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Dear R users, I am just starting with R and am currently needing a lot of help! Sorry if I disturb you and thank you for your answers!!! Here goes my question: How do I make R reconize my date columns as dates? When I "summary" my table, the levels of my date column are completely out of order. Thank you again for this tip, Marcia -- View this message in context:

Hello R users, I have been looking through Help files and Nabble list for the answers for these simple questions, but it seems to be fruitless. 1- in a data frame with two columns, x and y, how do I get the corresponding value of x to, let's say, the minimum value of the y column (min (data$y)) ? 2- how do I solve a simple equation? Considering the equation y= exp(-x)^12, I would like to find

Hello R users, I have been using R for a while on xp and have just updated my system to vista. Have encountered some problems... First and main problem is that i cannot make R recognize my own written functions by coping them into the Rprofile.site on the etc folder. For some reason, this very useful tool seems not to be working anymore. Could someone help?? Any other suggestion to make R start

Dear R users, I have been having a problem since I installed the new versions of TinnR and R on my computer (1.19.4.7 and 2.6.0 respectively). I used to open R by the command "start preferred RGUI", on the "R" tab of TinnR's menu. But now, since I updated both softwares (which was necessary for some compatibility issue with Windows Vista), the path for my preferred RGui (

Dear R users, I am having a problem with the main title of a plot. I have written a function returning a plot and I would like that the main title of this plot shows actually the name of the dataset I have used. So, for instance: if my dataset is called Chl, I would like that my plot to be entitled : "Raw periodogram of Chl". I know the function "paste". I suppose I would be

Dear all, I am trying to plot and save the plots. I have written a small function for that in which I use the jpeg and dev.off() commands. Strangely, when these commands are inside the function, they are not working anymore. For instance: dataframe<- data.frame (x=c(1:20),y=seq(0,9.5, length=20)) for (i in seq(0,15, length=4)){ setwd ("C:/R") jpeg(filename =