R Implementation of the SPSS SAMPLE argument. Takes a sample from a xpssFrame object, data frame or matrix.
Usage
xpssSample(x, pct = NULL, n = NULL, from = NULL)
Arguments
x
a (non-empty) data.frame or input data of class "xpssFrame".
pct
atomic numeric, determines the percentage to keep.
n
atomic numeric, specifies the number of cases to keep.
from
atomic numeric, indicates the Basis for n.
Value
Returns a subset of the actual dataset.
Details
xpssSample takes a sample of the specified size from the elements of x either with or without replacement. The subset get specified by pct or n.
pct specifies a percentage value, for the amount of data which should be kept, allowed value range is from 0.01 to 1.
n indicates the amount of values to keep.
from determines the basis for n. from has to be higher then n.