..
grouped_ppp(
formula,
data,
coords = ~x + y,
window = owin(xrange = range(.x), yrange = range(.y)),
...
)Function grouped_ppp() returns a groupedHyperframe
with one-and-only-one
ppp-hypercolumn.
formula in the format of
m1+m2 ~ y+x1+x2 | g1/g2,
where \(m_i\)'s are one or more marks,
\(y\) and \(x_j\)'s are the endpoint and predictor(s) for downstream analysis,
and \(g_k\) are one or more nested grouping structure
formula, variable names
of \(x\)- and \(y\)-coordinates in data.
Default ~x+y.
an observation window owin,
default is the \(x\)- and \(y\)-span of coords in data.
additional parameters, currently not in use