Finding a value from spectogram

I created this spectogram through a vector of amplitudes.

How can I find the max(:) Power/Frequency of this graph if I wasn't to graph it but just writing a line of code? I have many such vectors and I can't look at the spec for each one.

[Adam]

Did you use the spectrogram function from the Signal Processing Toolbox? If so take a look at

doc spectrogram

There are various function signatures that return the data as outputs rather than plotting it. I can't remember off-hand what is actually plotted by default, but it is based off one of those outputs.

[Image Analyst]

You forgot to include your amplitude data and your code, so about all I can say is to use the max() function.

[Lucrezia Cester]

nevermind found it.

Just saved the matrix of the figure.

[Rodrigo Rodrigues Bessa]

if you generate a handle for the colorbar after creating the spectrogram, you can see its max and min

spectrogram(y)

c = colorbar

c.Limits

[Mathieu NOE]

hi

it's not clear to me if you want the overall max of the entire spectrogram or if you want the max of the spectrum for each time slice (i.e each fft output) - in the second case you end up with a line of multiple maxima vs time.