Standardizing the scale of my DCA

General
1

Hi everyone! I did a Detrended Correspondence Analysis (DCA) for my ecological data. I'm very new to RStudio and modified a script i found to suit my data. It worked quite well but i want to standardize the scales of the x and y-axes so that they share the same intervals (1). Can someone tell me how that works? I can't find anything... Thank you so much!

Here's my code:

install.packages("vegan")

library (vegan)
library (MASS)

wa<-read.table('19v21.txt',, sep='\t', check.names = F, head = T, row.names = 1)
fix (wa)
names(wa)
par(mfrow=c(1,1))

##DCA
par(mfrow=c(1,1))
wald.dca<-decorana(wa)
wald.dca
plot(wald.dca,, display="sites", cex=0.7, type="t")

head<-read.csv("label_vgl.csv", sep=";", header = FALSE)
verb<-head[,2]
ordispider(wald.dca,groups=verb)

2

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