Thanks to all
1) OK for the "+" sign and the problem of syntactelly unbreaking when you open a { or a (
2) Thanks for the advise to use another editor for the functions. And then the source() function. I tried it succesfully
Long life to R!
From: "Henrik Bengtsson" <[EMAIL PROTECTED]>
To: "'Vincent Stoliaroff'" <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>
Subject: RE: [R] writing several command line in R console
Date: Tue, 4 Mar 2003 14:04:13 +1100
The R prompt should be though of as a one line editor or rather one expression editor. You can not "step" between lines etc while editing an expression. The "+" in front of each row placed there by R indicating that even if you have typed ENTER the expression is not finished and that R expect you to close it (normally by closing brackets, parentesis etc). The "+" is just an indicator and will not be included in your expression.
What you really want to do when you create functions etc is to write the up in an external text editor, save them with the extension *.R, e.g. "twosam.R", and the use source to read the function in to R, i.e.
> source("twosam.R")
Make sure to save your twosam.R file as *text*. If you're using Windows you can use Notepad to do this. Also, you have to save the file in the working directory of R. You can find the current working directory of R by
> getwd()
Alternatively, you'll have to specify the full path to the file when using source
> source("C:/My Documents/hb/twosam.R")
Hope this helps!
Henrik Bengtsson
> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Vincent > Stoliaroff > Sent: den 4 mars 2003 13:36 > To: [EMAIL PROTECTED] > Subject: [R] writing several command line in R console > > > > Hi R lovers > > I would like to know how to step to the next line in the R > console editor > without breaking the continuity of my code > more clearly : if for example I write a function, so far i > have to write the > all code inside on the same line wich may become obscure as > the function is > more and more complex. > I would like to do like in the example of the manuels: > > >twosam <- function(y1, y2) { > n1 <- length(y1); n2 <- length(y2) > yb1 <- mean(y1); yb2 <- mean(y2) s1 <- var(y1); > s2 <- var(y2) > s <- ((n1-1)*s1 + (n2-1)*s2)/(n1+n2-2) > tst <- (yb1 - yb2)/sqrt(s2*(1/n1 + 1/n2)) tst } > > > all I can do is something like that: > > >twosam <- function(y1, y2) { n1 <- length(y1); n2 <- length(y2) > > + yb1 <- mean(y1); yb2 <- mean(y2) s1 <- var(y1); > s2 <- var(y2) > + s <- ((n1-1)*s1 + (n2-1)*s2)/(n1+n2-2) > + tst <- (yb1 - yb2)/sqrt(s2*(1/n1 + 1/n2)) tst } > > with the sign "+" in front of each line > What does this sign mean? and how could I solve my problems Thanks > > ______________________________________________ > [EMAIL PROTECTED] mailing list > http://www.stat.math.ethz.ch/mailman/listinfo/> r-help > >
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