Class

Class for representing luminescence curve data.

Usage

# S4 method for class 'RLum.Data.Curve'
show(object)

# S4 method for class 'RLum.Data.Curve'
set_RLum(
  class,
  originator,
  .uid,
  .pid,
  recordType = NA_character_,
  curveType = NA_character_,
  data = matrix(0, ncol = 2),
  info = list()
)

# S4 method for class 'RLum.Data.Curve'
get_RLum(object, info.object = NULL)

# S4 method for class 'RLum.Data.Curve'
length_RLum(object)

# S4 method for class 'RLum.Data.Curve'
names_RLum(object)

# S4 method for class 'RLum.Data.Curve'
bin_RLum.Data(object, bin_size = 2)

# S4 method for class 'RLum.Data.Curve'
smooth_RLum(object, k = NULL, fill = NA, align = "right", method = "mean")

# S4 method for class 'RLum.Data.Curve'
melt_RLum(object)

Arguments

object: get_RLum, length_RLum, names_RLum (required): an object of class RLum.Data.Curve
class: set_RLum; character (required): name of the RLum class to create
originator: set_RLum; character (automatic): contains the name of the calling function (the function that produces this object); can be set manually.
.uid: set_RLum; character (automatic): sets an unique ID for this object using the internal C++ function create_UID.
.pid: set_RLum; character (with default): option to provide a parent id for nesting at will.
recordType: set_RLum; character (optional): record type (e.g., "OSL")
curveType: set_RLum; character (optional): curve type (e.g., "predefined" or "measured")
data: set_RLum; matrix (required): raw curve data. If data itself is a RLum.Data.Curve-object this can be used to re-construct the object (see details), i.e. modified parameters except .uid, .pid and originator. The rest will be subject to copy and paste unless provided.
info: set_RLum; list (optional): info elements
info.object: get_RLum character (optional): name of the wanted info element
bin_size: integer (with default): set number of channels used for each bin, e.g. bin_size = 2 means that two channels are binned.
k: smooth_RLum; integer (with default): window for the rolling mean; must be odd for rollmedian. If nothing is set k is set automatically
fill: smooth_RLum; numeric (with default): a vector defining the left and the right hand data
align: smooth_RLum; character (with default): specifying whether the index of the result should be left- or right-aligned or centred (default) compared to the rolling window of observations, allowed "right", "center" and "left"
method: smooth_RLum; character (with default): defines which method should be applied for the smoothing: "mean" or "median"

Value

set_RLum

Returns an RLum.Data.Curve object.

get_RLum

A matrix with the curve values or
only the info object if info.object was set.

length_RLum

Number of channels in the curve (row number of the matrix)

names_RLum

Names of the info elements (slot info)

bin_RLum.Data

Same object as input, after applying the binning.

smooth_RLum

Same object as input, after smoothing

melt_RLum

Flat data.frame with X, Y, TYPE, UID

Methods (by generic)

show(RLum.Data.Curve): Show structure of RLum.Data.Curve object
set_RLum(RLum.Data.Curve): Construction method for RLum.Data.Curve object. The slot info is optional and predefined as empty list by default.
get_RLum(RLum.Data.Curve): Accessor method for RLum.Data.Curve object. The argument info.object is optional to directly access the info elements. If no info element name is provided, the raw curve data (matrix) will be returned.
length_RLum(RLum.Data.Curve): Returns the length of the curve object, which is the maximum of the value time/temperature of the curve (corresponding to the stimulation length)
names_RLum(RLum.Data.Curve): Returns the names info elements coming along with this curve object
bin_RLum.Data(RLum.Data.Curve): Allows binning of specific objects
smooth_RLum(RLum.Data.Curve): Smoothing of RLum.Data.Curve objects using a rolling mean or median. In particular the internal function .smoothing is used.
melt_RLum(RLum.Data.Curve): Melts RLum.Data.Curve objects into a flat data.frame to be used in combination with other packages such as ggplot2.

Slots

recordType

Object of class "character" containing the type of the curve (e.g. "TL" or "OSL")

curveType

Object of class "character" containing curve type, allowed values are "measured" or "predefined"

data

Object of class matrix containing curve x and y data. 'data' can also be of type RLum.Data.Curve to change object values without de-constructing the object. For example:

set_RLum(class = 'RLum.Data.Curve',
         data = Your.RLum.Data.Curve,
         recordType = 'never seen before')

would just change the recordType. Missing arguments the value is taken from the input object in 'data' (which is already an RLum.Data.Curve object in this example)

Note

The class should only contain data for a single curve. For additional elements the slot info can be used (e.g. providing additional heating ramp curve). Objects from the class RLum.Data.Curve are produced by other functions (partly within RLum.Analysis objects), namely: Risoe.BINfileData2RLum.Analysis, read_XSYG2R

Create objects from this Class

Objects can be created by calls of the form set_RLum(class = "RLum.Data.Curve", ...).

Class version

0.5.1

Author

Sebastian Kreutzer, Institute of Geography, Heidelberg University (Germany) , RLum Developer Team

How to cite

Kreutzer, S., 2025. RLum.Data.Curve-class(): Class 'RLum.Data.Curve'. In: Kreutzer, S., Burow, C., Dietze, M., Fuchs, M.C., Schmidt, C., Fischer, M., Friedrich, J., Mercier, N., Philippe, A., Riedesel, S., Autzen, M., Mittelstrass, D., Gray, H.J., Galharret, J., Colombo, M., Steinbuch, L., Boer, A.d., 2025. Luminescence: Comprehensive Luminescence Dating Data Analysis. R package version 1.1.0. https://r-lum.github.io/Luminescence/

Examples


showClass("RLum.Data.Curve")
#> Class "RLum.Data.Curve" [package "Luminescence"]
#> 
#> Slots:
#>                                                                         
#> Name:  recordType  curveType       data originator       info       .uid
#> Class:  character  character     matrix  character       list  character
#>                  
#> Name:        .pid
#> Class:  character
#> 
#> Extends: 
#> Class "RLum.Data", directly
#> Class "RLum", by class "RLum.Data", distance 2

##set empty curve object
set_RLum(class = "RLum.Data.Curve")
#> 
#>  [RLum.Data.Curve-class]
#> 	 recordType: NA
#> 	 curveType: NA
#> 	 measured values: 1
#> 	 .. range of x-values: 0 0
#> 	 .. range of y-values: 0 0 
#> 	 additional info elements: 0

Class `"RLum.Data.Curve"`