REGARDING THE PLOT IN MATHLAB2TIKZ

x = -5:0.2:5;
t = 0:0.02:1;
C1 = sin(x' * t); % Example data
surf(x, t, C1);
xlabel('x');
ylabel('t');
zlabel('\eta(x,t)');
title('Surface Plot of \eta(x,t)');

% Export the plot as a TikZ file
matlab2tikz('figure1.tikz', 'height', '\figureheight', 'width', '\figurewidth');
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WHENEVER I USE THE matlab2tikz THE FIGURE IS GENRATE FOR THE FIRST COMMAND BUT USING MATLAB2TIKZ IT IS THE FOLLOWING MSG IS DISPLAYED

You will need pgfplots version 1.12 or newer to compile the TikZ output

Do i need to install pgfplot in MATLAB .If yes how ?

[Torsten]

"matlab2tikz" is not an official MATLAB function, but a script from the FileExchange.

So these are questions you should address to the creator of "matlab2tikz", Nico Schlömer, not to TMW.

But the instructions how to proceed seem rather clear:

https://uk.mathworks.com/matlabcentral/fileexchange/22022-matlab2tikz-matlab2tikz

Tikz and Pgfplots are stand-alone programs, not MATLAB codes. So don't install them in MATLAB.

[Walter Roberson]

Yes, you absolutely need Pgfplots, along with a few other packages. https://github.com/matlab2tikz/matlab2tikz

[yogeshwari patel]

Okay, Thanks .