[R] error-prone feature?

[Khamenia, Valery]

Hi All,

  while looking why the cclust(cclust) doesn't work for 1-dimensional data,
  I've found unpleasant behavior in semantics of R. Indeed:

    is.matrix(matrix(cbind(c(1,2,3,4)),ncol=2)[1:2,])  == TRUE

  but:

    is.matrix(matrix(c(1,2))[1:2,]) == FALSE
  

kind regards,
Valery A.Khamenya
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Bioinformatics Department
BioVisioN AG, Hannover