Description Usage Arguments Details Value Author(s) References See Also Examples
Subset species matrix according to relative frequency.
1 | sub.sp.matrix(spmatrix, freq = 0.5, common = NULL)
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spmatrix |
The spmatrix is a standard species matrix with rows for plots and column for species. |
freq |
The value of relative frequency to be specified, species with higher relative frequency will be reserved in the output matrix. |
common |
The number of most common (according to relative frequency) species to be specified. |
sub.sp.matrix will select the species whose relative frequency above 0.5 (default), or select certain number of species according to relative frequency.
A subset matrix with certain number of top relative frequency.
Jinlong Zhang jinlongzhang01@gmail.com
None
See Also subset
1 2 3 4 5 6 7 | library(vegan)
data(BCI)
## Select the species whose relative frequency
## more than 0.5, from BCI data
sub <- sub.sp.matrix(BCI, freq = 0.5)
## Select the top 30 species according to relative frequency
sub <- sub.sp.matrix(BCI, common = 30)
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