Can't find function df_to_numeric_matrix

[HeatherDeel-USDA]

Hello,

I am trying to use the heatmaps.R source file functions to create a correlation heatmap, but when I try to use the cor_heatmap function, I keep getting this error:

Error in df_to_numeric_matrix(samdat, vars = vars, trans_fun = var_fun) :
could not find function "df_to_numeric_matrix"

This is the code I am trying to run, everything prior to cor_heatmap works. I am really unsure where the df_to_numeric_matrix function is (should it be defined in heatmaps.R, or perhaps there is a package I can't find that has this function?)

Thanks for your help!

Libraries

library(phyloseq)
library(microViz)

Import functions

source("heatmaps.R")

Import phyloseq data

P.count <- readRDS('P.count.RDS')

Create variety subset

P.countRAlfalfa <- subset_samples(P.count, Alfalfa == 'Alfalfa')
colnames(tax_table(P.countRAlfalfa)) <- c('Kingdom', 'Phylum', 'Class', 'Order', 'Family', 'Genus', 'Species')

Filter to a min prevalence of 0.1

P.countRAlfalfa <- tax_filter(P.countRAlfalfa, min_prevalence = 1/10, min_sample_abundance = 1/10)

aggregate to species level

P.speciesAlfalfa <- tax_agg(P.countRAlfalfa, "Species")

get random top taxa

taxa = sample(tax_top(P.speciesAlfalfa, n = 50), size = 20)

Alfalfa correlation heatmap

cor_heatmap(data = P.speciesAlfalfa, taxa = taxa)

[HeatherDeel-USDA]

Figured it out - I didn't need to source heatmaps.R, only needed to load microViz.