search for: rideau

R-help, Is there any package/function in R which can perform multi-dimensional scaling? Thank you in advance

R-help I have a martix with missing values( in which I want the sample size by column) When I : apply(matrix,2,length) I get the length of the vector regardless of missing values. I can't pass an argument to length in apply. Alternatively I could ifelse ( is.na ( matrix [, "columns in matrix " ] ) , 0 , 1) Is there any easier way? Thank you

R-help, In the following loop : for(i in 1:8) { cc[[i]]<-tapply(test[,i+6],list(puntar=test$puntar),sum)/tapply(test[,5],list(puntar=test$puntar),sum) cbind.data.frame(cc[[1]],cc[[2]],cc[[3]],cc[[4]], cc[[5]],c[[6]],cc[[7]],cc[[8]]) } Is there anyway I can 'cbind.data.frame' the objects cc[[ i ]] without actually writing every single element?? In this case there are 8 but what if

R-help Is there any way to specify the color of grid lines in a simple plot? par(color.tick.marks=c("grey")) plot(rnorm(10),tck=1) Thank you

R-help, I have a barplot and I wish to add standard erros (or deviations) bars to it. How? Thank you Luis Ridao Cruz Fiskiranns??knarstovan N??at??n 1 P.O. Box 3051 FR-110 T??rshavn Faroe Islands Phone: +298 353900 Phone(direct): +298 353912 Mobile: +298 580800 Fax: +298 353901 E-mail: luisr at frs.fo Web: www.frs.fo

sorry for my previus (WRONG) answer, as someone already pointed out a solution could be subset(data, PUNTAR==c("IX49","IX48")) > -----Messaggio originale----- > Da: Guazzetti Stefano > Inviato: venerd?? 23 luglio 2004 15.55 > A: 'Luis Rideau Cruz'; r-help at stat.math.ethz.ch > Oggetto: R: [R] retrieve rows from frame assuming criterion > > > Assuming your data.frame is called "data" > > data[data$PUNTAR==c("IX49","IX48"),] > > is probably what you want > > Stefano &g...

Hi all, I have the folowing frame(there are more columns than shown), 1 2 3 4 5 Year Total Tus Whi Norw 1994 1.00 1830 0 355 1995 1.00 0 0 0 1995 1.00 0 0 0 1995 1.00 4910 4280 695 1997 1.00 0 0

...1 12 6 11 39 4 13 5 5 34 8 58 13 Best, Luis >>> Prof Brian Ripley <ripley at stats.ox.ac.uk> 12/01/2005 09:14:22 >>> On Tue, 11 Jan 2005, Luis Rideau Cruz wrote: > R-help, > > I'm using the RODBC package to retrieve data froma ODBC database which > contain NA's. > > By using the argument nullstring = "0" in sqlQuery() I expect to > coerce them to numeric but still get NA's in my select. You need to r...

Hi all I have the next data frame year STOD SLAGNR TAL TALT TALVEKT 1 2002 2120006 57 1 NA 1 2 1997 97030032 57 NA NA NA 3 1997 97030071 27 1 NA NA 4 1997 97030005 57 1 NA NA 5 1997 97020127 60 NA 1 NA 6 2001 1160025 27 1 NA 1 7 1998 98020069 60 1 NA NA 8

Hi all, I want to fill in this matrix vectors (by column) without overwriting the first elements in column 1995. Is there any other way than concatenate the first element with the vector and then assign this new vector to the column in matrix? matrix[,"3"]<-c(1591,"vector") matrix[,"4"]<-c(405,"vector") ... ...

...ught in its pathway from the brain to the keyboard". :-) Sorry once again and thank for your patience. Stefano > -----Messaggio originale----- > Da: Prof Brian Ripley [mailto:ripley at stats.ox.ac.uk] > Inviato: venerd?? 23 luglio 2004 16.30 > A: Guazzetti Stefano > Cc: Luis Rideau Cruz; r-help at stat.math.ethz.ch > Oggetto: Re: R: [R] retrieve rows from frame assuming criterion > [corrected] > > > On Fri, 23 Jul 2004, Guazzetti Stefano wrote: > > > sorry for my previus (WRONG) > > answer, as someone already pointed out > > a solution c...

R-help, I have a list of several data frames. I want to compute the "rowSums" of the columns of these data frames but first one. Something like this lapply(my.list,rowSums) Thank you Luis Ridao Cruz Fiskiranns??knarstovan N??at??n 1 P.O. Box 3051 FR-110 T??rshavn Faroe Islands Phone: +298 353900 Phone(direct): +298 353912 Mobile: +298

R-help, I wish to get the p-values of anova model as numeric and not as part of the standard output (print,summary,,,) I have tried several commands but to not vail Thank you

Hi all I have a vector like this 2003 2002 2001 2000 1999 1998 1997 1996 106 105 106 106 105 106 101 107 How can I get it sorted right(1996....2003)? Thank you Luis Ridao Cruz Fiskiranns??knarstovan N??at??n 1 P.O. Box 3051 FR-110 T??rshavn Faroe Islands Phone: +298 353900 Phone(direct): +298 353912 Mobile: +298 580800 Fax: +298 353901

...t; answer, as someone already pointed out > a solution could be > > subset(data, PUNTAR==c("IX49","IX48")) > > > > > -----Messaggio originale----- > > Da: Guazzetti Stefano > > Inviato: venerd?? 23 luglio 2004 15.55 > > A: 'Luis Rideau Cruz'; r-help at stat.math.ethz.ch > > Oggetto: R: [R] retrieve rows from frame assuming criterion > > > > > > Assuming your data.frame is called "data" > > > > data[data$PUNTAR==c("IX49","IX48"),] > > > > is prob...

..., which says nullstring: character string to be used when reading 'SQL_NULL_DATA' character items from the database. ^^^^^^^^^^^^^^^ so this does not apply to numeric items. You can of course easily change numeric NAs to 0s, if you want to. On Wed, 12 Jan 2005, Luis Rideau Cruz wrote: > There is something strange in R behaviour (perhaps). Your negative remarks are not appreciated. > I have run the same select in Oracle SQL*Plus (version 10.1.0.2.0) and > the output comes out with NULLs (which is what it ougth to be). > > But in R I still get the sa...

R-help, I have a data frame wich I subset like : a <- subset(df,df$"column2" %in% c("factor1","factor2") & df$"column2"==1) But when I type levels(a$"column2") I still get the same levels as in df (my original data frame) Why is that? Is it right? Luis Luis Ridao Cruz Fiskiranns??knarstovan N??at??n 1 P.O. Box 3051 FR-110 T??rshavn

Hi all, I have a data frame in which one column(PUNTAR) is of character type. What I want is to retrieve is the frame but only with those rows matching elements of PUNTAR with a list characters (e.g c("IX49","IX48") ) Year TUR STODNR PUNTAR 1994 9412 94020061 IX49 1994 9412 94020062 IX48 1994 9412 94020063 X32 1994 9412 94020065 X23 1994 9412

R-help, I wish to replace NULL elements(or missing) in the following list : > z2 $cod mean sd 62.56190 12.65452 $haddock mean sd 36.61490 11.50365 $ling mean sd 86.17949 20.43587 $saithe mean sd 50.275847 5.453606 $whiting NULL $"norway pout" mean sd 13.739623 1.393104 $"great silver smelt" mean

I have just installed R 1.9.0 on my computer(Windows XP) and uninstalled 1.8.1 When Itry to execute .RData I'm asked to specify the program to open it.But whe I do it I get a message ".RData is not a valid Win32 program" Can anyone help please? Luis Ridao Cruz Fiskiranns??knarstovan N??at??n 1 P.O. Box 3051 FR-110 T??rshavn Faroe Islands Phone: +298 353900