Filter löschen
Filter löschen

Plotting a column of a matrix as function of the others

2 Ansichten (letzte 30 Tage)
Diego Soler Polo
Diego Soler Polo am 4 Jun. 2018
As the result of a computation, I have a Nx3 matrix (N is huge). The first column is called X, the second column is called Y and the third column is called Z. I want to plot Z as a function of X and Y, but there's no any particular order in the rows of the matrix and there might be repetitions. I would like to do two things:
1) Plot Z thridimensionally, as in a surface plot
2) Make a color map
How can I do this?
Thanks

Antworten (1)

monika shivhare
monika shivhare am 4 Jun. 2018
make a meshgrid using values of X and Y
[x,y] = meshgrid(X,Y);
make a surfaceplot
surf(x,y,Z)
refer to link surface plots
to make a colormap to the surfaceplot refer Change Color Scheme Using a Colormap
  1 Kommentar
Diego Soler Polo
Diego Soler Polo am 4 Jun. 2018
X and Y are so large (they have about 7 million components each) that this doesn't work (MATLAB cannot create the grid). Is there any other way around this?

Melden Sie sich an, um zu kommentieren.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by