search for: ruihong

Hi, In my memory, "<<-" means assigning via a pointer or alias. But this is not officially defined in "R Language Definition". Could anybody help for the clarification? Thank you very much! Bests, Ruihong

Hi, I'm using the Sweave and I would like include codes of the R in my LaTeX file. I extracts the R code with Stangle (), whose name is Relatorio.R but I can't include it in the Latex file as an appendix. Suggests? Thanks, -------------------------------------- Silvano Cesar da Costa Departamento de Estat?stica Universidade Estadual de Londrina Fone: 3371-4346

...m" is much slower than the MATLAB "fmincon" function. I don't know MATLAB has done any pre-compilation on the script for object function or not. But perhaps, we can increase R performance by some sort of pre-compilation during running time. Thanks in advance. Best Regards, Ruihong

...erent distributions (Greg Snow) 83. Re: Agreement (Tobias Verbeke) 84. Error when invoking x11() (Alex Chelminsky) 85. Re: Avoiding for-loop for splitting vector into subvectors based on positions (Joris Meys) 86. Two Questions on R (call by reference and pre-compilation) (Ruihong Huang) 87. timing a function (pdb) 88. Re: timing a function (mohamed.lajnef at inserm.fr) 89. Re: R formula language---a min and max function? (ivo welch) 90. Re: timing a function (Joris Meys) 91. Re: R formula language---a min and max function? (David Winsemius) 92. Re: Lazy evaluati...

Hi r-users,   I would like to overlap a smooth line on the histogram.  I tried using spline but it does not work. sq     <- seq(0,900,by=50) sq.50  <- as.character(sq) datobs <- sum_pos ## first, plot histogram histo <- hist(datobs,breaks=sq,freq=F) ## extract counts from histogram and calculate the probability in ## each specified interval. Also check the length of the interval is

Hi, I'm trying to read in a bunch of CSV files into R where many columns are coded like $111.11. When reading them in they are treated as factors. I'm wondering if there is an easy way to convert them into numeric in R (as I don't want to modify the source data)? I've done some searches and can't seem to find an easy way to do this. I apologise if this is a trivial

---------- Forwarded message ---------- From: Dr. Venkatesh <drvenki at liv.ac.uk> Date: Sun, May 9, 2010 at 4:55 AM Subject: R apply() help -urgent To: r-help at r-project.org I have a file with 4873 rows of 1s or 0s and has 26 alphabets (A-Z) as columns. the 27th column also has 1s and 0s but stands for a different variable (pLoss). columns 1 and 2 are not significant and hence lets