create_curve_set: Create a curve_set object

View source: R/curve-set.r

create_curve_setR Documentation

Create a curve_set object


Create a curve_set object out of a list in the right form.


create_curve_set(curve_set, ...)



A list containing the element obs, and optionally the elements r, sim_m and theo. See details.


For expert use only.


The function is used to clump together the functional data in the form that can be handled by the other GET functions (forder, central_region, global_envelope_test etc.). The function create_curve_set takes care of checking the content of the data, and saves relevant information of the curves for global envelope methods to be used in particular for plotting the results with graphical interpretation.

obs must be either

  • a vector containing the data function/vector, or

  • a matrix containing the s data functions/vectors, in which case it is assumed that each column corresponds to a data function/vector.

If given, r describes the 1- or 2-dimensional argument values where the functions/vectors have been observed (or simulated). It must be either

  • a vector,

  • a data.frame with columns "x", "y", "width" and "height", where the width and height give the width and height of the pixels placed at x and y, or

  • a data.frame with columns "xmin", "xmax", "ymin" and "ymax" giving the corner coordinates of the pixels where the data have been observed.

If obs is a vector, sim_m must be a matrix containing the simulated functions. Each column is assumed to correspond to a function, and the number of rows must match the length of obs. If obs is a matrix, sim_m is ignored.

If obs is a vector, theo can be given and it should then correspond to a theoretical function (e.g., under the null hypothesis). If present, its length must match the length of obs.


An object of class curve_set containing the data. If the argument values are two-dimensional, then the curve_set is additionally a curve_set2d object.

See Also

plot.curve_set, plot.curve_set2d


# 1d
cset <- create_curve_set(list(r = 1:10, obs = matrix(runif(10*5), ncol=5)))
# 2d
cset <- create_curve_set(list(r = data.frame(x=c(rep(1:3, 3), 4), y=c(rep(1:3, each=3), 1),
                                           width=1, height=1),
                              obs = matrix(runif(10*5), ncol=5)))

GET documentation built on Nov. 16, 2022, 5:09 p.m.