Installation
Get the stable version from CRAN:
install.packages('soilDB', dep=TRUE)
Get the development version from Github:
devtools::install_github("ncss-tech/soilDB", dependencies=FALSE, upgrade_dependencies=FALSE)
Documentation
http://ncss-tech.github.io/AQP/
Examples
library(soilDB)
library(plyr)
library(reshape2)
# search by series name
s <- fetchKSSL(series='auburn')
# search by bounding-box
# s <- fetchKSSL(bbox=c(-120, 37, -122, 38))
# how many pedons
length(s)
# plot
par(mar=c(0,0,0,0))
plot(s, name='hzn_desgn', max.depth=150)
# get morphologic data too
# get lab and morphologic data
s <- fetchKSSL(series='auburn', returnMorphologicData = TRUE)
# extract SPC
pedons <- s$SPC
# simplify color data
s.colors <- simplifyColorData(s$morph$phcolor, id.var = 'labsampnum')
# merge color data into SPC
h <- horizons(pedons)
h <- join(h, s.colors, by='labsampnum', type='left', match='first')
horizons(pedons) <- h
# check
par(mar=c(0,0,0,0))
plot(pedons, color='moist_soil_color', print.id=FALSE)
# simplify fragment data
s.frags <- simplfyFragmentData(s$morph$phfrags, id.var='labsampnum')
# merge fragment data into SPC
h <- horizons(pedons)
h <- join(h, s.frags, by='labsampnum', type='left', match='first')
horizons(pedons) <- h
# check
par(mar=c(0,0,3,0))
plot(pedons, color='total_frags_pct', print.id=FALSE)