How to set transparency of stem plot (alpha) - is it even possible?

Hi everyone,

I am using the stem function and would like to set the transparency (or alpha) to values other than 1 for certain data points.

The code I am using is basic:

s = stem(x,y);

I have tried setting s.Color(4) = 0.5 but s.Color(4) is non-existent.

I have also tried: alpha(s,0.5)but I get the error:

Warning: The alpha command is not compatible with the specified objects. 

Is there any way of setting the transparency in stem plots?

thank you

Answer 1

[Nithin Kumar]

Hi Jack,

Kindly refer to the following example in which I am Adding the transparency by setting the "FaceAlpha" property to a value between 0 (completely transparent) and 1 (completely opaque) to the stem plot.

figure
data = [2 4 6 7 8 7 5 2]; %input data
stem(data) %creating stem plot of data
dim2 = [.74 .56 .1 .1]; %specifying the dimensions and position of the rectangle
annotation('rectangle',dim2,'FaceColor','blue','FaceAlpha',.2)

For more information regarding adding the transparency using stem function, kindly refer to the following documentation:

Adding transparency by setting FaceAlpha property

I hope this answer helps you.