On 25/09/2008 4:22 PM, Jason Thibodeau wrote:
This is almost doing what I want.
here is a snippet of my code, which is writing the x coordinate (converted
to binary), and the y coordinate to a file. The major problem at this point:
the paces between each digit in the cat. What is causing this?
cat() adds a space between the things it outputs. If you put sep=""
you'll lose the space (or you could use collapse="" in the paste).
To reduce the number of bits to 17, just index the first 17 bits that
intToBits gives you, or the last ones after the rev.
For example,
> x <- 123
> paste(rev(as.integer(intToBits(as.integer(x))[1:17])), collapse="")
[1] "00000000001111011"
code:
sink("generated.txt", append = TRUE)
cat(paste(rev(as.integer(intToBits(as.integer(input[xpointer,1]))))))
output:
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0,0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1,0.0998004
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0,0.1996008
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1,0.2994012
Thanks so much for the help, you all are life savers!
On Thu, Sep 25, 2008 at 4:11 PM, Jason Thibodeau <[EMAIL PROTECTED]>wrote:
This seems to work well. After playing with it for a while, however, I
can't seem to find a way to fix the number of binary digits to say, 17. Am I
just missing something, or am I getting lost in the type conversion?
The help page for intToBits said parameter n, and I tried that to no avail.
On Thu, Sep 25, 2008 at 3:56 PM, Duncan Murdoch <[EMAIL PROTECTED]>wrote:
On 9/25/2008 3:33 PM, Jason Thibodeau wrote:
Hello,
Is there a simple way to take an input, and convert the decimal integers
to
binary? In this case, I have a CSV file, and I need to convert the first
column of every line to binary.
Yes, the intToBits function does what you want. It works with raw vector
output and integer vector input, so you need a few type conversions, but
essentially this is simple:
x <- 123
paste(rev(as.integer(intToBits(as.integer(x)))), collapse="")
[1] "00000000000000000000000001111011"
Duncan Murdoch
--
Jason Thibodeau
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
