Colorbar not matching for loop plot colours

Hi there i have a for loop plotting multiple lines on the same graph, with the help of @Marius I have managed to get each line a different color in a color scheme (jet). However how can I add a colorbar to the plot? I have tried myself right at the end of the script but its not working?

function TempSalplot(datafile)
datafile=importdata(datafile);
A=datafile.data;                                               %depth,distance,salinity,temp are in column 28,2,14,11 of datafile respectively;
figure; 
    for z=[1:3:max(datafile.data(:,28))];                      %max is around 16       
    col = jet(z);
        for depthi=[1:length(A(:,28))];
            if A(depthi,28)>z-0.5 & A(depthi,28)<z+0.5;
            B(depthi,1)=A(depthi,2);
            B(depthi,2)=A(depthi,14);
            B(depthi,3)=A(depthi,11);
            B(all(B==0,2),:)=[];
            [C,ia,idx]=unique(B(:,1),'stable');
            val=accumarray(idx,B(:,2),[],@mean);  
            M12=[C val];
            [C,ia,idx]=unique(B(:,1),'stable');
            val=accumarray(idx,B(:,3),[],@mean);  
            M13=[C val];
            M=[M12,M13(:,2)];
            end
        end
        plot(M(:,2),M(:,3),'.-','color',col(z,:));
        xlabel('Salinity (psu)');
        ylabel('Tempurature (degC)');
        hold on
    end
    h=colorbar('ticks',[1:max(z)]);                            %This doesn't seem to be working?
    caxis([1,max(z)]);
end

The colors in the colorbar just dont match the colors on the graph? Print screen of figure -->http://prntscr.com/8qecy1

Answer 1

[Ingrid]

just a quick glance so not sure if this is what you are looking for but you should put the call to create the colors of jet outside of your for-loop

figure; 
col = jet(max(datafile.data(:,28)));
for z=[1:3:max(datafile.data(:,28))];                      %max is around 16

[aaron Harvey]

Thank-you. I have to round to an integer but that did the trick.