Body mass, numerical abundance and biomass abundance {cheddar} | R Documentation |
Body mass, numerical abundance and biomass abundance
Description
Convenience functions for accessing log10-transformed body mass, M, numerical abundance, N, and biomass abundance, B.
Usage
Log10M(community)
Log10N(community)
Biomass(community)
Log10Biomass(community)
Log10MNBiomass(community)
RCMRatio(community)
Log10RCMRatio(community)
CRMRatio(community)
Log10CRMRatio(community)
Arguments
community |
an object of class |
Details
Log10M
, Log10N
, Biomass
, Log10Biomass
and
each return a value per node. Log10MNBiomass
returns a matrix with a row
per node and columns ‘Log10M’, ‘Log10N’ and ‘Log10Biomass’. These functions
are all suitable for use with NPS
.
RCMRatio
returns the ratio between the resource and consumer body mass
for every trophic link. Log10RCMRatio
returns the same data
log10-transformed. CRMRatio
and Log10CRMRatio
are analagous
functions that return the ratio between the consumer and resource body mass.
These functions are all suitable for use with TLPS
.
Value
A vector of length NumberOfNodes
or a vector of length
NumberOfTrophicLinks
Author(s)
Lawrence Hudson
See Also
NumberOfNodes
, NPS
,
NumberOfTrophicLinks
, TLPS
Examples
data(TL84)
NPS(TL84, c('M', 'Log10M', 'N', 'Log10N', 'Biomass', 'Log10Biomass'))
NPS(TL84, 'Log10MNBiomass')
TLPS(TL84, link.properties=c('Log10RCMRatio', 'Log10CRMRatio'))