How to PLOT a FILE of data points
Matlab is actually quite useful even for things as simple as plotting a
file of data points. First you'll need a file with all the proper values.
Let's say you have a file with all your data, arranged like this:
x1 y1
x2 y2
x3 y3
.. ..
xn yn
Let's additionally say that the name of the file is "test.dat". To load
the data into matlab you would type the following at the matlab prompt:
load test.dat
Then "test" becomes a matrix where the first column is X and the second
column is Y. To plot this, you can type:
plot( test(:,1), test(:,2) )
Where "test(:,1)" means "the entire first column of matrix test".
|
