clear all;   close all ; 
% ::::::::::::::::::::::::::::::::::::::::::::::::::::::::.
colormap(winter)
% :::::::::::::::::::::::::::::::
vec = 2;                            % Anzahl Datensätze
y = 10*randn(90000, vec);
[n x] = hist(y,20);
% ::::::::::::::::::::
subplot(121)
   hb = bar3h(x, n);
   xlabel('\bf XXX')
   ylabel('\bf YYY')
   view(-50,10)
   pause(1)
% :::::::::::::::::::::::::::::::::. new Z-Tick-Labels ::::::::::::::::
yTicks = get(gca, 'Ytick');                                              % get old yTicks
yLabs = yTicks(1):5000: yTicks(end) ;                            % 500 - Abstand
set(gca,'yTick', yLabs)
 set(gca,'YTicklabel', yLabs', 'Fontweight', 'bold');