MATLAB tutorial - 3D plot for beginners (meshgrid, surf, bar3, plot3, contour)

This video talks about . A few examples will be discussed. The functions that we used in this video are . If you have any question, please leave it at the comment.

[Mchicho]

thank you tor this video, one can use the function Plot(x, I/max(I)); to plot Normalized intensity; my question is how to get Normalized intensity by [x, y]=meshgrid(x, y); mesh(x, y, I);

[konehnorbert]

thanks for the video. Please I want to plot a 3D surf of two equations united by ‘if’ and ‘else’ statements. For example. “if X>Y Z=2X+Y elseif X<=Y Z=3X-2Y end surfc(X, Y, Z)” …. How do I go about it? Thanks in advance.

[vidyashreev]

i have x, y and z values how to plot contour graph in Matlab

[param]

I had a sum to solve and the condition of x and y are the things I could not write in meshgrid
: 1<=x, y<=5

Can you tell me how to write this conditions in meshgrid?

[mubashiriqbal]

How can we deduct negative peaks from peaks command

[onkarkhadke]

I have three independent variables say (x, y, z). I have another dependent variable say w
So in all I have four columns. First three containing x, y, z data and w in the last column.
How to plot a 2d ternary diagram wherein each side of the triangle depicts the variation of x, y, z and inside of this triangle will have w data with different colors indicating it's variation. Please help me with this regard please 🙏
Thank you

[amianifineug]

Please how find max of curve when we use mesh

[akanshamehta]

i have three row vectors of same size..how to plot it as a surface.

[abhishekmc]

i have three columns of data in excel sheet which are my x, y and z coordiantes. How to recreate that as a 3D model in matlab?