spg

soil profile property graphs with 'calibrated' pit photo backdrop.

Usage

spg(
  spc,
  filename,
  prop,
  destfile = NULL,
  depth_min = 0,
  depth_max = 200,
  prop_min = NULL,
  prop_max = NULL,
  spline = FALSE,
  midpoint = FALSE,
  xlab = prop,
  ylab = "Depth, cm",
  no_data_value = NULL,
  panel_ontop = TRUE,
  prop_linetype = "longdash",
  prop_linewidth = 1,
  prop_color = "yellow",
  prop_breaks = 6
)

Arguments

spc

SoilProfileCollection

filename

filename

prop

character. Property column name

destfile

Optional: output filename

depth_min

Minimum image depth (cm)

depth_max

Maximum image depth (cm)

prop_min

Property minimum value

prop_max

Property maximum value

spline

Default: FALSE

midpoint

Default: FALSE If spline=FALSE use midpoints of horizons?

xlab

x-axis label

ylab

y-axis label

no_data_value

Replacement value for NA in prop

panel_ontop

Default: TRUE

prop_linetype

Default: longdash

prop_linewidth

Default: 1

prop_color

Default: "yellow"

prop_breaks

Default: 6

Value

ggplot plot object; also shown on graphics pane as side-effect.

Examples

# \donttest{
library(soilDB)

spc <- readRDS(system.file("extdata", "aecpedons.rds",
                   package = "SoilProfileGraphs"))[4, ]
lab <- soilDB::fetchLDM(spc$pedlabsampnum)
#> single result set, returning a data.frame
#> converting profile IDs from integer to character

spg(
  system.file("extdata",
              "sueredo.png",
              package = "SoilProfileGraphs"),
  spc = lab,
  prop = "sand_total",
  depth_max = 185,
  prop_min = 65,
  prop_max = 95
)
#> 2 depth range(s) with missing analytical data removed from 34504.
#> Warning: Removed 12 rows containing missing values or values outside the scale range
#> (`geom_path()`).

# }