Type & Coercion Errors

Cannot coerce type

Matches: cannot coerce type '([^']+)' to vector of type '([^']+)'

WHAT THIS ERROR MEANS

R tried to convert one data type to another but failed because the conversion isn't possible or doesn't make sense.

1. Check the actual type with class() or typeof().

2. Use the appropriate conversion function.

3. Clean your data before converting (e.g., remove non-numeric characters).

BAD — THIS CAUSES THE ERROR

as.numeric(list(1, "a", TRUE))

GOOD — CORRECT APPROACH

as.numeric(c(1, 0, 1))

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