Hello,
I'm trying to compare two small datasets of Elasmobranchs landed by artisanal fisheries in Brazil via rarefaction curves that are based on sampling units, not abundances.
Therefore, I create a data frame with presence/absence data in which every column is a sampling unit and every row a species. Still, I get constantly errors from R and I guess its about the format of the data I load. Still, I have been confirmed by other researchers who already worked in the same way and still where able to produce results. I would be grateful if someone would maybe look at my data and try to help me figure out where I'm going wrong!
The code I used is this:
"### Rarefaction with iNEXT -> Species X Visits
out
I found a solution in a different way, if anyone is interested how to handle problems like this with iNEXT, please let me know and I can answer that to a certain extent.
You can try use iNEXT online but your problem is in the data
I am trying to run a dataset in which I have 1 replicate (row) by site, but it seems function iNEXT is interpolating and extrapolating richness by species. Does anybody know what I am doing wrong?
Carlos Delano Oliveira could you figure it out? I had the same problem and found this: http://140.114.36.3/wordpress/wp-content/uploads/software/iNEXTOnline_UserGuide.pdf it seems that the data format needs to be species as rows and sites as columns.
Bianca Trevizan Segovia , yes, I could. This was my problem: the data format was wrong. I figured out reading this guide. Thank you for your answer.
Benoit Moreaux , I think I´m having a problem similar to yours with the presence/absence data. Could you tell me how you organized your
matrix data?
I´m trying to compute rarefactions/extrapolations curves for my data concerning Neotropical fish species. but I get constantly errors from R.
I would be grateful if you can help me!
Hi Benoit Moreaux
I'm trying the same using the iNEXT, have you get to an final plot?
[edit: Finally have I an plot :D]
Thanks!
- Badges
- Science topic
- Similar topics
- Analytical Chemistry
- Column