code to record data in csv file from gui matlab

Hi, i'm new to Matlab. i have this code that extract image feature using gui. i have problem creating a code that can record data extracted into csv and txt file. i want the data extracted from image are recorded into a single csv file each time an image is load into the gui. the data will be use to train a neural network. can some one help me? tq

[filename, pathname] = uigetfile( ...
    {'*.jpg', 'All JPG-Files (*.jpg)'; ...
        '*.*','All Files (*.*)'}, ...
    'Open');
% If "Cancel" is selected then return
if isequal([filename,pathname],[0,0])
    return
    % Otherwise construct the fullfilename and Check and load the file.
else
    File = fullfile(pathname,filename);
    % if the MAT-file is not valid, do not save the name
    fopen(File);
    
    a=[pathname,filename]; %file directory

    set(handles.edit38,'String',filename);
    
i=imread(File);%load image"
axes(handles.axes2);
imshow(i);

r=rgb2gray(i);%grayscale image
axes(handles.axes3);
imshow(r);


L = medfilt2(r,[5 5]);%filtered image
axes(handles.axes4);
imshow(L);

level=graythresh(L);%define treshvalue to convert image to binary
c=im2bw(L,level);
axes(handles.axes5);
imshow(c);


[xsize,ysize]=size(c);% read the size of the image
xsize
ysize



m00=0;
m01=0;
m10=0;
m11=0;
m12=0;
m21=0;
m02=0;
m20=0;
m03=0;
m30=0;



for x=1:xsize
    for y=1:ysize
        if (~c(x,y)==0),
                    m00=m00+1;
                    m01=m01+(y);
                    m10=m10+(x);
                    m11=m11+(x*y);
                    m02=m02+(y^2);
                    m20=m20+(x^2);
                    m12=m12+(x*y^2);
                    m21=m21+(x^2*y);
                    m03=m03+(y^3);
                    m30=m30+(x^3);
        end
    end
end


%centroid
z=x,y
xbar=m10/m00;
ybar=m01/m00;

xbar
ybar

set(handles.edit36,'String',num2str(m10/m00));
set(handles.edit43,'String',num2str(m01/m00));


%calculate the area of binary image
BW =~c;
area= bwarea(BW);
area
imshow(BW);
set(handles.edit37,'String',num2str(area));

bw2=~c;

perimeter=bwperim(bw2);
perimeter=bwarea(perimeter);
set(handles.edit44,'String',num2str(perimeter))%display to GUI

u00=m00;
u11=m11-(m10.*(m01/m00))-((m10/m00).*m01)+((m10/m00).*(m10/m00)).*m00;
u20=m20-(m10/m00).^2;
u02=m02-(m01/m00).^2;
u12=m12-2*m11.*(m01/m00)+m10.*((m01/m00).^2)-m02.*(m10/m00)+2*m01.*(m01/m00).*(m10/m00)-((m10/m00).^2).*(m10/m00).*m00;
u21=m21-2*m11.*(m10/m00)+m01.*((m10/m00).^2)-m20.*(m01/m00)+2*m10.*(m10/m00).*(m01/m00)-((m10/m00).^2).*(m01/m00).*m00;
u03=m03-2*m02.*(m01/m00)+m01.*((m01/m00).^2)+m02.*(m01/m00)+2*m01.*((m01/m00).^2)-((m01/m00).^3).*m00;
u30=m30-2*m20.*(m10/m00)+m10.*((m10/m00).^2)+m20.*(m10/m00)+2*m10.*((m10/m00).^2)-((m10/m00).^3).*m00;

tmp1=u00.^2;
tmp2=u00.^(2.5);
n20=u20/tmp1;
n11=u11/tmp1;
n02=u02/tmp1;
n30=u30/tmp2;
n12=u12/tmp2;
n21=u21/tmp2;
n03=u03/tmp2;

n11
n12
n21
n02
n20
n03
n30

M1=n20+n02;
M2=(n20-n02).^2+(4*(n11.^2));
M3=((n30-3*n12).^2)+(3*n21-n03).^2;
M4=((n30+n12).^2)+(n21+n03).^2;
M5=(n30-3*n12).*(n30+n12)+(((n30+n12).^2)-3*((n21-n03).^2))+(3*n21-n03)*(n21+n03)*(3*((n30+n12).^2)-(n21-n03).^2);
M6=(n20+n02).*(((n30+n12).^2)-((n21+n03).^2))+4*n11.*(n30+n12).*(n21+n03);
M7=(3*n21-n03).*(n30+n12).*(((n30-n12).^2)-3*((n21+n03).^2))+(3*n12-n30).*(n21+n03).*(3*((n12+n30).^2)-((n21+n03).^2));

M1
M2
M3
M4
M5
M6
M7

set(handles.M1,'String',num2str(M1));
set(handles.M2,'String',num2str(M2));
set(handles.M3,'String',num2str(M3));
set(handles.M4,'String',num2str(M4));
set(handles.M5,'String',num2str(M5));
set(handles.M6,'String',num2str(M6));
set(handles.M7,'String',num2str(M7));



%~~~~~~~~~~~~~~~~~~~~~~~~use when train data~~~~~~~~~~~~~~~~~~~~~
% stt=0; %use it when train data\\set grade value set 1 if pet, set 0 if nonpet
% humoment=[num2str(M1) ',' num2str(M2) ',' num2str(M3) ',' num2str(M4) ',' num2str(M5) ',' num2str(M6) ',' num2str(M7) ',' num2str(perimeter) ',' num2str(area) ',' num2str(xbar) ',' num2str(ybar) ',' num2str(stt)];
% Record (humoment,'C:\MATLABDATA\datatrain.csv') %use it when train data
% %~~~~~~~~~~~~~~~~~~~~~~~~use when test data~~~~~~~~~~~~~~~~~~~~~~
humoment=[num2str(M1) ',' num2str(M2) ',' num2str(M3) ',' num2str(M4) ',' num2str(M5) ',' num2str(M6) ',' num2str(M7) ',' num2str(perimeter) ',' num2str(area) ',' num2str(xbar) ',' num2str(ybar) ];

data= [filename ',' num2str(M1) ',' num2str(M2) ',' num2str(M3) ',' num2str(M4) ',' num2str(M5) ',' num2str(perimeter) ',' num2str(M6) ',' num2str(M7) ',' num2str(area) ',' num2str(xbar) ',' num2str(ybar)];
Record(humoment,'C:\MATLABDATA\datatest.csv')
Record(data,'C:\MATLABDATA\datatest.txt')  
set(handles.edit45,'String','Load completed')

end