CODEWITHSUNDEEP
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Maayan Klimenko Feinstein
Maayan Klimenko Feinstein

Reputation: 13

Error: unexpected '=' in when using "ifelse"

I want to create a new column based on a condition from two different columns in the df. I'm using a nested "ifelse":

data_long$benchmark <- ifelse(data_long$axis1<=2 & data_long$axis2<=2, 1,
                          ifelse(data_long$axis1>=3 & data_long$axis2=2, 2,
                          ifelse(data_long$axis1=2 & data_long$axis2>=3, 2,
                          ifelse(data_long$axis1=3 & data_long$axis2=3, 3,
                          ifelse(data_long$axis1>=4 & data_long$axis2=3, 4,
                          ifelse(data_long$axis1=3 & data_long$axis2>=4, 4,
                          ifelse(data_long$axis1>=4 & data_long$axis2=4, 5,
                          ifelse(data_long$axis1=4 & data_long$axis2>=4, 5,
                          ifelse(data_long$axis1>=5 & data_long$axis2>=5, 6)))))))))

But I am getting the following error:

Error: unexpected '=' in: "data_long$benchmark <- ifelse(data_long$axis1<=2 & data_long$axis2<=2, "1", ifelse(data_long$axis1>=3 & data_long$axis2="

Upvotes: 0

Views: 1695

Answers (1)

Jay Achar
Jay Achar

Reputation: 1271

The correct symbol for equality in R is ==

Without some sample data, it's not possible to check all of your logic, but the error refers to the fact that you've used = within your ifelse statements.

So, for example, where you've used

...
ifelse(data_long$axis1>=3 & data_long$axis2=2, 2,
...

You should be using:

...
ifelse(data_long$axis1>=3 & data_long$axis2 == 2, 2,
...

Also, if you're nesting this many ifelse statements, I'd recommend looking at the case_when function in the dplyr package.

Upvotes: 1

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