Answer to Question #6376 in MatLAB | Mathematica | MathCAD | Maple for Lori

Question

Write a script that will load data from a file into a matrix. I am confused on how to load data files and call functions in matlab.

Answer 1

Suppose you have a file "mydata.txt" with the following contents

1 2 3
4
5 6 7 8
9 10 11 12

So here are numbers separeted by spaces '
'
Then the command

M = dlmread('mydata.txt',' ')

will read all
the file into the matrix M and print

M =

1 2 3
4
5 6 7 8
9 10 11 12


The first
argument of the command 'dlmread' is the file name, and the second one is the
separator of numbers.
If you numbers are separeted by tabsm, or commas use
the commands

M = dlmread('mydata.txt','\t')

or

M =
dlmread('mydata.txt',',')

respectively.