Saving matrix in Rdata and updating Rdata file

r rdata
user1723765 picture user1723765 · Aug 30, 2013 · Viewed 10.5k times · Source

I have a matrix: 

mat<-matrix(data=1:30,ncol=10,nrow=3)

I would like to save this to Rdata:

save(mat, file="m.Rdata")

Then load it back:

m<-load("m.Rdata")

Then look at its contents: 

m
[1] "mat"

All it displays is the name of the matrix saved but the values are lost.

What am I doing wrong?

Also

Once I have saved the matrix I would like to create a new matrix:

mat2<-matrix(data=30:59,ncol=10,nrow=3)

I would then like to save this mat2 into the same Rdata file, what is the right procedure?

Answer

zx8754 picture zx8754 · Aug 30, 2013

Just use load("m.Rdata")

And try ls(). You should see your matrix name.

Consider reading on basics of R - The Workspace

Related questions

How to see data from .RData file?

I saw some similar qestions and I tried to work it out on my own, but I couldn't. This is my problem: I have to load a isfar.RData file to use it in other computation (which are not important …

Read More
How to save data file into .RData?

I want to save data into an .RData file. For instance, I'd like to save into 1.RData with two csv files and some information. Here, I have two csv files 1) file_1.csv contains object city[[1]] 2) file_2.csv contains object city[[2]] …

Read More
R data formats: RData, Rda, Rds etc

What are the main differences between .RData, .Rda and .Rds files? More specifically: Are there differences in compression etc? When should each type be used? How to convert one type to another?

Read More