convert_spdf_for_ggplot2: convert_spdf_for_ggplot2

In kmayerb/spcv: a minimalist package for anticipating prediction errors in spatial interpolation through cross validation

Description

A helper function that converts the SpatialPointDataFrame to a long-form output format plottable in ggplot2. In the context of spcv it is useful for plotting the output of gstat::idw(). The var_name argument defaults to "var1.pred" the column of interpolation predictions produced by gstat::idw(). This variable is renamed to "z" in the output data.frame.

Usage

convert_spdf_for_ggplot2(df.sp, var_name = "var1.pred")

Arguments

df.sp	a SpatialPointsDataFrame object (for more info on this class of object see the sp package)
var_name	a string object specifying the column in the SpatialPointsDataFrame containing the variable to be defined as z in the ggplot ready output data.frame

Value

df a data.frame object in long from for compatability with ggplot2; the var_name of interest is renamed z

kmayerb/spcv documentation built on May 26, 2019, 2:34 a.m.