I am plotting a graph from strain vs stress from the tensile test experiment but it is starting form negative due to to compression forces how can I start it from positive .

please find the attached matlab script and the data from tensile test.the file which I have used is a .dat file but I was not able to attach that file so I have changed the file extension to .txt just for the reference.

Answer 1

[Satwik]

I would suggest you to try the xlim function of MATLAB in your plot. This will allow you to decide the range of your plot.

For example -

xlim([0 10])

This will keep the range for your plot from 0 to 10.