Surface under the curve

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Mahi Nazir
Mahi Nazir 2015-3-23
评论： Star Strider 2015-3-24
I have 3 vectors x,y,z such that function plot3 plots the attached graph. I need to fit a surface such that I get somewhat second attached graph.
I have tried surf function but I don't get the results I want. Kindly help

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Star Strider
Star Strider 2015-3-23
This looks something like what you want:
x = [0:10 10];
y = [0:10 10];
z= [0 6 5 8 7 7 8 9 7 5 6 0];
figure(1)
patch(x, y, z, 'g')
grid on
view([-30 30])
The key is using the patch function.
producing:
  2 个评论
Mahi Nazir
Mahi Nazir 2015-3-24
Thanks star. Thats what i wanted... cheers!
Star Strider
Star Strider 2015-3-24
My pleasure! Cheers!

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更多回答（1 个）

Konstantinos Sofos
Konstantinos Sofos 2015-3-23
griddata is the key function
Does this helps How to plot a 2d matrix on a 3d graph?
Regards
  2 个评论
Mahi Nazir
Mahi Nazir 2015-3-23
Hi Thanks for your reply.
For example I choose
x=1:10
y=1:10
z= [6 5 8 7 7 8 9 7 5 6]
I cant see this working here. Can you please help.
Konstantinos Sofos
Konstantinos Sofos 2015-3-23
编辑：Konstantinos Sofos 2015-3-23
Hi,
Your x,y are identical, so your data are collinear. It doesn't make sense and this is not a 3D problem but a 2D
"In statistics, multicollinearity (also collinearity) is a phenomenon in which two or more predictor variables in a multiple regression model are highly correlated, meaning that one can be linearly predicted from the others with a non-trivial degree of accuracy."

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