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[求助] R中NMDS显示 Species scores not available

新手画NMDS 模型。
(1)计算β值
library(vegan)
beta14<-read.csv("species richness in different slamtraps2.csv",row.names = 1)
beta14
c<-raupcrick(beta14)
c
write.csv(as.matrix(c),file="Beta value of species richness in different slamtraps2.csv"
(2)此时我的用来做NMDS的数据是这样排列的
library(vegan)
library(ggplot2)
set.seed(2)
NMDS14<-read.csv("Beta value of species richness in different slamtraps2.csv",header = T,row.names = 1)
NMDS14
pp<-metaMDS(NMDS14,k=2,trymax = 100)
pp
这一步就有显示species scores misssing
stressplot(pp)
scores(pp,choices,display = c("sites","species")
plot(pp)
还是“species scores are not avalaible”
ordiplot(pp,type="n"
orditorp(pp,display = "sites",col="red",air=0.01)
orditorp(pp,display = "species",cex = 1.25,air = 0.01)
请问  什么是  sprcies scores?

R中NMDS显示  Species scores not available
EF12C048-0047-447E-9152-9EFE1B1050DC.png
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