Dear community
I'm a very newbie who touched R for the first time today.
I tried to plot with the following simple code, but the dots are horizontal lines as shown in the image, and I don't know where the problem is.
Could you tell me which codes are the problem, or what codes are missing?
read.csv("microbiome.csv", header = TRUE, row.names = 1)
x = read.csv("microbiome.csv", header = TRUE, row.names = 1)
com = x[,2:ncol(x)]
com[is.na(com)] <- 0
m_com = as.matrix(com)
library("vegan")
nmds = metaMDS(m_com, distance = "bray”)