ldata: ldata class definition and utilities

In fda.usc: Functional Data Analysis and Utilities for Statistical Computing

ldata class definition and utilities

Description

ldata is a list with two type of objects:

• df is a data frame with the multivariate data with n rows.

• ... fdata objects of class fdata with n rows.

Usage

ldata(df, ..., mfdata)

## S3 method for class 'ldata'
names(x)

is.ldata(x)

## S3 method for class 'ldata'
x[i, row = FALSE]

## S3 method for class 'ldata'
subset(x, subset, ...)

## S3 method for class 'ldata'
plot(x, ask = FALSE, color, var.name, ...)

Arguments

df	data frame
...	Further arguments passed to methods.
mfdata	list of fdata objects
i	index
row	logical If FALSE (by default), i index selects the variables. If TRUE, i index selects the observations.
subset	subset
ask	logilcal If TRUE (and the R session is interactive) the user is asked for input, before a new figure is drawn.
color	colors to interpolate; must be a valid argument to colorRampPalette.
var.name	name of continuous univariate variable used in color argument
ldata, x	object of class ldata

Examples

data(tecator)
ab0 <- tecator$absorp.fdata
ab1 <- fdata.deriv(ab0)
ab2 <- fdata.deriv(ab0,nderiv=2)
ldat<-ldata(tecator$y,ab1=ab1,ab2=ab2)
is.ldata(ldat)
class(ldat)
plot(ldat[[1]])
plot(ldat[[2]]) 
# plot(ldat)
# plot(ldat,var.name="Fat")

fda.usc documentation built on Oct. 17, 2022, 9:06 a.m.