How do I plot multiple spectrogram of a wavefile in a subplot?

I need to plot multiple spectrograms(using STFT) in a single subplot. The first figure is the plot of wavefile (silence removed). Now the second figure should be the spectrogram using 'jet' and the third figure should be the greyscale spectrogram. But when I write the code below:

subplot(2,1,1);
plot(yEdited);
title('Silence Removal');
grid on;

subplot(2,1,2);
imagesc(t,f,S_log);
colormap('jet');
axis xy;

subplot(2,1,3);
imagesc(t,f,S_log);
axis xy;
colormap(flipud(gray));
axis xy;

The second and the third figure becomes exactly the same. I don't understand why! The second figure should be a coloured one and the third one should be the gray-scale.

Answer 1

[Adam Danz]

That's because your command

subplot(2,1,2);

creates a grid of subplots that are [2-by-1]; hence, only 2 subplots. You're not creating 3 subplots. If you want 3 subplots stacked vertically you need to call

subplot(3,1,1);
subplot(3,1,2);
subplot(3,1,3);