On Fri, 12 Oct 2007, andreas.rosenblad(a)ltv.se wrote: > In some other software, like R or MatLab, one can create an empty matrix of > unknown dimension, which is useful when one wants to successively add > values to a matrix vector, and don't know beforehand how many values will > be added. > > Is it possible in gretl? If not, could such a feature be added, please? Good idea. At present, matrix a = { } results in a segfault, which is bad because not only it makes sense, but because even a meaningless construct shouldn't crash the program.