How do I plot a large amount of data?

2018 12 19
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madhan ravi
madhan ravi 2018-12-19
编辑：madhan ravi 2018-12-19

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x=1:733;
y=Ppvproto.PVPower(24:756);
plot(x,y,'.')% % if it doesn’t work upload your excel file which reveals the entire contents

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It seems the problem is because the numbers data from excel are written as string array instead of numerical/logical array.
Can I ask how to change it?
madhan ravi
madhan ravi 2018-12-19
Try
str2double()
if it doesn't work please upload your excel file.

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