Check If your output is in the format of data frame or matrix,

and to check whether it is a data frame or matrix, use the commands,

is.data.frame (MyData)

or

is.matrix(MyData)

to write as csv, you may use, write.table or write.csv commands,

e.g: write.csv(MyData, file = "MyData.csv",row.names=FALSE, na="")

write.table(MyData, file = "MyData.csv",row.names=FALSE, na="",col.names=FALSE, sep=","

if the output is of different format, you can tell about the format output for further details,

Hope it will be helpful,

Mona

Dear Reza,

try is.vector(Mydata) or tell me the structure(my data) or dim(my data) or print(my data)

So, i will be able to suggest the next step.

please follow the following link to CCA in vegan,

http://ecology.msu.montana.edu/labdsv/R/labs/lab12/lab12.html

Regards,

Mona