Group bar in histogram, add label

Hi,

I have the following code for my histograms already:

mean_accuracy = [0.37,0.44,0.67,0.39,0.64,0.64]; % mean accuracy
std_accuracy = [0.15,0.07,0.07,0.09,0.04,0.03];  % standard deviation of accuracy
figure
hold on
bar(1:6,mean_accuracy)
errorbar(1:6,mean_accuracy,std_accuracy,'.')
axis([ 0 8 0 1])

set(gca,'xtick',[1 2 3 4 5 6 ])
set(gca,'xticklabel',{'2', '3', '4', '3', '4', '4'})

What I want to do, is group the bars as follows: The three first belong together, then the following two, and then the last one (so three groups). Each of these groups should have a label (ie Condition 1, Condition 2, Condition 3), and the groups should have some distance to each other on the x-axis. How can I do that in a simple way - I could not figure due to my inclusion of error bars.. Many thanks

Answer 1

[Fernando Bello]

Did you solve this problem?

Im trying to do something similar.

You can write your data as a matrix, where each col is a group.

For example: for two groups and 5 categories.

My data is number of car for 5 diferent colors at 2 different brands.

Lets say we have

Brand 1 brand 2

red 5 3

blue 4 1

green 3 4

yellow 1 3

orange 0 5

you can write that as a matrix

Data = [5,3;

4, 1;

3, 4;

1, 3;

0, 5];

then use

b = bar(Data)

and if you want to modify the colors of the bars... this will do the job

b(1).FaceColor = 'b'

b(2).FaceColor = 'r'

Then you can place your thicks

xticklabels ({'red','blue','green','yellow','orange'})

and thats it!

Best regards,

F.Bello