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Fixes network layouts where x or y are constant #32

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Fixes network layouts where x or y are constant #32

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4c38875
Added new scale function to utilities
kippjohnson Oct 16, 2018
af8fd77
Incorporated scale2()
kippjohnson Oct 16, 2018
8d3ab5e
Actually added scale2() function
kippjohnson Oct 16, 2018
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4 changes: 2 additions & 2 deletions R/fortify-network.R
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Expand Up @@ -126,8 +126,8 @@ fortify.network <- function(model, data = NULL,
names(nodes) = c("x", "y")

# rescale coordinates
nodes$x = scale(nodes$x, center = min(nodes$x), scale = diff(range(nodes$x)))
nodes$y = scale(nodes$y, center = min(nodes$y), scale = diff(range(nodes$y)))
nodes$x = scale2(nodes$x)
nodes$y = scale2(nodes$y)

# import vertex attributes
for (y in network::list.vertex.attributes(x)) {
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14 changes: 14 additions & 0 deletions R/utilities.R
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Expand Up @@ -35,3 +35,17 @@ theme_facet <- function(base_size = 12, base_family = "", ...) {
...
)
}

#' A new scale function
#'
#' Appropriately handles the case for scaling if a column is constant
#' @param xx The value to scale
scale2 <- function(xx){
s <- diff(range(xx))
if(s==0){
res <- rep(0.5, length.out=length(xx))
}else{
res <- scale(xx, center = min(xx), scale = s)
}
return(res)
}