IPMpack (version 2.1)

picGrow: Makes pictures of data with growth models

Description

Takes the data file and a growth object and shows the model fit over the data.

Usage

picGrow(dataf, growObj, mainTitle = "Growth",...)

Arguments

dataf

a dataframe with columns `size' and `sizeNext'(`size' is continuous stage variable at t, `sizeNext' is stage variable at t+1); facultatively, dataf may include `covariate' and `covariateNext' for a single discrete covariate, indicating values at t, and at t+1, respectively; these must take values of sequential integers, starting at `1'. For models fitting growth increment, 'incr' or 'logincr' may be directly provided as a column in the dataframe, otherwise they are calculated as dataf$sizeNext-dataf$size or log(dataf$sizeNext - dataf$size), respectively.

growObj

an object of class growthObj that contains a fit for which R has methods for the function "predict".

mainTitle

a character string that will be used as in the `main' argument of plot. Defaults to `Growth'.

...

other arguments to plot

Value

Returns nothing.

Details

Note that this model will only work with growth objects that contain objects of class glm or lm, i.e. ones for which R has defined methods for the function "predict".

See Also

makeGrowthObj, picSurv

Examples

dff <- generateData()
gr1 <- makeGrowthObj(dff)
picGrow(dff, gr1)