Dear List-Members,
I try to implement a proj.line3d method and to overload this method as follows:
proj.line3d <- function(p, x, y, z, ...)
UseMethod("proj.line3d")
proj.line3d.numeric = function(p, x, y, z, ...) {
# ...
}
proj.line3d.matrix = function(p, x, y, z, ...) {
# ...
}
The code is available on GitHub, specifically in:
https://github.com/discoleo/Rpdb/blob/main/R/proj.R
However, I encountered various issues both with running proj.line3d and with
documenting the functions in order to pass the CRAN-checks.
# ERROR: Executing function
p = c(1,2,3)
line = matrix(c(0,5,2,3,1,4), 2)
proj.line3d(p, line)
# Error in UseMethod("proj.line3d") :
# no applicable method for 'proj.line3d' applied to an object of class
"c('double', 'numeric')"
I do prefer to have the methods named as "proj._name_" so that they are easily
searchable using methods(proj). It's possible to project a point on a line, or
a point on a plane, or other more complex projections. Therefore, more methods
are possible in the future.
methods(proj)
# [1] proj.aov* proj.aovlist* proj.default* proj.line3d
# [5] proj.line3d.matrix proj.line3d.numeric proj.lm
I think it is wise to solve first this issue before solving the documentation
issues.
Many thnaks,
Leonard
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