Data dimensions must agree

i have a function z which has two variables x and y. z , x and y are vectors of length 20. While plotting a function, MATLAB says that 'Data dimensions must agree'. Using the commands

x=PitchAngle;

y=TipSpeedRatio;

[xx,yy]=meshgrid(x,y);

zz=PowerCoefficient;

z=reshape(zz,[5,4])

mesh(x,y,z)

I dont know whether i am using the right command. Please lead me to the right way. Thankyou

[Asif Rashid]

z=reshape(zz,[5,4])

converts vector into a matrix as MATLAB needs z to be a matrix not a vector

Answer 1

[madhan ravi]

 x = reshape(x, 1, []);
 y = reshape(y, 1, []);
 [xx, yy]=meshgrid(x,y);
 z = repmat(zz(:), 1, size(xx, 2));
 mesh(xx, yy, z)

[Asif Rashid]

Sir, Thankyou for your Answer. I have tried implementing this but until command 4 , the code is running without errors but when i write 5th command that is mesh(x,y,z) amd run the program, i am encountered with the same error 'Data dimensions must agree'

command 1

x=reshape(PitchAngle,1,[]);

command 2

y=reshape(TipSpeedRatio,1,[]);

command 3

[xx,yy]=meshgrid(x,y);

command 4

z = repmat(PowerCoefficient(:), 1, size(xx, 2));

command 5

mesh(x,y,z)

on the workspace

x is shown ( value) as 1x20 double

xx is shown (value) as 1x20 double

y is shown (value) as 44250

yy is shown (value) as 1x20 double

z is shown (value) as 20x20 double

Please guide

[madhan ravi]

 mesh(xx, yy, z)

[Asif Rashid]

Thankyou Sir. It worked

[Asif Rashid]

Sir i i want to change the axis so when i wrote this code

x=reshape(TipSpeedRatio,1,[]);

y=reshape(PitchAngle,1,[]);

[xx,yy]=meshgrid(x,y);

z = repmat(PowerCoefficient(:), 1, size(xx, 2));

mesh(xx,yy,z)

I cant plot the figure successfully. untill command

z = repmat(PowerCoefficient(:), 1, size(xx, 2));

the code is running successfully but when i write

mesh(xx,yy,z)

i see the error that

Z must be a matrix, not a scalar or vector.

how may i fix this error. please guide