how to make the graph start at axis-y = 0 ?

How to fix the graph, so that the black dot, start at 0 ?

Answer 1

[Max Heimann]

Assuming the data you are plotting are vectors called

x_data, y_data

You could offset your data to achieve your goal.

x_data = x_data - x_data(1);
y_data = y_data - y_data(1);

Now your graph will start at 0,0

Answer 2

[yanqi liu]

yes，sir，may be set options 'ValidationFrequency' to make different valid step