multicolor bar graph using long vectors

Hello,

I am trying to create a bar graph with one vector of positive numbers and one vector of negative numbers on the same graph. For example:

x = 1:100;
y = -(1:100);
bar(x,'b')
hold on
bar(y,'r')

This works fine!!

The problem is my vectors are 1370 x 1 variables and the same code does not work for long vectors...

x = 1:1370;
y = -(1:1370);
bar(x,'b')
hold on
bar(y,'r')

This creates blue bars for x, but creates black bars for y. Can anyone help me with this problem?!

Thanks, Dan

Answer 1

[Walter Roberson]

"black bars" usually means bars that are so close together that the black edge around them runs together.

Try using

bar(y, 'r', 'Edgecolor', 'none')

Answer 2

[Dan]

Thank you both for the help! Walter your solution worked just fine!

Thanks again!