I am unable to generate a waterfall plot for my vibration data

I am looking to create a waterfall plot for my vibration data. The data includes Amplitude and time i did an FFT and now trying to perform a waterfall analysis

Here is my code

x1=Frequencycheck.Channelname; x2=Frequencycheck.Input0; Fs = 25600; % Sampling frequency T = 1/Fs; % Sampling period L = 25600; % Length of signal t = (0:L-1)*T; % Time vector Y = fft(x2);

%Compute the two-sided spectrum P2. Then compute the single-sided spectrum P1 based on P2 and the even-valued signal length L.

P2 = abs(Y/L); P1 = P2(1:L/2+1); P1(2:end-1) = 2*P1(2:end-1);

%figure for good fan

f = Fs*(0:(L/2))/L; %frequency domain f figure plot(f,P1,'k') title('Single-Sided Amplitude Spectrum of X(t)GOOD FAN') xlabel('f (Hz)') ylabel('|P1(f)|')

I have tried waterfall function but it only gives me error saying

waterfall(P1,t,f) Error using horzcat Dimensions of arrays being concatenated are not consistent.

Error in waterfall (line 64) z = [z0*ones(size(x,1),1) z(:,1) z z(:,size(z,2)) z0*ones(size(x,1),2) ];

Maybe I am doing something wrong.

I need help. Thanks in advance.