when i try to run the code, see below, no error is shown... when do you obtain the error?
osmotisk_data = readtable("https://nl.mathworks.com/matlabcentral/answers/uploaded_files/1096510/tester_tabeller.xlsx");
x = osmotisk_data{:,1};
y = osmotisk_data{:,2};
z = osmotisk_data{:,3};
numPoints = size(z, 1);
% Make a colormap with, say, 256 potential colors .
numColors = 256 ;
cmap = jet(numColors);
% Get the rows of the colormap that each value of z should take on .
colorIndex = round(rescale(z, 1, numColors ));
for k = 1 : numPoints
thisColor = cmap(colorIndex(k ), :);
plot3(x(k), y(k), z(k),'.', 'Color', thisColor, 'MarkerSize', 40 )
hold on ;
end
colormap(cmap );
colorbar
fontSize = 12 ;
xlabel('Osmotisk trykk', 'FontSize',fontSize );
ylabel('Sone nummer', 'FontSize',fontSize );
zlabel('Samlet aktivitet', 'FontSize',fontSize );
grid on
