I am NOT plotting from the actual data, I only have a data.frame that list the x, y values as well as the upper and lower confident intervals. I want to plot line graph with confident interval. I want to plot something look like this:
How do I do that? Here is the data.frame:
grp x y se conf.low conf.high
0 0 66.27373472086 1.51067072892736 63.3124335788501 69.2350358628699
1 0 74.2148696059611 1.40010518400934 71.4703052207858 76.9594339911364
0 0.67 69.3077020704515 1.31170050247573 66.7364334799 71.8789706610029
1 0.67 76.3216788839049 1.20426555957627 73.9610102692502 78.6823474985597
0 1 70.8020441978622 1.22261128345911 68.4054132705439 73.1986751251804
1 1 77.3593610655788 1.11440617937562 75.1748398271279 79.5438823040297
0 1.33 72.2963863252729 1.1412866614517 70.0591724644355 74.5336001861103
1 1.33 78.3970432472526 1.03045308168746 76.3770915601266 80.4169949343786
0 1.67 73.8360115474536 1.06749385699758 71.7434504636362 75.9285726312711
1 1.67 79.4661703435226 0.951785143725553 77.6004279424212 81.331912744624
0 2 75.3303536748644 1.00766551737773 73.3550714441075 77.3056359056212
1 2 80.5038525251965 0.885018762433004 78.7689893139698 82.2387157364231
0 2.33 76.8246958022751 0.961651291277803 74.9396132276638 78.7097783768863
1 2.33 81.5415347068703 0.830004991659586 79.9145125619316 83.168556851809
0 2.67 78.3643210244558 0.930852945704656 76.5396110870919 80.1890309618197
1 2.67 82.6106618031403 0.788216247319819 81.0655562889848 84.1557673172958
0 3 79.8586631518665 0.918673165304013 78.0578287003509 81.6594976033822
1 3 83.6483439848142 0.764438197615392 82.1498495318225 85.1468384378058
0 3.33 81.3530052792773 0.924646047789058 79.5404624498965 83.165548108658
1 3.33 84.686026166488 0.758771039041166 83.1986407942751 86.1734115387008
0 3.67 82.892630501458 0.949415832811663 81.0315325559489 84.7537284469671
1 3.67 85.755153262758 0.772285708885219 84.2412756798491 87.2690308456669
0 4 84.3869726288687 0.990197010525795 82.445933140954 86.3280121167834
1 4 86.7928354444318 0.803258225588529 85.2182438042978 88.3674270845659
0 4.33 85.8813147562794 1.04552693252472 83.8318144647857 87.9308150477731
1 4.33 87.8305176261057 0.849887736164329 86.1645202148295 89.4965150373818
You're looking for geom_ribbon. Calling your data frame df:
ggplot(df, aes(x = x, y = y, group = factor(grp),
color = factor(grp), fill = factor(grp))) +
geom_ribbon(aes(ymax = conf.high, ymin = conf.low), alpha = 0.2) +
geom_line()
It will be a little cleaner if grp is already a factor.
来源：https://stackoverflow.com/questions/38024545/how-do-i-plot-the-confidence-interval-when-i-provide-the-c-i-values