how to write the legend in bar chart

how to add legend for the first, second and third column?

this is the code:

y =[44,55,54] ;
b = bar(y,0.5);
bar(y)

Answer 1

[Ameer Hamza]

Try this

y =[44,55,54];

hold on
for i=1:numel(y)
    bar(i, y(i))
end
legend({'first', 'second', 'third'})

[Ibrahim AlZoubi]

thanks sit

[Ibrahim AlZoubi]

do you know how to write names instead of numbers

first one: A

second: B

third: C

[Ameer Hamza]

On the x-axis?

[Ibrahim AlZoubi]

yes

[Ameer Hamza]

Run this

y =[44,55,54];

hold on
for i=1:numel(y)
    bar(i, y(i))
end
xticks(1:numel(y))
xticklabels({'A', 'B', 'C'})
legend({'first', 'second', 'third'})

[Ibrahim AlZoubi]

appreciate it mr Hamza thank you so much

[Ameer Hamza]

I am glad to be of help.

[Ibrahim AlZoubi]

oh! it's my mistake now i remember it's for y axis not x!

[Ibrahim AlZoubi]

how would it be changed

[Ameer Hamza]

Something like this

y =[44,55,54];

hold on
for i=1:numel(y)
    bar(i, y(i))
end
[y_, idx] = sort(y);
labels = {'A', 'B', 'C'};
yticks(y_)
yticklabels(labels(idx))
legend({'first', 'second', 'third'})

[Ibrahim AlZoubi]

thank you ive last question if you can help on it

[Ibrahim AlZoubi]

why y =[44,55,54]; isn't shown, i mean i think it's not on y axis...

y =[44,55,54];

this data i want it in x axis but how can i run it in x axis?

[Ameer Hamza]

You can replace A, B and C with what you want

y =[44,55,54];
hold on
for i=1:numel(y)
    bar(i, y(i))
end
xticks(1:numel(y))
xticklabels({'44', '55', '54'})
legend({'first', 'second', 'third'})

[Ibrahim AlZoubi]

thank you sir it worked thank you!