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Hello, This may sound crazy, but I have a large number of Multiplan data files I'm in the process of recuperating, and I'm hoping to avoid having to open them one by one to convert them into a modern, directly usable format. So I was wondering if someone somewhere had encountered this and maybe had a way to read Multiplan files in R, or, at least, a way to read SYLK files directly in R.

Hello R-helpers, I'm writing a long function in which I manipulate a certain number of datasets. I want the arguments of said function to allow me to adapt the way I do this. Among other things, I want my function to have an argument which I will pass on to subset() somewhere inside my function. Here is a quick and simplified example with the iris dataset. myfunction<-function(table,

Hello RHelpers, This may already have been answered, but despite days of scouring through the archives I haven't found it. My goal is to add multiple fitted curves to a plot. An example data set (a data frame named df in following code) is: x1 y1 factor1 4 1298.25 0.00000000 1 5 1393.25 0.00000000 1 6 1471.50

Hello R-gurus, I'm trying to adjust different growth curves to a rather extensive dataset. I wrote up a function to go through all of them, but am encountering a problem : among the more than 1000 curves I have, obviously for some of them I encounter conversion problems. I'd like for my function to keep going to the next curve and store the fact that for curve number X I had a convergence

Hello all, Working with a typical xyplot figure (for example the first from example(lattice) ) I would like to place the tick marks inside the panels instead of outside. I believe working with the axis argument might be the way to do it, but do not see how? Could anyone help me out in doing this? In advance thank you. David Gouache ARVALIS - Institut du v?g?tal Station de La Mini?re 78280

Hello R-helpers, I would like to produce a boxplot for dates, using lattice. Here is a dummy example : dates<-as.Date(32768:32895,origin="1900-01-01") plouf<-data.frame(days=dates,group=factor(rep(1:2,times=128/2))) bwplot(group~days,data=plouf) # doesn't work, whereas : bwplot(group~as.numeric(days),data=plouf) # does, but is obviously not good looking when it comes to

R-helpers, I'm having difficulty with customizing strip names for a lattice graphic. Here is an example using the iris data set : xyplot(Sepal.Length+Sepal.Width~Petal.Length,groups=Species,data=iris) ## I'd like to change the 2 strip names to "Length" and "Width" for example, this is what I've tried :

Hello all, I have a vector of character strings, in which I have letters, numbers, and symbols. What I wish to do is obtain a vector of the same length with just the numbers. A quick example - extract of the original vector : "lema, rb 2%" "rb 2%" "rb 3%" "rb 4%" "rb 3%" "rb 2%,mineuse" "rb" "rb" "rb 12"

Hello R-helpers, I'm trying to customize a graphic in lattice using the 'legend' argument to add labels on my plot but in the process I'm losing the legend drawn by 'auto.key', despite the fact that I'm actually not sticking these on the same sides of the graphic. I worked up a quick and simple example with the iris data : ### here's the basic graph

Hello all, A quick question concerning a behavior of reshape I fail tu understand, probably something obvious but I just can't see it. With the following data frame further referred to as tab :

Hello Rhelpers, I am trying to represent the following data (hereafter named donnees) in a barchart with a grouping variable : site traitement date s res 1 NT 17/10/2005 normal 76.2 1 T 17/10/2005 normal 103.2 1 NT 23/11/2005 tardif 81.6 1 T 23/11/2005 tardif 98 2 NT 15/10/2005 normal 72.71 2 T 15/10/2005 normal 94.47 2 NT 15/11/2005 tardif 79.65 2 T 15/11/2005 tardif 94.7

Hello Rhelpers, I need to run the following loop over a large number of data-sets, and was wondering if it could somehow be vectorized. It's more or less a cumulative sum, but slightly more complex. Here's the code, and an example dataset (called tab in my code) follows. Thanks in advance for any suggestions! res<-0 for (i in min(tab$Date):max(tab$Date)) { if

Hello, I'm trying to pull off a certain graph using splom, and can't quite get my panel functions right. Basically, the equivalent using pairs would be something like this (using iris data set as an example): panel.corval <- function(x, y, digits=2, prefix="", cex.cor,col,pch) { usr <- par("usr"); on.exit(par(usr)) par(usr = c(0, 1, 0, 1))

Hello R-helpers, I'm trying to add labels to points in xyplot graphs, but I want lo label only those points which have a certain level of my grouping variable, and have encountered a few problems. An example dataframe that goes with the following code is at the end of this message. 1st step, adding labels (from another column in the dataframe) to my chosen points : I've figures this

Hello all, A question for plotting of intamap results : Is it possible, and in so, how, to specify the cutoff points for changing colors of plots ? Using the example : data(meuse) meuse$value = log(meuse$zinc) data(meuse.grid) coordinates(meuse) = ~x+y coordinates(meuse.grid) = ~x+y object = interpolate(meuse,meuse.grid,outputWhat = list(mean = TRUE, variance = TRUE, excprob = 7, excprob = 8,

Hello R-helpers, I'm looking for a way to rename strips in lattice plots when I have more than one conditionning variable. Here's a dummy example taken from http://casoilresource.lawr.ucdavis.edu/drupal/node/510 library(lattice) f <- function(a, b, x) {p <- (exp(a + b*x)) / (1 + exp(a + b*x))} x.seq <- seq(-5, 5, by=0.5) x <- rep(x.seq, 9) a.seq <- c(-2, 0, 2) b.seq

Hello all, I have a large data frame and I want to look at the distribution of each variable very quickly by plotting an individual histogram for each variable. I'd like to do so using lattice. Here is a small example using the iris data set: histogram(as.formula(paste("~",paste(colnames(iris[,!sapply(iris,is.factor)]),collapse="+"))),data=iris[,!sapply(iris,is.factor)])