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I'm using R scripts to make some statistical calculations. When I use the interactive terminal, this code works without problems:

# Load libraries to read ods tables, calcs alpha and pearson
print("Loading libraries...")
library(readODS)
# library(arules)
# library(arulesViz);
print("Done!")

# Read table ods
print("Calc results...")
table_votes = read_ods("table.ods", col_names = TRUE)

# Remove columns from dataframe where ALL values are NA
table_votes <- table_votes[,colSums(is.na(table_votes))<nrow(table_votes)]

matrix_votes <- as.matrix(table_votes)
matrix_votes[!is.finite(matrix_votes)] <- 0
transactions <- as(matrix_votes, 'transactions')
apriori(transactions)

But, when I'm passing this code to the file to run with Rscript, I have a problem with function as():

"Error: Could not find function 'as'"

I solve this using R -r my_file.R... But, why doesn't work with Rscript?

Tiago Assunção
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1 Answers1

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The as function belongs to the methods package. Rscript doesn't load the methods package to save startup time (see the help of Rscript help(Rscript) ). You would have to tell Rscript to load the package.

ricoderks
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