[R] R function, sink() and empty file

Dear all, I wrote a simple script in order to put together some functions and method to be executed on various files I am trying to have to possibility to call the script changing few parameters in order to use the different files. I succeeded partly using the function method. However in my script

[R] cluster.stats

Dear list, I just tried to use the function cluster.stat in the package fpc. I just have a couple of questions about the syntax: cluster.stats(d,clustering,alt.clustering=NULL, silhouette=TRUE,G2=FALSE,G3=FALSE) 1) the distance object (d) is an object obtained by the function dist() on my own ori

Re: [R] cluster.stats

Thank you very much for your answer. I tried to run the function on my data and now I am getting this message of error Error in as.dist(dmat[clustering == i, clustering == i]) : (subscript) logical subscript too long Below the code I am using (version2.7.0 of R with all packages updated): data <

Re: [R] cluster.stats

, try to read the help pages first and find out whether img is of the > format that is required by the functions. And check (using str for example) > whether "data" is what you expect it to be. > > Christian > > > On Sat, 14 Jun 2008, Laura Poggio wrote: > > Tha

Re: [R] cluster.stats

larity matrix between all objects. > Yes I know ... I simply try to see if something was changing with different structure of data > > Christian > > On Sat, 14 Jun 2008, Laura Poggio wrote: > > I am sorry I did not provide enough information. >> I am not using img later,

Re: [R] cluster.stats

used in cluster.stats with a clustering vector of length 260,000 or so. > > Sorry, > Christian > > On Sat, 14 Jun 2008, Laura Poggio wrote: > > > Thank. See below. > > > > Laura > > > > 2008/6/14 Christian Hennig <[EMAIL PROTECT

[R] variable as part of file name

Dear all, sorry for this very basic question, but I did not find any good example yet. I would like to set up a variable that can be recall later to substitute a part of a file name. As example: var_filename = as.name("aaa") jpeg("var_filename.jpg") plot() dev.off() It would be very useful in o

Re: [R] variable as part of file name

Thank you perfect! it worked also with the GDAL option. Laura 2008/7/2 Richard Pearson <[EMAIL PROTECTED]>: > Laura > > Does jpeg(paste(var_filename, "jpg", sep=".")) do what you want? > > Regards > > Richard > > > Laura Poggio wrote: >

[R] x axe values

Dear list, I have to draw a simple plot. On y axe some numerical values that correspond to various categories on axe x. The table I am reading looks like: cat Obj1 Obj2 Obj3 max 23 27 34 ave 21 25 32 min 19 23 30 In order to avoid that the first column is reordered alphabetically I used: (found h

Re: [R] R-square in robust regression

ge robust. The second option is perhaps closest to > what you want. > > Regards, Mark. > > > Laura POggio wrote: > > > > I was searching for a way to compute robust R-square in R in order to get > > an > > information similar to the "Proportion of varia

Re: [R] R-square in robust regression

ter within R? Thank you very much in advance. Laura Poggio - Date: Mon, 20 Oct 2008 06:15:49 +0100 (BST) From: Prof Brian Ripley <[EMAIL PROTECTED]> Subject: Re: [R] R-square in robust regression To: PARKERSO <[E

Re: [R] R-square in robust regression

AIL PROTECTED]> > >>>>> "LP" == Laura Poggio <[EMAIL PROTECTED]> > >>>>> on Thu, 13 Nov 2008 10:43:14 + writes: > >LP> yes thank you! it is perfect. >LP> I was using lmrob in package robustbase and it did not have tha

[R] geotiff calculations

Dear list, I have to compare two digital elevation models in raster format (geotiff). I then have to calculate the differences in altitude for each cell and make some statistics (basic as mean, median, std, range but also more "advanced" as RMSE) on that. I do not know very much how to proceed: 1)