change variable name

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Baba
Baba 2011-11-2
I would like to be able to Change 'X7' to anything else in psdest and title. So for instance instead of manually chaning it in both places, I'd like to just have one place that I'd have to change this in.
Here is my code:
subplot(3,2,1)
Hs=spectrum.periodogram;
psdest = psd(Hs,X7,'Fs',Fs);
semilogx(psdest.Frequencies,10*log10(psdest.Data));
grid on;
xlabel('Frequency (Hz)')
ylabel('dB/Hz')
title('X7')

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采纳的回答

Fangjun Jiang
Fangjun Jiang 2011-11-2
In one place, X7 is a variable. In the second place, 'X7' is a string. I am not sure what you try to do, but I don't see a real value for doing this. It is possible though,
Str='X7';
psdest = psd(Hs,eval(Str),'Fs',Fs);
title(Str);

更多回答（1 个）

Walter Roberson
Walter Roberson 2011-11-2
function psdplot(InputVar)
subplot(3,2,1)
Hs=spectrum.periodogram;
psdest = psd(Hs,InputVar,'Fs',Fs);
semilogx(psdest.Frequencies,10*log10(psdest.Data));
grid on;
xlabel('Frequency (Hz)')
ylabel('dB/Hz')
title(inputname(1))
Then call
psdplot(X7)

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