Make a surface plot

Usage

surfaceplot(
  tab,
  coords_name,
  var_name,
  h = 8,
  col.pal,
  mark_points = FALSE,
  title = NULL
)

Arguments

tab: a data-frame containing spatial co-ordinates and the variable to plot
coords_name: name of the two columns that contains the co-ordinates of the points, also used as the axis labels
var_name: name of the column containing the variable to be plotted
h: integer; (optional) controls smoothness of the spatial interpolation as appearing in the MBA::mba.surf() function. Default is 8.
col.pal: Optional; color palette, preferably divergent, use colorRampPalette function from grDevices. Default is the colorblind-friendly diverging palette 'RdBu' from ColorBrewer.
mark_points: Logical; if TRUE, the input points are marked. Default is FALSE.
title: (optional) a title for the plot. Default is no title.

Value

a ggplot object containing the surface plot

Author

Soumyakanti Pan span18@ucla.edu,
Sudipto Banerjee sudipto@ucla.edu

Examples

data(simSpatial)
plot1 <- surfaceplot(simSpatial, coords_name = c("s1", "s2"),
                     var_name = "z_true")
plot1


# try your favourite color palette
plot2 <- surfaceplot(simSpatial, coords_name = c("s1", "s2"),
                     var_name = "z_true",
                     col.pal = hcl.colors(100, "PuOr", rev = TRUE))
plot2