How to plot multiple bar in one figure?

Hi I encounter some problem while plotting the graph Here is my command :

 This is the script for the data before shifting occured :
%Reading the data from the sheet 1, cells D2 to D30
dataMat=xlsread('TOFF','Sheet1','D2:D30');
% Get sum of numbers that  satisfy the conditions for x-column
x1=sum(dataMat(:,1)<=1.0);
x2=sum((dataMat(:,1)>1.0) & (dataMat(:,1)<=2.0));
x3=sum((dataMat(:,1)>2.0) & (dataMat(:,1)<=3.0));
x4=sum((dataMat(:,1)>3.0) & (dataMat(:,1)<=4.0));
x5=sum((dataMat(:,1)>4.0)& (dataMat(:,1)<=5.0));
x6=sum(dataMat(:,1)>5.0);
% Create figure
figure1 = figure;
%Draw bar width =0.5 for readibility
bar ([x1 x2 x3 x4 x5 x6],0.8,'r');
%Rename x-axis to be more meaningful
set(gca,'XTickLabel',{'x<=1','1<x<=2','2<x<=3','3<x<=4','4<x<=5','x>5'});
xlabel('RL (mm)','FontSize',20);
ylabel('Number of people','FontSize',20);
title(' TOFF RL','FontSize',20);
set(gca,'FontSize',20);

 This is script for data after shifting :
% Reading the data from the sheet 1, cells K2 to K30
dataMat2=xlsread('TOFF','Sheet 1','K2:K30');
% Get sum of numbers that  satisfy the conditions for x-column
x1=sum(dataMat2(:,1)<=1.0);
x2=sum((dataMat2(:,1)>1.0) & (dataMat2(:,1)<=2.0));
x3=sum((dataMat2(:,1)>2.0) & (dataMat2(:,1)<=3.0));
x4=sum((dataMat2(:,1)>3.0) & (dataMat2(:,1)<=4.0));
x5=sum((dataMat2(:,1)>4.0)& (dataMat2(:,1)<=5.0));
x6=sum(dataMat2(:,1)>5.0);
% Create figure
figure1 = figure;
%Draw bar width =0.5 for readibility
bar ([x1 x2 x3 x4 x5 x6],0.8,'r');
%Rename x-axis to be more meaningful
set(gca,'XTickLabel',{'x<=1','1<x<=2','2<x<=3','3<x<=4','4<x<=5','x>5'});
xlabel('RL (mm)','FontSize',20);
ylabel('Number of people','FontSize',20);
title(' TOFF RL After','FontSize',20);
set(gca,'FontSize',20);

How to plot all these data into one figure/graph only?

I would like to have six group for x1 x2 x3 x4 x5 x6, and for each group containing 2 different color of bar graphs indicating before correction and after correction.

Please help. Thanks

Answer 1

[dpb]

...
edges=[1:5];
N=histc([dataMat1(:,1) dataMat2(:,1)],edges);
bar(N,0.8)

See doc for details for setting counting bins in histc or later histogram function and bar for details on how it works with arrays...