sp.sums.2 {FAwR}

Generates species summaries from a dataframe that contains stem measurements.

Description

This function generates a dataframe object that contains the original stem measurements and appends columns named by log.grades, where log.grades corresponds to the minimum log diameters defined by log.breaks.

Usage

sp.sums.2( x,
	   log.breaks=c(2,5,12,18,32,999),
           log.grades=c("pulp","s4","s3","s2","s1","peeler") )

Arguments

x

The dataframe containing the original stem measurements.

log.breaks

The vector defining the minimum diameters for the log grades defined by log.grades.

log.grades

The vector defining the text labels for the log.breaks.

Details

The function generates summaries, by species, for common statistics used in growth and yield simulations. It performs the same function as the sp.sums function in the Rconifers library.

Value

A dataframe that contains the original stem measurements with the log volumes appended for each species.

Author(s)

Jeff D. Hamann <[e-mail]>

References

Robinson, A.P., and J.D. Hamann. 2010. Forest Analytics with R: an Introduction. Springer.

See Also

rconifers::sp.sums

Examples

# test <- data.frame(a = c(1,2), b = c(3,4))
# show.cols.with.na(test)
# is.na(test$a[2]) <- TRUE
# show.cols.with.na(test)