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Dear list, I often need to convert several variables from numeric or integer into factors (before plotting, for instance), as in the following example, d <- data.frame( x = seq(1, 10), y = seq(1, 10), z = rnorm(10), a = letters[1:10]) d2 <- within(d, { x = factor(x) y = factor(y) }) str(d) str(d2) I'd like to write a function factorise() which takes a data.frame and

Hi, In our server CentOS 5 is installed. Some of our web pages are compatible with php4 but in centOS 5 , php5 is installed and we cannot see our pages. I want to remove php5 and install php4 but i could not find php4 rpm for CentOS 5. Can anybody help me? Thanks Can ?izer -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20071018/a5b9237f/attachment-0004.html>

Hi, A fairly basic problem I think, here although searching the inetrnet doesn't seem to reveal a solution. I have a dataset with two columns of real numbers. It is read in via read.table. I simply need to square the data in the second column and then plot it. I have tried extracting the second column (b <- z[2]) and then squaring it and merging it to a variable which is the first column

Hi R-helpers, I have a dataframe with 60columns and I would like to convert several columns to factor, others to numeric, and yet others to dates. Rather than having 60 lines like this: data$Var1<-as.factor(data$Var1) I wonder if it's possible to write one line of code (per data type, e.g. factor) that would apply a function (e.g., as.factor) to several (non-contiguous) columns. So, I

...Archit Taneja <a0393947@ti.com> # DSS Archit Taneja <archit@ti.com> Ard Biesheuvel <ard.biesheuvel@linaro.org> Arend van Spriel <arend@broadcom.com> Ariane Keller <ariane.keller@tik.ee.ethz.ch> Ariel Elior <ariele@broadcom.com> Arik Nemtsov <arik@wizery.com> Arindam Nath <arindam.nath@amd.com> Aristeu Rozanski <aris@redhat.com> Arjan van de Ven <arjan@linux.intel.com> Arkadiusz Miskiewicz <a.miskiewicz@gmail.com> Arkadiusz Miskiewicz <arekm@maven.pl> Arkady Miasnikov <a-miasnikov@ti.com> Armand...

...Archit Taneja <a0393947@ti.com> # DSS Archit Taneja <archit@ti.com> Ard Biesheuvel <ard.biesheuvel@linaro.org> Arend van Spriel <arend@broadcom.com> Ariane Keller <ariane.keller@tik.ee.ethz.ch> Ariel Elior <ariele@broadcom.com> Arik Nemtsov <arik@wizery.com> Arindam Nath <arindam.nath@amd.com> Aristeu Rozanski <aris@redhat.com> Arjan van de Ven <arjan@linux.intel.com> Arkadiusz Miskiewicz <a.miskiewicz@gmail.com> Arkadiusz Miskiewicz <arekm@maven.pl> Arkady Miasnikov <a-miasnikov@ti.com> Armand...