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hybridogram

This package takes a list of hybridization experiment results in a simple text file:

species 1 species 2 code
Phoca largha Phoca vitulina 1
Phoca largha Phoca caspica 2
Phoca caspica Pusa hispida 2

Another text file contains code for the different hybridization result types:

code description
1 No hybrid
2 Documented hybrid
3 Hybrid with same 3rd species

Call the hybridogram function:

library(hybridogram)

V1 <- c("Phoca largha","Phoca largha","Phoca caspica")
V2 <- c("Phoca vitulina","Phoca caspica","Pusa hispida")
V3 <- c(2,3,3)
hybrid_data <- data.frame(V1,V2,V3)
C1 <- c(1,2,3)
C2 <- c("No hybrid","Documented hybrid","Hybrid with same 3rd species")
codes <- data.frame(C1,C2)
hybridogram(hybrid_data, codes)

This will produce a heat map, which is the hybridogram. It is a square and symmetric heat map showing the hybrid relationships between all pairs of species. A color legend in the lower right corner shows what color each code is represented by.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.