Plot method for the class 'modTempEff'

Description

Plots distributed lags curves from the modTempEff fit.

Usage

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## S3 method for class 'modTempEff'
plot(x, which = c("cold", "heat"), add=FALSE, new=TRUE, 
      var.bayes = FALSE, delta.rr = TRUE, level = 0.95, 
      updown=TRUE, col.shade=NULL, leg=NULL, ...)

Arguments

x

object of class "modTempEff".

which

Which DL curve should be plotted? for cold, heat or both of them (default).

add

logical; if TRUE the fitted DL curve for cold or heat is added to an existing plot.

new

logical indicating if a new device should be opened. If add=TRUE, new is set to FALSE.

var.bayes

logical indicating if the 'Bayesian' rather than the frequentist standard errors should be employed to compute the pointwise confidence intervals to be plotted

delta.rr

logical indicating if the DL curves should be plotted on the log scale or as per cent change in relative risk, i.e. 100*(exp(.)-1).

level

the selected confidence level of the pointwise confidence intervals to be plotted

updown

logical; if TRUE the plotting area is split according to par(mfrow=c(2,1)) when both the cold and heat DL curves are drawn.

col.shade

the color of the shaded area representing the pointwise confidence intervals. If NULL no color is used.

leg

the possible legends to be set on the "topright" side of each plot. When both the cold and heat DL curves are drawn it should be a 2-length vector with the first component refering to the plot of cold.

...

additional arguments, such as xlab, ylab, and lwd.

Details

Takes a fitted "modTempEff" object produced by tempeff() and plots the DL curves for cold and heat effect with relevant pointwise confidence intervals. plot.modTempEff also works with objects with fixed (not estimated) breakpoint, namely fits returned by

tempeff(.., fcontrol=fit.control(it.max=0)).

Note add=TRUE makes sense (and works) only for a single (cold or heat) DL curve to be superimposed to an existing plot.

Value

The function simply plots the required estimated DL curve. If the fitted model includes only a smooth term for the long term trend, plot.modTempEff draws it.

Author(s)

Vito Muggeo

See Also

tempeff

Examples

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  ## Not run: 
  #obj is an object returned by tempeff()
  #plots DL curves for cold and heat with 95% pointwise CI
  # using frequentist standard errors
  plot(obj)
  
  #plots the estimated DL curve only for heat with 90% pointwise CI
  # using bayesian standard errors
  plot(obj, "heat", var.bayes=TRUE, level=.90)
  
## End(Not run)