Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Join us at FabCon Atlanta from March 16 - 20, 2026, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM. Register now.

Reply
Anonymous
Not applicable

Published report with R script using Apriori unexpected results

My code below displays a table with Apriori results. I'm able to see the rules, support, confidence, lift, and count in PowerBI Desktop. I sort by count which works in PowerBI Desktop. When I publish this report to the web, the column count is no longer displayed, and the script fails because of the sort. Any thoughts?

rules_by_count <- sort(basket_rules, by = "count")

 

#Main
library(Matrix)
library(arules)
library(plyr)
library(dplyr)
library(gridExtra)

itemList <- dataset
#itemList <- read.csv("ItemListAll.csv", header=TRUE, sep=",")

# Converting to a Matrix ####
itemList$const = TRUE

# Remove duplicates
dim(itemList)
orders <- unique(itemList)
dim(itemList)

# Need to reshape the matrix
itemList_max_prep <- reshape(data = itemList,
                           idvar = "SALESID",
                           timevar = "ITEMNAME",
                           direction = "wide")

# Drop the SALESID
itemList_matrix <- as.matrix(itemList_max_prep[,-1])

# Clean up the missing values to be FALSE
itemList_matrix[is.na(itemList_matrix)] <- FALSE

# Clean up names
colnames(itemList_matrix) <- gsub(x=colnames(itemList_matrix),
                               pattern="const\\.", replacement="")

itemList_trans <- as(itemList_matrix,"transactions")

#inspect(itemList_trans)

basket_rules <- apriori(itemList_trans, parameter = list(sup=0.00005,conf=0.75,target="rules", maxlen=3, maxtime=20))

rules_by_count <- sort(basket_rules, by = "count")
df_basket <- as(rules_by_count,"data.frame")
df_basket$support <- ceiling(df_basket$support * 100)
df_basket$confidence<- ceiling(df_basket$confidence * 100)
df_basket$lift<- round(df_basket$lift, digits = 2)
grid.table(head(df_basket, n = 5L))

I get this error. "Error in .local(x, decreasing, ...) : Unknown interest measure to sort by."

2 REPLIES 2
v-yulgu-msft
Microsoft Employee
Microsoft Employee

Hi @Anonymous,

 

Could you get expected result without any error in Power BI service if removig the "Sort" in R script?

 

Regards,

Yuliana Gu

Community Support Team _ Yuliana Gu
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Anonymous
Not applicable

ah I should have tested that. It does work!

 

But why am I not able to see the 'Count' field on PowerBI service?

Helpful resources

Announcements
FabCon Global Hackathon Carousel

FabCon Global Hackathon

Join the Fabric FabCon Global Hackathon—running virtually through Nov 3. Open to all skill levels. $10,000 in prizes!

October Power BI Update Carousel

Power BI Monthly Update - October 2025

Check out the October 2025 Power BI update to learn about new features.

FabCon Atlanta 2026 carousel

FabCon Atlanta 2026

Join us at FabCon Atlanta, March 16-20, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.

Top Solution Authors