依赖
library(dplyr)##
## Attaching package: 'dplyr'## The following objects are masked from 'package:stats':
##
## filter, lag## The following objects are masked from 'package:base':
##
## intersect, setdiff, setequal, unionlibrary(ggplot2)数据
dat <- mutate(mtcars, index=1:n())
dat## mpg cyl disp hp drat wt qsec vs am gear carb index
## Mazda RX4 21.0 6 160.0 110 3.90 2.620 16.46 0 1 4 4 1
## Mazda RX4 Wag 21.0 6 160.0 110 3.90 2.875 17.02 0 1 4 4 2
## Datsun 710 22.8 4 108.0 93 3.85 2.320 18.61 1 1 4 1 3
## Hornet 4 Drive 21.4 6 258.0 110 3.08 3.215 19.44 1 0 3 1 4
## Hornet Sportabout 18.7 8 360.0 175 3.15 3.440 17.02 0 0 3 2 5
## Valiant 18.1 6 225.0 105 2.76 3.460 20.22 1 0 3 1 6
## Duster 360 14.3 8 360.0 245 3.21 3.570 15.84 0 0 3 4 7
## Merc 240D 24.4 4 146.7 62 3.69 3.190 20.00 1 0 4 2 8
## Merc 230 22.8 4 140.8 95 3.92 3.150 22.90 1 0 4 2 9
## Merc 280 19.2 6 167.6 123 3.92 3.440 18.30 1 0 4 4 10
## Merc 280C 17.8 6 167.6 123 3.92 3.440 18.90 1 0 4 4 11
## Merc 450SE 16.4 8 275.8 180 3.07 4.070 17.40 0 0 3 3 12
## Merc 450SL 17.3 8 275.8 180 3.07 3.730 17.60 0 0 3 3 13
## Merc 450SLC 15.2 8 275.8 180 3.07 3.780 18.00 0 0 3 3 14
## Cadillac Fleetwood 10.4 8 472.0 205 2.93 5.250 17.98 0 0 3 4 15
## Lincoln Continental 10.4 8 460.0 215 3.00 5.424 17.82 0 0 3 4 16
## Chrysler Imperial 14.7 8 440.0 230 3.23 5.345 17.42 0 0 3 4 17
## Fiat 128 32.4 4 78.7 66 4.08 2.200 19.47 1 1 4 1 18
## Honda Civic 30.4 4 75.7 52 4.93 1.615 18.52 1 1 4 2 19
## Toyota Corolla 33.9 4 71.1 65 4.22 1.835 19.90 1 1 4 1 20
## Toyota Corona 21.5 4 120.1 97 3.70 2.465 20.01 1 0 3 1 21
## Dodge Challenger 15.5 8 318.0 150 2.76 3.520 16.87 0 0 3 2 22
## AMC Javelin 15.2 8 304.0 150 3.15 3.435 17.30 0 0 3 2 23
## Camaro Z28 13.3 8 350.0 245 3.73 3.840 15.41 0 0 3 4 24
## Pontiac Firebird 19.2 8 400.0 175 3.08 3.845 17.05 0 0 3 2 25
## Fiat X1-9 27.3 4 79.0 66 4.08 1.935 18.90 1 1 4 1 26
## Porsche 914-2 26.0 4 120.3 91 4.43 2.140 16.70 0 1 5 2 27
## Lotus Europa 30.4 4 95.1 113 3.77 1.513 16.90 1 1 5 2 28
## Ford Pantera L 15.8 8 351.0 264 4.22 3.170 14.50 0 1 5 4 29
## Ferrari Dino 19.7 6 145.0 175 3.62 2.770 15.50 0 1 5 6 30
## Maserati Bora 15.0 8 301.0 335 3.54 3.570 14.60 0 1 5 8 31
## Volvo 142E 21.4 4 121.0 109 4.11 2.780 18.60 1 1 4 2 32基础作图
欧式坐标
ggplot(dat, aes(x=index, y=mpg)) +
geom_bar(stat="identity") +
theme(axis.text.x = element_blank())
极坐标
ggplot(dat, aes(x=index, y=mpg)) +
geom_bar(stat="identity") +
theme(axis.text.x = element_blank()) +
coord_polar()
方法1：geom_segment + lineend = "round"
ggplot(dat, aes(x=index, xend=index, y=0,yend=mpg)) +
geom_segment(lwd=4, lineend = "round") +
theme(axis.text.x = element_blank()) 
ggplot(dat, aes(x=index, xend=index, y=0,yend=mpg)) +
geom_segment(lwd=4, lineend = "round") +
theme(axis.text.x = element_blank()) +
coord_polar()
在极坐标中似乎不是我们想要的，因为线段的宽度不能极坐标化
方法2：ggchicklet
#remotes::install_gitlab("hrbrmstr/ggchicklet")
ggplot(dat, aes(x=index, y=mpg)) +
ggchicklet::geom_chicklet() +
theme(axis.text.x = element_blank()) 
ggplot(dat, aes(x=index, y=mpg)) +
ggchicklet::geom_chicklet() +
coord_polar() +
theme(axis.text.x = element_blank()) 
在极坐标下出现错误
方法3：elementalist
#remotes::install_github("teunbrand/elementalist")
ggplot(dat, aes(x=index, y = mpg)) +
elementalist::geom_bar_theme(stat="identity",
element = elementalist::element_rect_round(radius = 0.25)) +
theme(axis.text.x = element_blank()) 
ggplot(dat, aes(x=index, y = mpg)) +
elementalist::geom_bar_theme(stat="identity",
element = elementalist::element_rect_round(radius = 0.25)) +
theme(axis.text.x = element_blank()) +
coord_polar()## Error: Polar coordinates not implemented yet. Feel free to leave an issue on the github tracker.
作者说，极坐标这个功能还没有实现😅
最终方法：ggforce::geom_shape()
对x，y进行处理
w <- 0.4
dat2 <- rbind(
mutate(dat, index.new=index-w, mpg=0),
mutate(dat, index.new=index+w, mpg=0),
mutate(dat, index.new=index+w, mpg=mpg),
mutate(dat, index.new=index-w, mpg=mpg)
) ggplot(dat2, aes(x=index.new, y=mpg, group=index)) +
ggforce::geom_shape(radius = unit(1.2, 'mm') ) +
theme(axis.text.x = element_blank())
ggplot(dat2, aes(x=index.new, y=mpg, group=index)) +
ggforce::geom_shape( radius = unit(1.2, 'mm')) +
coord_polar() +
labs(x=NULL, y=NULL) +
theme(axis.text = element_blank(), axis.ticks = element_blank()) 
运行信息
sessionInfo()## R version 4.0.5 (2021-03-31)
## Platform: x86_64-apple-darwin17.0 (64-bit)
## Running under: macOS Big Sur 10.16
##
## Matrix products: default
## BLAS: /Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRblas.dylib
## LAPACK: /Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRlapack.dylib
##
## locale:
## [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
##
## attached base packages:
## [1] stats graphics grDevices utils datasets methods base
##
## other attached packages:
## [1] ggplot2_3.3.5 dplyr_1.0.7
##
## loaded via a namespace (and not attached):
## [1] Rcpp_1.0.7 highr_0.9 pillar_1.6.2
## [4] bslib_0.2.5.1 compiler_4.0.5 jquerylib_0.1.4
## [7] tools_4.0.5 elementalist_0.0.0.9000 ggchicklet_0.5.2
## [10] digest_0.6.27 jsonlite_1.7.2 evaluate_0.14
## [13] lifecycle_1.0.0 tibble_3.1.3 gtable_0.3.0
## [16] pkgconfig_2.0.3 rlang_0.4.11 DBI_1.1.1
## [19] yaml_2.2.1 blogdown_1.4 xfun_0.22
## [22] withr_2.4.2 stringr_1.4.0 knitr_1.33
## [25] generics_0.1.0 vctrs_0.3.8 sass_0.4.0
## [28] grid_4.0.5 tidyselect_1.1.1 glue_1.4.2
## [31] R6_2.5.0 fansi_0.5.0 rmarkdown_2.10
## [34] bookdown_0.23 polyclip_1.10-0 tweenr_1.0.2
## [37] farver_2.1.0 purrr_0.3.4 magrittr_2.0.1
## [40] MASS_7.3-53.1 scales_1.1.1 ellipsis_0.3.2
## [43] htmltools_0.5.1.1 assertthat_0.2.1 ggforce_0.3.3
## [46] colorspace_2.0-2 labeling_0.4.2 utf8_1.2.2
## [49] stringi_1.7.3 munsell_0.5.0 crayon_1.4.1