
Conversion of Braun-Blanquet codes to cover percentage
Source:R/braun_blanquet-data.R
braun_blanquet-data.RdCover values conversion as coverconvert object.
Object of class coverconvert contains conversion tables usually from a categorical variable (a cover scale) to a numerical one (equivalent percentage cover value). Cover values are stored as range for each level in the scale (minimum and maximum cover value).
Format
An object of class coverconvert.
Examples
names(braun_blanquet)
#> [1] "br_bl" "b_bbds" "ordin."
summary(braun_blanquet)
#> ## Number of cover scales: 3
#>
#> * scale 'br_bl':
#> Levels Range
#> 1 r 0 - 1
#> 2 + 0 - 1
#> 3 1 1 - 5
#> 4 2 5 - 25
#> 5 3 25 - 50
#> 6 4 50 - 75
#> 7 5 75 - 100
#>
#> * scale 'b_bbds':
#> Levels Range
#> 1 r 0 - 1
#> 2 + 0 - 1
#> 3 1 1 - 5
#> 4 2m 1 - 5
#> 5 2a 5 - 15
#> 6 2b 15 - 25
#> 7 3 25 - 50
#> 8 4 50 - 75
#> 9 5 75 - 100
#>
#> * scale 'ordin.':
#> Levels Range
#> 1 1 0 - 1
#> 2 2 0 - 1
#> 3 3 1 - 5
#> 4 4 1 - 5
#> 5 5 5 - 15
#> 6 6 15 - 25
#> 7 7 25 - 50
#> 8 8 50 - 75
#> 9 9 75 - 100
#>
summary(braun_blanquet$b_bbds)
#> ## Number of cover scales: 1
#>
#> * scale 'b_bbds':
#> Levels Range
#> 1 r 0 - 1
#> 2 + 0 - 1
#> 3 1 1 - 5
#> 4 2m 1 - 5
#> 5 2a 5 - 15
#> 6 2b 15 - 25
#> 7 3 25 - 50
#> 8 4 50 - 75
#> 9 5 75 - 100
#>