From: <grazia_at_stat.columbia.edu>

Date: Thu 11 May 2006 - 03:05:00 EST

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 Received on Thu May 11 03:58:55 2006

Date: Thu 11 May 2006 - 03:05:00 EST

Robert,

thanks first of all.

Actually, the txt file I want to read as a list is like that:

$y

$y$mod.1

[1] "impute.1.y=glm(I(y>0)~x+ z+ w,family=binomial(link =logit),data=
data)"

$y$mod.2

[1] "impute.2.y=lm(I(log (y))~x+ z+ w,subset=y>0)"

$x

[1] "impute.x=lm(x~y+ z+ w, data= data)"

$z

[1] "impute.z=lm(z~y+ x+ w,data= data)"

that is a list of 4 elements with the first element a list as well.

To save the file I'm using this function:

list2ascii <- function(x,

file=paste(deparse(substitute(x)),".txt",sep="")) {

So, I should read it using

read.fwf("models.txt", width=getOption("width"))

On Wed, 10 May 2006, Robert Citek wrote:

> Hello Grazia,

*>
**> On May 10, 2006, at 10:23 AM, grazia@stat.columbia.edu wrote:
**>> I'm trying to automate some regression operations in R leaving the
**>> possibility to modify the predictors in the regression.
**>>
**>> For example, I have saved in a list the results and then exported as a txt
**>> file, in which we can modify the predictors, putting for example
**>> lm(y~x^2) instead of having lm(y~x) as in the original model.
**>>
**>> Now, I need to import in R the txt file as a list to evaluate the model.
**>> Is that possible?
**>>
**>> I played around with source() and file() but can't figure it out.
**>
**> What OS are you using? When you say the list is in a text file, how is the
**> text file structured, e.g. CSV, TSV, fixed-width, other?
**>
**> Here's an example of creating, writing, and reading a data.frame:
**>
**> d <- data.frame(cbind(x=1, y=1:10))
**> write.table(d, file="r-data.txt", sep="\t", na="", quote=FALSE, row.names =
**> FALSE)
**> d.new <- read.delim("r-data.txt")
**>
**> HTH.
**>
**> Regards,
**> - Robert
**> http://www.cwelug.org/downloads
**> Help others get OpenSource software. Distribute FLOSS
**> for Windows, Linux, *BSD, and MacOS X with BitTorrent
**>
*

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