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Hello everyone, I am using the following code to try to calculate the mean : dat<-read.table(file="C:\\Documents and  Settings.....txt") dat<-as.numeric(dat) x1.m<mean(dat) I am getting the following error message Error in eval.with.vis(expr,envir,enclos): (list) object cannot be coerced to type"double' I do not understand what is wrong as I thought that I have changed

Hello everyone, I have a data frame in which I am wanting to eliminate the row labels and then relabel the rows with g1-g2000.I have used the following code: dat<-read.table(file="C:\\Documents and Settings\\Owner\\My Documents\\colon cancer1.txt",header=T,row.names=1) file.show(file="C:\\Documents and Settings\\Owner\\My Documents\\colon cancer1.txt") I thought that this

Hello everyone, I am trying to subset a matrix with the following code: dat<-read.table(file="C:\\Documents and Settings\\Owner\\My Documents\\Yeast\\Yeast.txt",header=T,row.names=1) file.show(file="C:\\Documents and Settings\\Owner\\My Documents\\Yeast\\Yeast.txt") Z.matrix<-as.matrix(dat) Y<-array(dat,dim(,[46:63]) but I keep getting the error message: error in dim

Hello everyone, I am trying to plot a boxplot but am coming up with the error : "could not find function dat" I have used the following code. dat<-read.table(file="C:\\Documents and Settings\\.......txt",header=T,row.names=1,blank.lines.skip=F,na.strings="NA") file.show(file="C:\\Documents and Settings\\......txt")

Hello everyone, I have two problems which I am unable to solve : 1.I am trying to add the  row labels (g1-g2000) to the very left of a data table. The data table is 2000 rows  by 62 columns.I have used the following code. read.table(file="C:\\Documents and Settings\\Owner\\My Documents\\colon cancer1.txt",header=T,row.names=1) rowname(dat) <- paste("g", c(1:nrow(dat)),

Hello everyone, I am trying to plot an MvA plot with the following code: dat<-read.table(file="C:\\Documents and Settings\\.....txt",header=T) file.show(file="C:\\Documents and Settings\\Ow.......txt") library(sma) data(MouseArray) dat.o<-as.list(dat) dat.o$R.2<-as.matrix(dat[,c(1:5)]) dat.o$G.2<-as.matrix(dat[,c(6:10)]) dat.o$Gb.2<-as.matrix(dat[,c(11:15)])

Hello everyone, I am trying to use the following code: dat<-read.table(file="C:\\Documents.....txt") class2<-read.table(file="C:\\Documents.....txt") class1<-read.table(file="C:\\Documents .....txt") dat<-as.data.frame(dat) dimnames(dat)[[1]]<-paste("g",c(1:nrow(dat)),sep="")

Hello everyone, I have a plot and I am wanting to label points as 1 through 20 I have the following code for the plot: dat<-read.table(file="C:\\Documents and Settings\\Owner\\My Documents\\colon cancer1.txt",header=T,row.names=1) file.show(file="C:\\Documents and Settings\\Owner\\My Documents\\colon cancer1.txt")

Hello everyone, I have a question as to what code should be used if one wanted to subset from a dataframe of 7000rows by 38 columns.For example if you wanted to generate a array of 100 by 38 would you not use the following: Z<-(dat,dim=c(100,38)) where dat is the dataframe of 7000by 38 Whenever I do this and type show(Z) I get a output of 100 by 38 they all say "integer,7000" as

Suppose I have a dataframe as follows: dat <- data.frame(id = c(1,1,2,2,2), var1 = c(10,10,20,20,25), var2 = c('foo', 'foo', 'foo', 'foobar', 'foo')) Now, if I were to subset by id, such as: > subset(dat, id==1) id var1 var2 1 1 10 foo 2 1 10 foo I can see that the elements in var1 are exactly the same and the elements in var2 are exactly

Hello everyone, I have the following code which keeps giving me an error. The code is: dat<-read.table(file="C:\\Documents and Settings\\Owner\\My Documents\\eisen.txt",header=T,row.names=1,blank.lines.skip=F,na..strings="NA") dimnames(dat)((1)) <-as.character(dat(,1)) dat<-dat(,-1) dat<-as.data.frame(dat) file.show(file="C:\\Documents and Settings\\Owner\\My

Dear R-expert, For histogram function, can we get the table of bin and frequency like in excel, together with the histogram? Therefore, we can check the number of data included. Thank you so much for your attention and help. ____________________________________________________________________________________ [[elided Yahoo spam]]

Hello everyone, I am trying to cast a data frame to a matrix I have used the following code: dat<-read.table(file="C:\\Documents and Settings\.....txt",header=T,row.names=1) file.show(file="C:\\Documents and Setting....t.txt") Z.matrix<-as.matrix(dat.data.frame) but I keep getting the error error in as.matrix(dat.data.frame): object dat.data.frame not found What am I

Hello to everyone, I have a general question about how to add a column to a table.I have a table that has 62 columns and 2000 rows.I am wanting to add a column on the left most row.I am wanting to label the rows g1 to g2000 I have the code of ("g",c(1:nrow(dat)),sep="") for the right side of the assignment but do not know what function to use for the left side of the equation.I

Estimada comunidad, tengo un problema que no puedo resolver. Tengo muchos archivos (los llamaremos "TMP") con los que debo construir un archivo resumen que llamare "DAT". A partir de los nombres de los archivos TMP construyo las primeras 4 columnas de DAT, luego, con datos del interior del archivo TMP construyo las columnas 5 a 9 de DAT. El problema insoluble que tengo es que

Hi, I'm analyzing a large number of large simulation datasets, and I've isolated one of the bottlenecks. Any help in speeding it up would be appreciated. `dat` is a dataframe of samples from a regular grid. The first two columns are the spatial coordinates of the samples, the remaining 20 columns are the abundances of species in each cell. I need to calculate the species richness in

Hi I am comparing four different linear mixed effect models, derived from updating the original one. To compare these, I want to use anova(). I therefore do the following (not reproducible - just to illustration purpose!): dat <- loadSPECIES(SPECIES) subs <- expression(dead==FALSE & recTreat==FALSE) feff <- noBefore~pHarv*year # fixed effect in the model reff <-

i have a data frame(dat) which has many variables.and i use the following script to get the crosstable. >danx2<-c("x1.1","x1.2","x1.3","x1.4","x1.5","x2","x4","x5","x6","x7","x8.1","x8.2","x8.3","x8.4","x11",

Hi I want to do a series of linear models, and would like to define the input arguments for lm() as variables. I managed easily to define the formula arguments in a variable, but I also would like to have the "subset" in a variable. My reasoning is, that I have the subset in the results object. So I wiould like to add a line like: subs <- dead==FALSE & recTreat==FALSE which

Dear R-user, I have a data like this below, age <- c("young","mid","old") married <- c("no","yes") income <- c("low","high","medium") gender <- c("female","male") I want to make some of combination data like these, age.income.dat <- expand.grid(age,