hyperframe | R Documentation |
Create a hyperframe: a two-dimensional array in which each column consists of values of the same atomic type (like the columns of a data frame) or objects of the same class.
hyperframe(...,
row.names=NULL, check.rows=FALSE, check.names=TRUE,
stringsAsFactors=NULL)
... |
Arguments of the form |
row.names , check.rows , check.names , stringsAsFactors |
Arguments passed to |
A hyperframe is like a data frame, except that its entries can be objects of any kind.
A hyperframe is a two-dimensional array in which each column consists of values of one atomic type (as in a data frame) or consists of objects of one class.
The arguments ...
are any number of arguments of
the form value
or tag=value
. Each value
will
become a column of the array. The tag
determines the name
of the column.
Each value
can be either
an atomic vector or factor (i.e. numeric vector, integer vector, character vector, logical vector, complex vector or factor)
a list of objects which are all of the same class
one atomic value, which will be replicated to make an atomic vector or factor
one object, which will be replicated to make a list of objects.
All columns (vectors, factors and lists) must be of the same length, if their length is greater than 1.
An object of class "hyperframe"
.
There are methods for
print
, plot
, summary
, with
, split
,
[
, [<-
,
[[
, [[<-
,
$
, $<-
,
names
, as.data.frame
as.list
,
cbind
and rbind
for the class of hyperframes. There is also
is.hyperframe
and as.hyperframe
.
The argument stringsAsFactors
is a logical value (passed to data.frame
)
specifying how to handle pixel values which
are character strings. If TRUE
, character values are
interpreted as factor levels. If FALSE
, they remain
as character strings. The default values of stringsAsFactors
depends on the version of R.
In R versions < 4.1.0
the factory-fresh default is stringsAsFactors=FALSE
and
the default can be changed by setting
options(stringsAsFactors=FALSE)
.
in R versions >= 4.1.0
the default
is stringsAsFactors=FALSE
and there is no option to
change the default.
and \rolf
as.hyperframe
,
as.hyperframe.ppx
,
plot.hyperframe
,
[.hyperframe
,
with.hyperframe
,
split.hyperframe
,
as.data.frame.hyperframe
,
cbind.hyperframe
,
rbind.hyperframe
# equivalent to a data frame
hyperframe(X=1:10, Y=3)
# list of functions
hyperframe(f=list(sin, cos, tan))
# table of functions and matching expressions
hyperframe(f=list(sin, cos, tan),
e=list(expression(sin(x)), expression(cos(x)), expression(tan(x))))
hyperframe(X=1:10, Y=letters[1:10], Z=factor(letters[1:10]),
stringsAsFactors=FALSE)
lambda <- runif(4, min=50, max=100)
if(require(spatstat.random)) {
X <- solapply(as.list(lambda), rpoispp)
} else {
X <- solapply(as.list(lambda), function(lam) runifrect(rpois(1, lam)))
}
h <- hyperframe(lambda=lambda, X=X)
h
h$lambda2 <- lambda^2
h[, "lambda3"] <- lambda^3
h[, "Y"] <- X
h[[2, "lambda3"]]
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