hi,this is my code

x=xlsread('book4','tabelle1','R1:AEK1');
>> 
>> y=xlsread('book4','tabelle1','R2:AEK2339');
>> [X,Y]=meshgrid(x,y);
>> z=[1:1:2339];
>> [Z]=meshgrid(z);
>> surf(X,Y,Z)

but i get this erorr Error using surf (line 71) Data dimensions must agree.

can you help me,tnx

[madhan ravi]

upload your datas/file

Answer 1

[Stephen23]

Replace this:

>> z=[1:1:2339];
>> [Z]=meshgrid(z);

With something like this:

>> Z = nan(size(Y));
>> Z(:) = 1:numel(Y);

[Amin Rezvanpour]

tnx a lot for your answer,after this code:x=xlsread('book4','tabelle1','R1:AEK1'); >> y=xlsread('book4','tabelle1','R2:AEK2339'); >> [X,Y]=meshgrid(x,y); >> Z = nan(size(Y)); >> Z(:) = 1:numel(Y); >> surf(X,Y,Z) , now i get this error: Warning: MATLAB has disabled some advanced graphics rendering features by switching to software OpenGL. For more information, click here. Can you help me please.tnx

[Stephen23]

"now i get this error: Warning: MATLAB has disabled some advanced graphics rendering features by switching to software OpenGL"

That is not an error, that is just a warning message telling you that MATLAB has changed which renderer it is using. Unless you have specific needs related to a specific renderer, you can just ignore that warning message.