Supplement 3. Scripts and data for estimating quantile equivalence for Ambystoma tigrinum trends (Dixon and Pechmann 2005) with the quantreg package in R.
2016-08-04T12:12:11Z (GMT)
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Description
trends.rtf is a text file with commands for implementing the quantile regression analyses on Ambystoma tigrinum trends in the text file Ambystoma.tigrinum.csv using the quantreg package in R.
Ambystoma.tigrinum.csv
Column 1: species - amphibian species,
Column 2: year - year of count,
Column 3: abundance - numbers per constant effort search,
Column 4: lagabundance - abundance lagged 1 year.
trends.rtf
