小编Set*_*eth的帖子

是否可以在R ggplot中将自定义图像(例如png格式)显示为geom_point？

library(png)
pic1 <- readPNG("pic1.png")

png("Heatmap.png", units="px", width=3200, height=3200, res=300)
ggplot(data_frame, aes(medium, day, fill = Transactions))  +
   geom_tile(colour="white")  +
   facet_grid(dime3_year~dime3_month) + 
   scale_fill_gradient(high="blue",low="white") +
   theme_bw() + 
   geom_point(aes(dime3_channel, day, size=Conv,alpha=Conv,image=(annotation_raster(pic1,xmin=0,ymin=0,xmax=5,ymax=5)),color="firebrick")) +

给出错误:

不知道如何自动选择proto/environment类型的对象的比例.默认为连续错误:美学必须是长度为1或与dataProblems相同的长度:( annotation_raster(conv_pic,xmin = 0,ymin = 0,xmax = 5,ymax = 5))