Fortify a "decorana" object.

Fortifies an object of class "decorana" to produce a data frame of the selected axis scores in long format, suitable for plotting with ggplot2::ggplot().

Usage

# S3 method for class 'decorana'
fortify(model, data, axes = 1:4, layers = c("sites", "species"), ...)

# S3 method for class 'decorana'
tidy(x, data, axes = 1:4, layers = c("sites", "species"), ...)

Arguments

model, x

an object of class "decorana", the result of a call to vegan::decorana().

data

currently ignored.

axes

numeric; which axis scores are required?

layers

character; the scores to extract in the fortified object.

...

additional arguments passed to vegan::scores.decorana().

Value

A data frame in long format containing the ordination scores. The first two components are the axis scores.

Details

TODO

Author

Gavin L. Simpson

Examples

library("vegan")

data(dune)

sol <- decorana(dune)
head(fortify(sol))
#> # A tibble: 6 × 6
#>   score label    dca1   dca2    dca3    dca4
#>   <fct> <chr>   <dbl>  <dbl>   <dbl>   <dbl>
#> 1 sites 1     -0.758  -1.34  -0.103  -0.0361
#> 2 sites 2     -0.533  -0.771  0.469  -0.298 
#> 3 sites 3      0.0669 -0.502 -0.0855 -0.479 
#> 4 sites 4      0.0803 -0.280  0.664  -0.0898
#> 5 sites 5     -1.04   -0.438 -0.207  -0.244 
#> 6 sites 6     -0.915  -0.184 -0.637   0.0348
head(fortify(sol, layers = "species"))
#> # A tibble: 6 × 6
#>   score   label      dca1    dca2   dca3   dca4
#>   <fct>   <chr>     <dbl>   <dbl>  <dbl>  <dbl>
#> 1 species Achimill -2.28  -2.20    1.34  -0.765
#> 2 species Agrostol  1.68   0.344   0.868 -0.431
#> 3 species Airaprae -2.65   2.63    0.622 -1.28 
#> 4 species Alopgeni  1.08  -0.0492 -0.995 -2.02 
#> 5 species Anthodor -2.51   1.37    0.858 -0.536
#> 6 species Bellpere -0.919 -0.841   1.61  -1.08