This formed my primary matrix.įor ordination to be interesting (because let’s be honest, it doesn’t give very much information just as is), you need a secondary matrix with covariates or other associated data. I had per cent cover values for each observed species at each site, for plains and slopes. Ecological data can be collected in a variety of forms, so the actual cell values can be presence/absence (binary data), cover/abundance values (proportion data), or counts (count data). This is true for R and PC-ORD (I used version 6).
For ordination, the data are required to have species as columns, and plots/sites/samples as rows.
0 kommentar(er)
