prior_signature_data: Measurement from previous studies

Description Usage Format References

Description

This table summarizes measurements made by David (2006). Each line gives the mean, standard-deviation and number of samples from measurements made on a give tracer. Values should be log (or log10) transformed if required, similarly to data in signature_data

Usage

1

Format

A data frame with 53940 rows and 10 variables:

Species

name of the species

tracer

name of the tracer, contaminant of isotopic ratio

mean

mean value observed on the sample (no transformation here)

sd

standard value observed on the sample (no transformation here)

n

number of samples used to estimate mean and sd

References

David (2006) Dynamique spatio-temporelle du zooplancton dans l'estuaire de la Gironde et implications au sein du réseau trophique planctonique. Ph.D. Thesis, Univ. de Bordeaux 1, 313pp


Irstea/escroc documentation built on May 17, 2019, 7:43 a.m.