hide one tail of errorbar

I am generating figures for someone that wants to show only one half of an errorbar on a barplot. In one case, this was easy, as the barplot covered the tail, but in a second case, the offending tail goes beyond the axis so hangs out "below" the barplot.

This is just a one-off, so I don't need to do it programmatically, but I can, if necessary. Any advice?

I already tried inserting a white, rimless rectangle, but I couldn't figure out how to put it "behind" some other plot objects. That would also be an acceptable workaround.

Thanks!

Answer 1

[Kye Taylor]

Have you tried something like

x = linspace(0,1);
y = x.^2;
err = randn(size(x));
errorbar(x,y,zeros(size(x)),err)

Answer 2

[Luke Wilhelm]

Here is an example code that I believe produces what you are looking for (in this case, I have 20 bars in the bar graph):

x=1:20;

y=rand(1,20)

L=zeros(1,20)

U=rand(1,20)

bar(y)

hold on

h=errorbar(x,y,L,U,'k');

set(h,'linestyle','none');

Where U are the upper bounds on your error bars.

I hope this helps,

Luke

Answer 3

[Cathie Kessler]

Yes, of course, you're both right. I just didn't know that I could specify L and U values.

Thanks!

Answer 4

[Jonathan Epperl]

Here is a hack that should do what you want it to, odd request though to show only the upper half of the errors... Anyway:

x=1:20;
y=rand(1,20)
L=-rand(1,20)
U=rand(1,20)
bar(y)
hold on
h=errorbar(x,y,L,U,'k');
c = get(h,'Children')
yd = get(c(2),'Ydata');
yd([7:9:end 8:9:end])=nan;
yd(2:9:end)=y;
set(c(2),'YData',yd)