RDA Pigments

Statistical analysis related to the manuscript "Tracking centennial changes in algal community composition and biomass using subfossil pigments in a high mountain lake (Sierra Nevada, Spain)". Journal:Biogeosciences. R codes for stepwise RDA analysis is shown. Pigment variable refer to the matrix of the carotenoid pigments, it is the dependent matrix variable. Ambien variable refer to the explicative matrix variable with climate variables (MATA, APA and SPI variables). Pigments are Hellinger transformed and climate variables are relative scale transformed.