Simplify Coarse Fraction Data
Simplify multiple coarse fraction (>2mm) records by horizon.
simplifyFragmentData(rf, id.var, nullFragsAreZero = TRUE)
rf |
a |
id.var |
character vector with the name of the column containing an ID
that is unique among all horizons in |
nullFragsAreZero |
should fragment volumes of NULL be interpreted as 0? (default: TRUE), see details |
This function is mainly intended for the processing of NASIS pedon/horizon
data which contains multiple coarse fragment descriptions per horizon.
simplifyFragmentData will "sieve out" coarse fragments into the USDA
classes, split into hard and para- fragments.
The simplifyFragmentData function can be applied to data sources
other than NASIS by careful use of the id.var argument. However,
rf must contain coarse fragment volumes in the column "fragvol",
fragment size (mm) in columns "fragsize_l", "fragsize_r", "fragsize_h", and
fragment cementation class in "fraghard".
Examples:
D.E. Beaudette
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