I would like to ask if there is some simple way for building a hist from the
following data.

mm <-c(2,3,0,4,5,0,2,9,0)
mmm <- matrix(mm,ncol=3, nrow=3)

x <- c(0,1.45,2.9)

in mmm there are frequencies (each column is separate histogram and each row
corresponds to value of x).
So that for the first histogram  we have 2 times interval [0,1.45] and 3
times [1.45,2.90].

Thanks a lot!

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