How to plot PSD using data in excel?

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razin akmal
razin akmal on 22 Jun 2015
Commented: razin akmal on 2 Jul 2015
The data time and amplitude values are in an excel file. From that I wanted to plot PSD, Y-axis amplitude. X-axis frequency.How can I do in this in Matlab?

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Answers (1)

Murali Krishna
Murali Krishna on 22 Jun 2015
try this...
a=xlsread('test.xls','a1:a30');%time values
b=xlsread('test.xls','b1:b30');%amplitude values
plot(1/a,b);
test.xls is the excel file from which you have to read the data. you also have to specify the range of the data
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razin akmal
razin akmal on 2 Jul 2015
it is not working. it just plot straight line graph as i wanted spectral graph.

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