geom_tile [heatmap]

Published by onesixx on

https://ggplot2.tidyverse.org/reference/geom_tile.html
https://www.r-graph-gallery.com/heatmap
https://stagraph.com/HowTo/Plot/Geometries/Geom/tile

geom_tile, geom_rectgeom_raster

geom_tilegeom_rect는 같은데 파라미터가 다르다.
– geom_tile()은 tile의 중심과 크기를 사용하고, (x,y,width, height)
– geom_rect()는 tile의 모서리4개의 위치로 (xmin, xmax, ymin, ymax) 를 사용한다.
geom_raster()는 tile의 크기가 같을때, 성능이 좋은 geom_tile과 같다.
cf) geom_contour()

geom_tile(mapping=NULL, data=NULL, stat="identity", position="identity", ..., 
         linejoin = "mitre", 
         na.rm = FALSE, show.legend = NA, inherit.aes = TRUE)

geom_raster(mapping=NULL, data=NULL, stat="identity",  position="identity", ..., 
         hjust = 0.5, vjust = 0.5, interpolate = FALSE, 
         na.rm = FALSE,   show.legend = NA,  inherit.aes = TRUE)
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http://www.sthda.com/english/wiki/ggplot2-quick-correlation-matrix-heatmap-r-software-and-data-visualization
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Categories: ggplot2

onesixx

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