changing bar color to black and white

Hello every body

I want to change the color of a bar element to black and white, I don't know how to use the RGB codes of the colors.

bar(mydata, ' stacked ', 'color' , 'DimGray');

As I googled I find '65 65 65' for RGB code of 'dimGray' , and also I used

bar(mydata, ' stacked ', 'color' , [ 65 65 65 ]);

but it doesn't work out.

Could anyone help me in this issue?

Appreciate your kind help.

Answer 1

[Robert U]

Hi Vahid_68,

the function bar does not support your command. Colors have to be given as normalized values in the range [0..1] and there is no property 'color'.

One way (even though you cannot distinguish matched segments) is to call the following commands:

 x = rand(5);
 bar(x,'stacked','FaceColor',[0.65 0.65 0.65])

That gives you a grey faced bar with 5 segments each.

Kind regards,

Robert

[Walter Roberson]

bar(mydata, ' stacked ', 'color' , [ 65 65 65 ]);

should become

bar(mydata, ' stacked ', 'color' , [ 65 65 65 ]/255);

[Robert U]

Hi Walter Roberson:

You are right about the scaling factor for 8bit rgb color space only. And, the property 'color' is not available for bar-plots as rgb-triplet.

Kind regards,

Robert