MATLAB: Using meshgrid from cell array error – “Undefined function full for input arguments of type cell”

forloopmeshgridplot

I am getting an error when trying to use the meshgrid function after creating an array from a structure using a for loop.
if true
%function (A,B) = 'Plot Output'
% This function takes input from the numbers of observation points for the % TABOO input and corresponds the observation point with the calculations % on the output files 'rate.his' and 'disp.his'
B = load ('obspoints.txt'); num_obs = length(B);
%num_obs = 11;
                fid = fopen('rate.his') ;
                    if fid == -1
                        disp ('File open not working')
                    else
                        disp('File open worked!')
                S = textscan(fid,'%s','delimiter','\n') ; %scans text
                S = S{1} ;
                %get locations where # not present
                qwe= strfind(S, '#');  %locates string '#'
                qwe = find((cellfun('isempty',qwe)));  
                %create new array sans '#'
                qwer = cell2mat(cellfun(@str2num,S(qwe),'un',0)) ; 
                qwerl = length(qwer);
                closeresult = fclose(fid);
                    if closeresult == 0
                        disp('File Close worked')
                    else
                        disp('File Close failure')
                    end
                    end
    for  n= 1:num_obs - 1 
        zxa = n + (n-1)*10;     %functions which give the  column interval on the above
        %matrice which correspond to each time stamp on the observation point
        zxb = n + (n-1)*10 + 10;
        rate(n).long     = B(n,2);
        rate(n).lat      = B(n,1);
        rate(n).time     = qwer(zxa:zxb,1);
        rate(n).dvert    = qwer(zxa:zxb,2);
        rate(n).dnorth   = -1*qwer(zxa:zxb,3);
        rate(n).deast    = qwer(zxa:zxb,4);
        rate(n).dgeoid   = qwer(zxa:zxb,5);
        rate(n).mass     = qwer(zxa:zxb,6);
    end
cell = struct2cell(rate);
% After the structure has been created, different outputs can be easibly % accessed, but must be turned back into a cell from the structure, and % a foor loop is used to fill up the arrays so the meshgrid function can be % used
    for  n= 1:num_obs - 1 
        long(n) = cell(1,:,n);  
        lat(n)  = cell(2,:,n);
        dvert(n)= cell(4,:,n);
    end
        [X,Y] = meshgrid(long,lat);
    % code
  end
the error message is:
Undefined function 'full' for input arguments of type 'cell'.
Error in meshgrid (line 56) xrow = full(x(:)).'; % Make sure x is a full row vector.

Best Answer

All we see is the failing code:
[X,Y] = meshgrid(long,lat);
You provide a cell array as inputs and this must fail. But what is the intention? I guess:
long = [cell(1, :, :)];  % Attention: not the builtin cell function
lat  = [cell(2, :, :)];
[X,Y] = meshgrid(long,lat);
This is a guess only. Are you sure that the conversion from structs to cells to vectors is useful? What about storing the data in a struct instead of a struct array:
% rate(n).long     = B(n,2);  ==>
rate.long(n)     = B(n,2);
Then you can omit the conversions and run directly:
[X,Y] = meshgrid(rate.long, rate.lat);
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