Error: could not find function "accuracy"

Question

I want to check accuracy of what i predicted using linear regression.

I'm using R studio and R.

I want to use the accuracy function, however it keeps giving me:

Error: could not find function "accuracy"

I have done the following:

install.packages("forecast")
install.packages("zoo")
library("forecast")
library("zoo")

I installed the required packages, but i still get the same result, what is the issue here, and what goes wrong?

Code:

install.packages("forecast")
install.packages("zoo")
library("forecast")


   library("zoo")



 linearRegression2 <- lm(formula = Average.Cost.for.two ~ Aggregate.rating, data = avgCostData)
 summary(linearRegression2)
     newData2 <- data.frame(Aggregate.rating = c(3))
     predictAvgCost2 <- predict(linearRegression2, newData2)
     predictAvgCost2
     accuracy(predictAvgCost2,avgCostData)

Can't say for sure without seeing the code that throws an error, but you should start with basic [troubleshooting](https://stackoverflow.com/q/7027288/5325862) — camille, May 10 '19 at 04:16

score 1 · Answer 1 · answered May 10 '19 at 03:49

1

Linear regression is regression - not classification. So accuracy as a metric is not possible.

answered May 10 '19 at 03:49

Brad

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Error: could not find function "accuracy"

1 Answers1