Writing data to Netcdf File

Hello

I'm trying to write data to a netcdf file I keep on getting

Error using netcdflib The NetCDF library encountered an error during execution of 'putVaraDouble' function - 'Start+count exceeds dimension bound (NC_EEDGE)'.

Error in netcdf.putVar (line 84) netcdflib(funcstr,ncid,varid,varargin{:});

Error in internal.matlab.imagesci.nc/write (line 831) netcdf.putVar(gid, varid,start, count, varData);

Error in ncwrite (line 75) ncObj.write(varName, varData, start, stride);

Error in testplot2 (line 205) ncwrite(file,'prob_5',rain5)

The file that I'm starting with is Netcdf with data from the HRRRe model. The data that I'm trying to add is precipitation values that have been interpolated at the 5% and 95% probability of occuring.

    file='C:\Users\agoenner\Desktop\190-17-15-06.nc';
    for i = 1:y
        for j = 1:x %   rain(row,col)
            a = POPvalue0(i,j);   % Matrix with probability of 0 rainfall occurring
            b = precip12(i,j);    % Matrix with probability of .5 inches of rainfall
            c = precip25(i,j);    % Matrix with probability of 1 inches of rainfall
            d = precip50(i,j);    % Matrix with probability of 1.5 inches of rainfall
            e = precip76(i,j);    % Matrix with probability of 2 inches of rainfall
            f = POPvaluemax(i,j); % Matrix with 0 probability of any rainfall occurring 
            o = [a,b,c,d,e,f];
            o = unique(o,'stable'); Interpolation
            len = length(o);
            if (len == 2)
                p =[0 .5];
                POPvalue5(i,j) = 0;
                POPvalue95(i,j) = 0;
            elseif (len == 3)
                p = [0 .5 1];
                POPvalue5(i,j) = interp1(o,p,y5,'pchip');
                POPvalue95(i,j) = interp1(o,p,y95, 'pchip');
            elseif (len == 4)
                p = [0 .5 1 1.5];
                POPvalue5(i,j) = interp1(o,p,y5, 'pchip');
                POPvalue95(i,j) = interp1(o,p,y95, 'pchip');
            elseif (len ==5)
                p = [0 .5 1 1.5 2];
                POPvalue5(i,j) = interp1(o,p,y5, 'pchip');
                POPvalue95(i,j) = interp1(o,p,y95, 'pchip');
            else
                p = [0 .5 1 1.5 2 APCP];
                POPvalue5(i,j) = interp1(o,p,y5, 'pchip');
                POPvalue95(i,j) = interp1(o,p,y95, 'pchip');
            end
        end
    end
    rain5= POPvalue5;
    rain95=POPvalue95;
    rain5 = double(squeeze(rain5));
    rain95 = double(squeeze(rain95));
    end
    ncdisp(file);
    attrib = ncreadatt(file,'APCP_prob_GT_76D2_surface','level')           Using Attributes from a different variable in the original file to assign them to prob_5
    attrib2 = ncreadatt(file,'APCP_prob_GT_76D2_surface','coordinates'); 
    attrib3 = ncreadatt(file,'APCP_prob_GT_76D2_surface','units')
    attrib4 = ncreadatt(file,'APCP_prob_GT_76D2_surface','_FillValue')
    nccreate(file,'prob_5','Datatype','single');   
    ncwrite(file,'prob_5',rain5)                               %Here is where I'm have the issue. 
    ncwriteatt(file,'prob_5','FillValue',attrib4)
    ncwriteatt(file,'prob_5','short_name', 'prob_5')
    ncwriteatt(file,'prob_5','long_name','The_amount_rainfall_at_5_percent')
    ncwriteatt(file,'prob_5','level',attrib)
    ncwriteatt(file,'prob_5','units',attrib3)
    ncwriteatt(file,'prob_5','coordinates',attrib2)