Getting matlab to read values of a graph

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Tara Milne
Tara Milne 2015-11-3
回答： Walter Roberson 2015-11-3
How do I read the values of voltage when current is zero, and current when voltage is zero from a current voltage graph in matlab
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Tara Milne
Tara Milne 2015-11-3
I have the actual Matlab figure, I made the current column one vector and voltage the other and did plot(current, voltage)
Tara Milne
Tara Milne 2015-11-3
btw I don't have data points for when the current and voltage are zero, but the graph goes through these points

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Walter Roberson
Walter Roberson 2015-11-3
First step:
v_at_c0 = interp1(current, voltage, 0); %estimate of voltage at which current is 0
For finding the current at which the voltage becomes 0, a sample graph would help. In some cases it is very easy, in other cases it takes a bunch more work.

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