[R] Error in if (fraction <= 1) { : missing value where TRUE/FALSE needed

[javed khan]

I get this error:

Error in if (fraction <= 1) { : missing value where TRUE/FALSE needed

I used this:

var <- ifelse(test$operator == 'T14', 1, 0)

operator has several values like T1, T3, T7, T15, T31, T37

For some values like T3, T7 it works fine but for majority of values it
gives error.

When I use: is.na(ts$operator), it shows all false values so no NAs.

Where could be the problem?

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