Description Usage Arguments Value Examples
Computes the variety (number of distinct types) or simple diversity of an entity. It is also known as richness.
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data |
A numeric matrix with entities i in the rows and categories j in the columns. Cells show the respective value (value of abundance) of entity i in the category j. It can also be a transpose of the previous matrix, that is, a matrix with categories in the rows and entities in the columns. Yet in that case, the argument "category_row" has to be set to TRUE. The matrix must include names for the rows and the columns. The argument "data", also accepts a dataframe with three columns in the following order: entity, category and value. |
sort |
Indicates whether results should be ordered or not. Define it to FALSE to avoid ordering. |
decreasing |
If argument "sort" is set to TRUE, this argument indicates descending order. The default value is TRUE. |
category_row |
A flag to indicate that categories are in the rows. The analysis assumes that the categories are in the columns of the matrix. If the categories are in the rows and the entities in the columns, then the argument "category_row" has to be set to TRUE. The default value is FALSE. |
A dataframe with values of variety for each entity.
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Loading required package: proxy
Attaching package: ‘proxy’
The following objects are masked from ‘package:stats’:
as.dist, dist
The following object is masked from ‘package:base’:
as.matrix
Loading required package: reshape2
Loading required package: foreign
variety
Canada 27
China 24
South Africa 16
Portugal 11
Latvia 10
New Zealand 9
Chile 7
Saudi Arabia 7
Uruguay 4
Vietnam 4
variety
Canada 27
Chile 7
China 24
Latvia 10
New Zealand 9
Portugal 11
Saudi Arabia 7
South Africa 16
Uruguay 4
Vietnam 4
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