How can I plot shaded confidence intervals on my plot?

I am trying to plot the confidence intervals for males and females on my graph. I have been using simple line plots for the female and male data and their upper and lower confidence intervals, using the following code

x=[5,610,1115,1620,2125,2630,3135,3640,4145,4650];

y=[1.5728,1.6011,1.5828,1.583,1.5779,1.5931,1.6136,1.6132,1.6354,1.6512];


CI = [0.047204964	0.020555517	0.030005595	0.023338819	0.030057518	0.026567109	0.027295407	0.025855224	0.029278635	0.028793178];    %CI values


y2 = [1.4904,1.625,1.5834,1.6213,1.6135,1.6378,1.6212,1.6563,1.662,1.6657,1.6462,1.7267]

x2 = [5,610,1115,1620,2125,2630,3135,3640,4145,4650, 5155, 5660]

CI2 = [0,0.02859404,0.03932538,0.031767406,	0.033377728,0.033181883,0.02925182,	0.030260765,0.028698134,0.026206678,0.035101913,0]


plot(x, y, 'color', [0, .6, .77])

hold on

plot(x, y-CI, ':', 'color', [0, .6, .77])

hold on

plot(x , y+CI, ':','color', [0, .6, .77])

hold on

plot(x2, y2, 'color', [.89, 0, .23])

hold on

plot(x2, y2-CI2, ':', 'color', [.89, 0, .23])

hold on

plot(x2 , y2+CI2, ':','color', [.89, 0, .23])

hold off

ylabel('vTMD')
xlabel('Depth (%)')

xticks([5, 610, 1115, 1620, 2125, 2630, 3135, 3640, 4145, 4650, 5155, 5660])
xticklabels({'0-5', '6-10', '11-15', '16-20', '21-25', '26-30', '31-35', '36-40', '41-45', '46-50', '51-55', '56-60'})

This gives me a graph that looks like this -

Is there a way to shade the individual CI as it is pretty hard to read right now! For example, a lighter blue in between the dashed blue lines.

Answer 1

[Star Strider]

Add these two patch calls after the last plot call and before the hold off call:

patch([x fliplr(x)], [y-CI fliplr(y+CI)], [0, .6, .77], 'FaceAlpha',0.5, 'EdgeColor','none')

patch([x2 fliplr(x2)], [y2-CI2 fliplr(y2+CI2)], [.89, 0, .23], 'FaceAlpha',0.5, 'EdgeColor','none')

They use the appropriate colours for the patch objects. Experiment with them to get different results.

[Sam]

Perfect, thank you so much

[Star Strider]

As always, my pleasure!

[Eric]

Thanks, Star Strider. This is just what I needed for my research effort...ou're the best!

[Star Strider]

@Eric — I very much appreciate your compliment!