[R 1.6.1]
In biplot() there is coded:
if (missing(xlim) && missing(ylim))
xlim <- ylim <- rangx1 <- rangx2 <- range(rangx1, rangx2)
else if (missing(xlim))
xlim <- rangx1
else ylim <- rangx2
With the code above, ylim will be overwritten
if xlim _and_ ylim are given as arguments.
To accept ylim, the code could be:
if (missing(xlim) && missing(ylim))
xlim <- ylim <- rangx1 <- rangx2 <- range(rangx1, rangx2)
else{
if (missing(xlim))
xlim <- rangx1
if (missing(ylim))
ylim <- rangx2
}
Wolfram
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