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Dear Ted,

The traditional way to import matrix data from file is to 1. define a matrix and then 2. scanf the file by specifying the number of rows and cols, e.g. Is there a way in hoc, which can automatically read in the nrow/ncol information from the file without specifying all the times ?

Let me refer you to the Programmer's Reference documentation of the Matrix class and its methods, where you will find the answer to your question. See the "Programmer's Reference" link on NEURON's home page http://www.neuron.yale.edu

thanks ! scanf() with no arguments works perfect.