[英]ggplot2 factor x variable breaks geom_area
我一直在嘗試生成具有離散x變量的堆積面積圖(因為我想顯示財務年度,即“ 2013/14”,而不是日歷年度)。 但是,將x軸變量變成一個因子會阻止在最終圖表中呈現幾何圖形。
有沒有解決的辦法?
library(ggplot2)
dat <- structure(list(year = c(13, 13, 14, 14, 15, 15),
group_lvl = structure(c(1L, 2L, 1L, 2L, 1L, 2L),
.Label = c("a", "b"), class = "factor"),
val = c(35, 65, 50, 50, 75, 25)),
.Names = c("year", "group_lvl", "val"), row.names = c(NA, -6L),
class = "data.frame")
dat
year group_lvl val
1 13 a 35
2 13 b 65
3 14 a 50
4 14 b 50
5 15 a 75
6 15 b 25
ggplot(dat, aes(x = year, y = val)) +
geom_area(aes(fill = group_lvl), position = "stack")
dat$year <- factor(dat$year)
ggplot(dat, aes(x = year, y = val)) +
geom_area(aes(fill = group_lvl), position = "stack")
sessionInfo()
R version 3.3.0 (2016-05-03)
Platform: i386-w64-mingw32/i386 (32-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1
locale:
[1] LC_COLLATE=English_United Kingdom.1252 LC_CTYPE=English_United Kingdom.1252
[3] LC_MONETARY=English_United Kingdom.1252 LC_NUMERIC=C
[5] LC_TIME=English_United Kingdom.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] ggplot2_2.1.0
loaded via a namespace (and not attached):
[1] labeling_0.3 colorspace_1.2-6 scales_0.4.0 plyr_1.8.3 tools_3.3.0
[6] gtable_0.2.0 Rcpp_0.12.4 grid_3.3.0 digest_0.6.9 munsell_0.4.3
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