getXY {IDPmisc} | R Documentation |
The function accepts one- or two dimensional data, checks them for compatibility and gives a dataframe back.
getXY(x, y = NULL, unidim.allowed = TRUE)
x |
Vector, matrix, dataframe or list. If x is a vector,
the second dimension may be defined by argument y . If
x is a matrix, dataframe or list and a second column or
element exists, this second element is used instead of y . |
y |
Optional vector of the same length as x .
When argument x is onedimensional, argument y does
not exist and unidim.allowed is TRUE, argument x is
coerced to a vector and returned as y component where the
resulting x is just the index vector 1:n. |
unidim.allowed |
Logical.
When unidim.allowed is TRUE (=default), one and two dimensional input is accepted for any reasonable combination of x and y. In this mode getXY behaves very similar to xy.coords
An error message is returned, when unidim.allowed is
FALSE, argument x is onedimenional und y does not
exist. |
Input is checked for compatibility: When x
is a list, the
first two elements must have identical length. When y
is
defined, x
must be one dimensional and must have the same
length as argument y
. When onedim.allowed
is
FALSE, input must be twodimensional.
When input is one dimensional and unidim
is TRUE, y
gives the numbers of elements back.
Function works similar to xy.coords
dataframe with the components x
and y
Rene Locher
getXY(3:4, 1:2) getXY(matrix(1:4,ncol=2)) getXY(as.data.frame(matrix(1:4,ncol=2))) getXY(4:1) getXY(list(a=1:2,b=9:10))