可能重复：
Order Bars in ggplot2 bar graph
R: ggplot2 offset scatterplot points
我在这里有一个示例data.frame和plot。我想稍微重新定位'factory'类型中的点和水平误差线，以便它们不会相互重叠。
## example data.frame
df <- structure(list(factory = structure(c(1L, 1L, 4L, 4L, 3L, 3L,
2L, 2L), .Label = c("A", "B", "C", "D"), class = "factor"), response = c(0.12,
0.08, 0.14, 0.11, 0.12, 0.11, 0.15, 0.09), lci = c(0.13, 0.1,
0.11, 0.09, 0.11, 0.06, 0.13, 0.06), uci = c(0.14, 0.07, 0.15,
0.1, 0.22, 0.14, 0.15, 0.08), variable = structure(c(1L, 2L,
1L, 2L, 1L, 2L, 1L, 2L), .Label = c("T1", "T2"), class = "factor")), .Names = c("factory",
"response", "lci", "uci", "variable"), row.names = c("3", "4",
"5", "6", "7", "8", "9", "10"), class = "data.frame")
## example plot
qplot(response, factory, colour = variable, data = df) +
geom_point() +
geom_errorbarh(aes(xmax = response + uci, xmin = response - lci),
height = .25)
如果你看一下样本情节，我想你会看到我正在追求的东西。谁知道怎么样？ position_dodge似乎很有希望，但我看不出如何使它与点和错误栏一起工作。