I am getting error while accessing data from cell and storing it in matrix..can anyone help?

The following error occurred converting from cell to double:

Error using double

Conversion to double from cell is not possible.

Error in readSTL1 (line 17)

coordinates(i,1) = C{1,1}(m,1);

Answer 1

[Azzi Abdelmalek]

Clear your variable then try again

clear coordinates

[siddhesh rane]

tried..still not working. My code is as follows

function [ coordinates ] = readSTL1( filename,k)

% reads ASCII STL file and gives coordinates of vertices.
%filename-name of file(test.txt),k- number of rows in cell.
fid=fopen(filename);
C=textscan(fid,'%s');
%reads file and generates cell.
m = 11;
i = 1;
coordinates = zeros(4455,1);
while(m < (k-3))
j = 1;
    while (j < 4)    
     l = 1;
             while(l<4)
                coordinates(i) = C{1,1}(m);
                l = l+1;  % makes sure loop runs thrice.
                m = m+1;  % access corresponding row from cell'C'.
                i = i+1;  % row number in output matrix.
             end 
     m = m+1;
     j = j+1;
    end
  m = m+10;
end
end

[Azzi Abdelmalek]

Instead if

 coordinates = zeros(4455,1);

Use

 coordinates = num2cell(zeros(4455,1));

Or just change c{1,1}{m} instead of c{1,1}(m)

coordinates(i) = C{1,1}{m}