Plotting Graph that needs automated value for x-axis

Hello.

I am working in plotting a graph where the y-axis is the data from the file I choose. However, for the x-axis, is it possible for matlab to automatically give 0.01 interval from the first value till the last value in the file and the file has no fixed amount of data.

Really appreciate if anyone can give some advice. Thanks!

Regards,

Jeb

Answer 1

[Geoff Hayes]

Jeb - how do you determine the first and last value in the file? If you know both, then you could do something like

 firstValue = 1.0;
 lastValue  = 5.0;
 x = firstValue:0.01:lastValue;

Since you are using the above to plot presumably as

 plot(x,y)

then the number of elements (length) of x must be identical to the number of elements of y.

[Jeb]

Hey Geoff,

Thank you so much for your answer. In the file, it is a series of values that I selected based on the overall shape of the graph and only a small range are selected. Hence, there is no fixed first and last value for every set of file.

Again, thanks for answering.

Regards,

Jeb