Description Usage Arguments Value
Beck's Index
1 | becks(taxa.wide, taxa.rank, master.df, beck.column, beck.version = 1)
|
taxa.wide |
Taxonomic counts aggregated at the specific taxonomic classification (e.g., Order, Family, or Genus) in a wide data format. Use the wide function to prepare the data. |
taxa.rank |
The taxonomic rank used to perform the analysis. You must sepecify either "FAMILY" or "GENUS" (Defualt = "FAMILY"). |
master.df |
A master taxa list including taxonomic ranks Phylum through the specified taxonomic rank (Family or Genus) and the an associated list of tolerance values. The default is set to the master taxa list included in the BIBI package. The master taxa list can be viewed with the following script: master.df <- data(master) |
beck.version |
The version of Beck's Index specified as 1 or 3. The defualt is 1, the orginal Beck's Index: 2(S1) + 1(S2) + 3(S3) where: S# = Taxa richness at each level of Beck's classifications (0-3). Beck's Index version 3 is calculated as specified by PADNR: 3(S0) + 2(S1) + 1(S2) + 3(S3) where: S# = Taxa richness at each level of Beck's classifications (0-3). |
beck.colum |
The name of the column in the master.df that contains Beck values. |
Beck's Biotic Index produces weighted richness values, which favors organisms sensitive to degradation (Beck Classes 0 and 1).
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.