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POHow to rbind matrices based on objects names?
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copied!<p>I have several matrices that I would like to <code>rbind</code> in a single summary one. They are objects product of different functions and they have share a pattern in their names.</p> <p>What I want to do is to tell R to look for all the objects with that common pattern and then <code>rbind</code> them.</p> <p>Assuming these matrices exist:</p> <pre><code>commonname.N1<-matrix(nrow=2,ncol=3) commonname.N2<-matrix(nrow=2,ncol=3) commonname.M1<-matrix(nrow=2,ncol=3) </code></pre> <p>I tried something like this to get them: </p> <pre><code>mats<-grep(x= ls(pos=1), pattern="commonname.", value=TRUE) mats [1] "commonname.N1" "commonname.N2" "commonname.M1" </code></pre> <p>What I can't figure out is how to tell <code>rbind</code> to use that as argument. Basically I would something that gives the same matrix than what <code>rbind(commonname.N1, commonname.N2, commonname.M1)</code> would do in this example.</p> <p>I have tried things on the line of</p> <pre><code>mats<-toString(mats) rbind(mats2) </code></pre> <p>but that just creates a matrix with the different objects as names. </p> <p>A similar question was asked <a href="https://stackoverflow.com/questions/10269221/how-can-i-expand-a-vector-into-the-arguments-of-a-function-in-r">here</a>, but:</p> <pre><code>mats<-as.list(mats) do.call(what=rbind, args=as.list(mats)) </code></pre> <p>doesn't do the job.</p> <p>Sorry if there is something basic I'm missing somewhere, but I can't figure it out and I'm relatively new to R.</p>

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