It is unclear what you are trying to do, but check bin2raw in caTools package:
> print(x <- (1:5)*pi) [1] 3.141593 6.283185 9.424778 12.566371 [5] 15.707963 > print(y <- bin2raw(x)) [1] 18 2d 44 54 fb 21 09 40 18 2d 44 54 fb 21 19 [16] 40 d2 21 33 7f 7c d9 22 40 18 2d 44 54 fb 21 [31] 29 40 5e 38 55 29 7a 6a 2f 40 > print(z <- raw2bin(y,"double")) [1] 3.141593 6.283185 9.424778 12.566371 [5] 15.707963 May be that is what you need. Jarek ====================================================\==== Jarek Tuszynski, PhD. o / \ Science Applications International Corporation <\__,| (703) 676-4192 "> \ [EMAIL PROTECTED] ` \ -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Haiyong Xu Sent: Saturday, October 01, 2005 4:22 PM To: Help R Subject: [R] dec2bin? Hello, I just want to ask if there is any function that can convert decimal number to binary vector. Thanks a lot. Haiyong ______________________________________________ R-help@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 ______________________________________________ R-help@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