bar categorical with line

Everyone,

Is there code to make a similar plot in Matlab as the following (from excel) with categorical x-axis?

I'm fairly amateur with matlab so, please be explicit.

I make it for the bars using categorical, so i get four categories of 5cm, 10, 20 and 40 but cant get the line like that?

Cheers.

[Walter Roberson]

If the 5, 10, 20, 40 are intended to represent x locations, then No, you have a problem of duplicate x values.

bar() can accept categorical data for the x axis. It will use the value associated with the category as the x displacement.

[George Korovesis]

Thank you.

I make the bar chart as such:

x = categorical({'5cm','10cm','20cm','40cm'});
x = reordercats(x,{'5cm','10cm','20cm','40cm'});
y = ([0.6 0.8 1.0; 0.6 0.8 1.0; 0.6 0.8 1.0; 0.6 0.8 1.0]);
bar(x,y,'c');

But that's the most I can. Can't get the line to go through each bar (it goes through the category 5cm) if that makes sense.

I tried to use secondary axis but again I can't make it works.

Answer 1

[Walter Roberson]

You would have to do something like

b = bar(double(x), y, 'c'); 
xticklabels( {'5cm','10cm','20cm','40cm'} );
drawnow()    %important to do before getting the children
xpos = cell2mat(arrayfun(@(S) unique(S.NodeChildren(1).VertexData(1,:)).', b, 'uniform', 0));

Now xpos(:,1) will be the coordinates of the left and right edges of the first bar in each group. So you could for example,

xc = squeeze(mean(reshape(xpos,2,[],size(xpos,2))));

and that would be number of groups x bars per group of x coordinates of the centers of bars.

hold on
lp = plot(reshape(xc.',[],1),reshape(y.',[],1));
hold off

[George Korovesis]

That's amazing!!!

Thanks for that. I don't even understand the code but it works (children???)!

Thank you!