Finding Maximum Value In Array

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Chris Corbett
Chris Corbett 2013-3-18
Hi, I have an array where the first row is data, and the second row is frequency, I also have a graph of this data versus frequency. I want to find the maximum values of this data, as it spikes at certain frequencies, and the frequency associated with these maximums. I can't work out how to do it at all. a is the data. NEWF is the frequency.
array = [a;NEWF]
Any advice?
Thanks, Chris.

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回答（2 个）

Sean de Wolski
Sean de Wolski 2013-3-18
编辑：Sean de Wolski 2013-3-18
doc max
Look at both output arguments. The second one, index, will tell you where to grab from.
Image Analyst
Image Analyst 2013-3-18
If you have multiple peaks, try findpeaks() in the Signal Processing Toolbox, or imregionalmax() in the Image Processing Toolbox. If you don't have either toolbox, check the File Exchange.

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