.output() does by default
file <- rawConnection(raw(0L), open="w")
capture.output(..., file=file)
res <- rawConnectionValue(file)
close(file)
res <- rawToChar(res)
res <- unlist(strsplit(res, split="\n", fixed=TRUE))
res
}, envir=envir)
} # captureViaRaw()
data <- data.frame(size=10^seq(from=3, to=7.9, by=0.1),
captureViaText=NA, captureViaRaw=NA)
names <- colnames(data)[-1]
for...
2008 Oct 20
2
R 2.8.0 is released
...ts for univariate
t-statistics rather than a confidence region for all the
parameters (and not just those being profiled).
o quantile.default() allows 'probs' to stray just beyond [0, 1],
to allow for computed values.
o New functions rawConnection() and rawConnectionValue() allow
raw vectors to be treated as connections.
o read.dcf() now consistently gives an error for malformed DCF.
o read.fwf() no longer passes its default for 'as.is' to
read.table(): this allows the latter's default to be used.
o readBin(), writeBi...
2008 Oct 20
2
R 2.8.0 is released
...ts for univariate
t-statistics rather than a confidence region for all the
parameters (and not just those being profiled).
o quantile.default() allows 'probs' to stray just beyond [0, 1],
to allow for computed values.
o New functions rawConnection() and rawConnectionValue() allow
raw vectors to be treated as connections.
o read.dcf() now consistently gives an error for malformed DCF.
o read.fwf() no longer passes its default for 'as.is' to
read.table(): this allows the latter's default to be used.
o readBin(), writeBi...