## ----setup, include=FALSE-----------------------------------------------------
library(EcoNiche)
set.seed(1)

otu <- matrix(rpois(20*25, 5), nrow = 20)
rownames(otu) <- paste0("OTU", 1:20)
colnames(otu) <- paste0("S", 1:25)

env <- data.frame(
  Temp = rnorm(25, 15, 3),
  pH   = rnorm(25, 6.5, 0.4),
  SOC  = rlnorm(25, 2, 0.3)
)
rownames(env) <- colnames(otu)

res <- cca_workflow(
  mode = "gradient",
  otu = otu, env = env,
  sel = c("Temp", "pH"),
  covariates = "SOC",
  make_plot = FALSE,
  top_node = 20
)

str(res$step3, max.level = 1)