Hello, thanks for uploading this video. It is very useful. I would like to ask what is the reason for a negative value in the LCBD of the replacement component. Is there a link where I can find this information? that would be perfect actually. I am working right now on my thesis and I got a negative value, and I do not know the reason behind this. You can see this in the minute 41:35 of the video. Thanks in advance.
Hello. Great video! I saw that in the calculation of LCBD the value of site 1 is negative. The same thing happens to me with my data (some values are negative). This is correct? According to the calculations, it should not give values between 0 and 1? What am I doing wrong? Thank you!
Thank you for the great lectur! But i didnt understand the sites/observation issues. For example lets say i have 2 sites with 30 observations, and i want to know the beta diversity between these sites over these observations, so how the code understands that which observations are from first site or second site so it gives a B-div value? Thanks in advance
I think you have to organise the data such that the "Site" is in rows and the columns will have your count data for your species. It will then calculate one value for the whole row 1, which could be site A and then there will be a calculation on site B (row 2). Correct me if I am wrong!
Ahh, I see what you meant. Actually I think here the data was not sub-set to compare differences between 2 sites, but just taken the overall value. In your case (I did this too), you would have to subset the data to only get your first two categorical variables (sites) and then calculate B-div between them...and so on.
Really nice presentation. I learned a lot. Thanks
Hopefully this account will get active back. I'm highly interested with these kind of contents.
Hello, thanks for uploading this video. It is very useful. I would like to ask what is the reason for a negative value in the LCBD of the replacement component. Is there a link where I can find this information? that would be perfect actually. I am working right now on my thesis and I got a negative value, and I do not know the reason behind this. You can see this in the minute 41:35 of the video. Thanks in advance.
thank you so much for your fascinated video tutors
question, how do we calculate hill numbers in r
Hello. Great video! I saw that in the calculation of LCBD the value of site 1 is negative. The same thing happens to me with my data (some values are negative). This is correct? According to the calculations, it should not give values between 0 and 1? What am I doing wrong? Thank you!
Thanks，its very useful to me, i wonder how to use R to calculate the functional beta diverstiy?
Please help me in calculating functional diversity in r
Obrigado. Foi bem explicado!
what is wrong here: Error in library(adespatial) : there is no package called ‘adespatial’
install.packages("adespatial")
library("adespatial")
This worked for me.
thanks for such a nice lecture
did you have problems with reading in the adespatial packed ?
Thank you for the great lectur! But i didnt understand the sites/observation issues. For example lets say i have 2 sites with 30 observations, and i want to know the beta diversity between these sites over these observations, so how the code understands that which observations are from first site or second site so it gives a B-div value? Thanks in advance
I think you have to organise the data such that the "Site" is in rows and the columns will have your count data for your species. It will then calculate one value for the whole row 1, which could be site A and then there will be a calculation on site B (row 2). Correct me if I am wrong!
Ahh, I see what you meant. Actually I think here the data was not sub-set to compare differences between 2 sites, but just taken the overall value. In your case (I did this too), you would have to subset the data to only get your first two categorical variables (sites) and then calculate B-div between them...and so on.
@@rachitsingh98 Yesss i did a lot of subsetting:)
Where to get beta diversity script
@Ecological Applications in R please help me
I kept getting this error when trying to load
library(adespatial)
Error: package or namespace load failed for ‘adespatial’ in loadNamespace(j
did you have any luck, adespatial is installed by will not load.
I got the error message: Error in beta.div.comp(fish, coef = "J", quant = T) :
could not find function "beta.div.comp"
Maybe you didn't load the package
Where to get the package