similar to: to modify a matrix

Hi All. I am quite a newbie to R. This is a basic question. I like to modify elements of a vector. For Example: a1 <- c(1,2,3,4,3,5) TThe following program sentence does not work but the intention is; if (a1==3) a1*3 . 3 in the vector should be changed to 9, and the resulted vector is (1,2,9,4,9,5). How can I get the result? Thanks in advance for help. -------========-------- mitsu5

Hi. I have tried to use Package "SEM". As a learning, I try to convert a program running well of EQS which is as follows to SEM: ### EQS ### /SPECIFICATION CAS=100; VAR=5 MAT=COR; ANA=COR; /EQUATIONS V1=*F1+E1; V2=*F1+E2; V3=*F1+*F2+E3; V4=**F1+*F2*E4; V5=*F2+E5; /VAR E1 TO E5=*; F1*1.0; F2=1.0; /COV E1,E2=*; F1,F2=*: /PRINT FIT ALL; /MATRIX ...... /END This is the converted SEM

Hi. I am wondering whether Package SEM can do with intercepts and means in its structural analysis. If it can not calculate, how can I make a supplemental function in R? Many thanks in advance. --------========---------- Mitsuo Igarashi mitsu5 at ruby.famille.ne.jp

I truly thank for evrybody to give me many very good answers and suggestions. I like to summarize the replies with their results when excuted on R and with my comments. My question is > x <- matrix(1:10.,5) > x [,1] [,2] [1,] 1 6 [2,] 2 7 [3,] 3 8 [4,] 4 9 [5,] 5 10 there is a matrix. On condition x[? ,1]=3, how to modify the appropriate location to be

Hello R-Helpers, I have a slight problem with the expresion data[data==""] <- NA which works well for a data.frame. But now i must use the same for a list of data.frames. My idea is data[[]][data==""] but it don´t work. Thanks!! Dominic [[alternative HTML version deleted]]

Hi there I have a string like this i want to extract 9831019 from this string i used a regular expresion \d+ by which i can only make it to see 7 and returns. This type of number(9831019) appears in any part of the string and is definitely more than 5 digits all the time and i want to give that as a condition UV7C11-F9-E1 MCS#9831019 MCS Lot #9512516" how do i go abt it Ramya -- View

Hola a todos, Me gustaria saber como puedo evaluar / obtener el resultado guardado en un objeto cuando este se ejecuta. Quiero decir, el resultado de la siguiente expresion: > paste("res_UP_sep_dec_","16_17_18",sep="") [1] "res_UP_sep_dec_16_17_18" es un objeto (una lista) cuyo nombre es precisamente res_UP_sep_dec_16_17_18 >

r-help-es, en muchas situaciones me encuentro con la necesidad de pasar el nobre de un objeto como argumento a una función: for (i in 1:3) cat(paste( "avglrss",i," <- ", "scan(\"","avgl",i,".rep","\"",",skip=7",")" ,sep="")) en este ejemplo estoy creando objetos "avglrss1",

Dear All, I'n trying to make a simple call forwarding, however I have small problem when evaluating an expresion. Here is my extensions.conf ... ; Unconditional Call Forward exten => _#21*X.,1,Set(DB(CFIM/${CALLERID(num)})=${EXTEN:4}) exten => _#21*X.,2,Hangup() exten => #21#,1,Set(ignored=${DB_DELETE(CFIM/${CALLERID(num)})}) exten => #21#,2,Hangup() ... exten =>

hello, there is new version of the best open source TAPI driver for Asterisk - Activa 1.6.1 * NEW: Asterisk 1.6 compatibility (partially sponsored by IPEX a.s. http://www.ipex.cz) * NEW: FEATURE_CODES standardization for AgentACD integration login, logout, ready, notReady. * NEW: ActivaTSP x64 version. * New: Windows 2008 Server compatibility. * CHANGE: Some performance optimization. * FIX:

I've complex problem and this's idealization of it: v=1:10 fx<-function(x){ v[x]=v[x]*2} fy<-function(y){ fx(y)} for(i in 1:10){ fy(i)} How to modife expresion (and only that): {v[x]=v[x]^2} to achive the redefinetion of the values of vector v, the result should be: v=(1:10)*2. I think, that could be done with using of internal functions, but I'm not the programmer.

producing a multi-figure plot, i am try to add beta_1, beta_2,.. beta_9 to ylab using expression or substitution, but cannot work out like for (i in 1:9){ plot(seq(1/m, 1-1/m, 1/m), beta.q[,i], type="l", col=1, ylim=range(beta.q), xlab="quantile", ylab=expresion(beta[i])) } any suggestions will be greatly appreciated. DL [[alternative HTML version deleted]]

Hello. This is my first post to the list, so first I'd like to thank everybody for making and mantaining such a great product as R. I'm writting a native binding to R from Dolphin Smalltalk. I've followed up the examples of the documentation showing how to run R embedded, and I got it partially working. However, I have a problem with the reference handling of the R objects.

I need to deal with a large file (about more than 2G [byte]) with eventmachine. I wrote a simple program with using "stream_file_data" as send a large file from client to server. But It didn''t work. Applying below a quick fix patch, I think it works well. Could you go over this patch? Regards, -- Kuroishi Mitsuo diff -rup

Hola Eric. Muchas gracias por tu respuesta. Intenté hacer lo mismo sobre una variable agregada a datos, de modo: datos$p_Valores <- datos[, Valores/sum(Valores), by=MesAño] pero no funciona, porque pega un data.table en una única variable: In `[<-.data.table`(x, j = name, value = value) : Supplied 2 items to be assigned to 5849 items of column 'pValores' (recycled leaving remainder

I am new to R and would like to get some practice analyzing multilevel data. I wonder if anyone can point me to a sample data set and command lines that I might replicate for a sample session. I would then compare my output with HLM output. Any help is appreciated. ------ Harold C. Doran Director of Research and Evaluation New American Schools 675 N. Washington Street, Suite 220 Alexandria,

I've prepared preliminary versions of two packages that I plan eventually to contribute to CRAN: car (for "Companion to Applied Regression") is a package that provides a variety of functions in support of linear and generalized linear models, including regression diagnostics (e.g., studentized residuals, hat-values, Cook's distances, dfbeta, dfbetas, added-variable plots,

I've prepared preliminary versions of two packages that I plan eventually to contribute to CRAN: car (for "Companion to Applied Regression") is a package that provides a variety of functions in support of linear and generalized linear models, including regression diagnostics (e.g., studentized residuals, hat-values, Cook's distances, dfbeta, dfbetas, added-variable plots,

I've prepared preliminary versions of two packages that I plan eventually to contribute to CRAN: car (for "Companion to Applied Regression") is a package that provides a variety of functions in support of linear and generalized linear models, including regression diagnostics (e.g., studentized residuals, hat-values, Cook's distances, dfbeta, dfbetas, added-variable plots,

Bonjour, Je suis ?tudiant stagiaire ? Paris et je rencontre quelques difficult?s en programmation R. J'ai une data frame compos?e de 4 colonnes et 250 lignes et dont chaque ligne est une famille. J'ai fait un tirage al?atoire avec remise des familles 250 fois ce qui m'am?ne ? une nouvelle dataframe. A cette nouvelle dataframe, j'applique un programme qui calcule 2 param?tre X1