vegtrans {labdsv}R Documentation

Vegetation Data Transformation

Description

Transforms vegetation abundances according to an arbitrary specified vector

Usage

vegtrans(taxa,code,value)

Arguments

taxa the original vegetation (or other taxon) data.frame
code a vector containing the set of values appearing in the original data.frame
value a vector containing the set of respective values to substitute

Details

Performs a respective substitution to transform specific values in an initial data.frame to other specified values.

Value

a data.frame of transformed vegetation

Note

Vegetation data are often collected in arbitrary abundance schemes (e.g. Braun-Blanquet, Domin, etc.) which have no direct algebraic transformation (e.g. log). This function transforms coded abundances to arbitrary importance values as specified.

Author(s)

David W. Roberts droberts@montana.edu

References

http://ecology.msu.montana.edu/labdsv/R/labdsv

See Also

decostand, wisconsin

Examples

    data(bryceveg)
    old <- c(0.2,0.5,1.0,2.0,3.0,4.0,5.0,6.0)
    new <- c(0.2,0.5,3.0,15.0,37.5,62.5,85.0,97.5)
    newveg <- vegtrans(bryceveg,old,new)

[Package labdsv version 1.3-1 Index]