rcarbon: plot.SpdModelTest – R documentation

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plot.SpdModelTest

Plot result of Monte-Carlo simulation of observed versus modelled SPDs

Description

The function visualises the observed summed probability distribution of radiocarbon dates along with a simulation envelope for the null model and regions of positive and negative deviation.

Usage

## S3 method for class 'SpdModelTest'
plot(
  x,
  calendar = "BP",
  type = "spd",
  ylim = NA,
  xlim = NA,
  col.obs = "black",
  lwd.obs = 0.5,
  xaxs = "i",
  yaxs = "i",
  bbty = "f",
  bbtyRet = TRUE,
  drawaxes = TRUE,
  ...
)

Arguments

`x`	A `SpdModelTest` class object generated using the `modelTest` function.
`calendar`	Either `'BP'` or `'BCAD'`. Indicate whether the calibrated date should be displayed in BP or BC/AD. Default is `'BP'`.
`type`	Whether to display SPDs ('spd') or rates of change ('roc'). Default is 'spd'.
`ylim`	the y limits of the plot.
`xlim`	the x limits of the plot. In BP or in BC/AD depending on the choice of the parameter `calender`. Notice that if BC/AD is selected BC ages should have a minus sign (e.g. `c(-5000,200)` for 5000 BC to 200 AD).
`col.obs`	Line colour for the observed SPD.
`lwd.obs`	Line width for the observed SPD.
`xaxs`	The style of x-axis interval calculation (see `par`)
`yaxs`	The style of y-axis interval calculation (see `par`)
`bbty`	Display options; one between `'b'`,`'n'`,and `'f'`. See details below.
`bbtyRet`	Whether details on the intervals of positive and negative deviations are returned. Default is TRUE.
`drawaxes`	A logical value determining whether the axes should be displayed or not. Default is TRUE.
`...`	Additional arguments affecting the plot

Details

The argument bbty controls the display options of the Monte-Carlo Test. Default settings (bbty='f') displays the observed SPD (solid black line), the simulation envelope of the fitted model (shaded grey polygon) and regions of significance positive (red semi-transparent rectangle) and negative (blue semi-transparent rectangle) deviation. The option bbty='b' removes the regions of positive/negative deviations, whilst the option bbty='n' displays the simulation envelope on existing plot.

plot.SpdModelTest

Description

Usage

Arguments

Details

See Also

rcarbon

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