[R] symm parameter of heatmap

[Aziz, Muhammad Fayez]

Hi,



What exactly is the difference between using symm=TRUE and symm=FALSE in a heatmap. More elaborately, when symm=FALSE, what does the heatmap plots because it seems like it changes the scale and makes it asymmetric, even if x is symmetric and square.



Additionally, is it possible to view the matrix that the heatmap plots? Here is a sample code I have been testing:



rm(list = ls())

g <- graph.full(5) %du% graph.full(5) %du% graph.full(5)
g <- add.edges(g, c(1,6, 1,11, 6, 11))

adjMatrix=get.adjacency(g, sparse=FALSE)

heatmap3(adjMatrix, Rowv = NA, Colv = NA, symm=FALSE)

windows()
heatmap3(adjMatrix, Rowv = NA, Colv = NA, symm=TRUE)



Thanks,

Fayez

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