Switching from Matlab to R

You can write out to binary or text from Matlab and read that in with
readBin or read.table, there is also the R.matlab package to read some .mat
files directly.

If you mean (particularly sparse) spatial weights in the spatial 
regression sense, then in Matlab do for example:

[i,j,w] = find(weights);
wts = [i,j,w];
save -ascii wts.txt wts

and in R

library(spdep)
lw0 <- read.dat2listw("wts.txt")
lw <- nb2listw(lw0$neighbours, glist=lw0$weights, style="W")

If more general structures, follow Mike's suggestions.

Roger

On Monday, May 21, 2012, Saima Bashir wrote:

I want to import weight matrix into R from Matlab. Is it possible? if yes
then how??

Thanks

Saima

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Roger Bivand
Department of Economics, NHH Norwegian School of Economics,
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