Dear List,

I tried to do cca based on species data and environmental variables (formula
instead of community data).
However, there was an error saying row sums must be >0.
I searched the previous related messages but found few solutions.
Please kindly help and thank you in advance.


code
This is vegan 1.17-3
Warning message:
package 'vegan' was built under R version 2.10.1

rm(list=ls())
library(vegan)

datam <-read.csv("c:/migration/M_R_20100707_winterM.csv",header=T,
row.names=1)
dim(datam)
datam[1,]

m.cca  <-
 cca(datam$WinterM_ratio~datam$topo_mean+datam$coast+datam$prec_max
+datam$temp_min+datam$evi_min,  datam)

error in  cca.default(d$X, d$Y, d$Z) :
  All row sums must be >0 in the community data matrix

	[[alternative HTML version deleted]]

