Antonio,

The concov function in the labsdv package produces a table of combined species constancy and importance. It could be what you're looking for.

http://cran.r-project.org/web/packages/labdsv/labdsv.pdf

Antonio,

The concov function in the labsdv package produces a table of combined species constancy and importance. It could be what you're looking for.

http://cran.r-project.org/web/packages/labdsv/labdsv.pdf

The following review explains the context and method of calculating the importance value index in tropical forest inventories: http://www.globalsciencebooks.info/JournalsSup/images/0812/AmJPSB_2(2)12-20o.pdf

I will also try to share your question with colleagues working with R in this area.

Have a look in this function http://snipt.org/Amhd2 Although the comments are in portuguese, it might be useful.

Thank you Pedro, that was quick! If I find time to try out your R routine myself then I will provide some feedback.

Also, sign up at the R ecology mail list to get up to date responses: [email protected]

Hi Antonio,

Probably you got solution already. If not why not also try this help page.

URL http://ecology.msu.montana.edu/labdsv/R

No matter that variable exactly apply to herb, shrub or tree. But the process would be the same.

Goodluck.

Chitra

hi

if maybe to late for answer,but you consider vegan package in R for analyses.

regards

try this :

install.packages("BiodiversityR")

https://rdrr.io/cran/BiodiversityR/man/importancevalue.html

https://cran.r-project.org/web/packages/BiodiversityR/BiodiversityR.pdf

greetings.

"BiodiversityR" and "vegan" are good tools.