row column heatmap plot with overlayed circle (fill and size) in r

Question

Here is a graph I am trying to develop:

I have row and column coordina

Answer 1

Here it is better to use geom_tile (heatmap).

require(ggplot2)
  ggplot(dataf, aes(y = factor(rowv),
             x = factor(columnv))) +        ## global aes
  geom_tile(aes(fill = rectheat)) +         ## to get the rect filled
  geom_point(aes(colour = circlefill, 
                   size =circlesize))  +    ## geom_point for circle illusion
  scale_color_gradient(low = "yellow",  
                       high = "red")+       ## color of the corresponding aes
  scale_size(range = c(1, 20))+             ## to tune the size of circles
  theme_bw()