too many open files even after adding fclose within my for loop

Question

Nathan Hogaboom 2024-8-22，17:18

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2147314-too-many-open-files-even-after-adding-fclose-within-my-for-loop

回答： Star Strider 2024-8-22，17:43

As the title says, I am receiving an error saying I have too many open files. I did look into it (via MatlabCentral) and attempted to fix it by adding 'fclose' after each 'fopen.' I am adding my for loop below. I included the first line of my code (readmatrix), but did not include the lines defining the variables because there are too many. What am I doing wrong here?

Thanks.

m=readmatrix('vertebrae_points_idno.xlsx');
%%did not include lines defining my variables%%
for i=1:length(m)
 for j=1:length(m(:,1))
    conversion=conversion_array(j);
        %combines variables into matrices for saving and printing.
        [c1,c2,c3,c4,c5,c6,c7]=matrix_combine(c1x(i,:),c1y(i,:),c2x(i,:),c2y(i,:),c3x(i,:),c3y(i,:),c4x(i,:),c4y(i,:),c5x(i,:),c5y(i,:),c6x(i,:),c6y(i,:),c7x(i,:),c7y(i,:));
        %calculate centroids.
        [c2_centroid,c3_centroid,c4_centroid,c5_centroid,c6_centroid,c7_centroid]=get_centroids(c2,c3,c4,c5,c6,c7);
        %generate "ideal" arc
        [line_x,line_y,x,y,C]=generate_arc(c2,c3,c4,c5,c6,c7); 
   
        %transpose for CircleFit
        arc_xy=[line_x.' line_y.']; 
        
        %gather points of circle from vertebral points
        Par=CircleFit(arc_xy); 
        
        %generate actual arc and plot
        [x2,y2,true_lord_angle]=generate_second_arc(c2,c7,Par); 
        
        %calculate distance between two arcs
        [converted_curve_dist,converted_max_curve_dist]=get_curve_distance(x,y,x2,y2,conversion); 
        
        %calculates extension angles
        [c1_c7_angle,c2_c7_angle,c2c3_tangent,c3c4_tangent,c4c5_tangent,c5c6_tangent,c6c7_tangent]=rotation_angles(line_x,line_y,c1,c2,c3,c4,c5,c6,c7);
        %closes image so the program can create another image with centroids.
        close all
        
        %calculates SVA, determines type of kyphosis, plots centroids and C2-C7 centroid line.
        [kyphosis_type,sva_axis]=kyphosis_sva_new(c7,c2_centroid,c3_centroid,c4_centroid,c5_centroid,c6_centroid,c7_centroid, conversion);
        spine_data=[converted_curve_dist,converted_max_curve_dist,sva_axis,true_lord_angle,c1_c7_angle,c2_c7_angle];
        
        opening_name='spine_xray_data.txt';
        opening_name2='translation_angles.txt';
        
        fid=fopen(opening_name,'w');
        fprintf(fid,'\n %10f\t %10.2f\t %10.2f\t %10.2f\t %10.2f\t %10.2f\t %10.2f\t %10s\t %10.4f',...
            sub_id, spine_data,kyphosis_type,conversion); 
        fclose(fid);
        fid2=fopen(opening_name2,'w');
        fprintf(fid2,'\n %10.4f\t %10.4f\t %10.4f\t %10.4f\t %10.4f',...
            c2c3_tangent,c3c4_tangent,c4c5_tangent,c5c6_tangent,c6c7_tangent); 
        fclose(fid2);
 end
end