Syntax Errors

Unexpected end of input

Matches: unexpected end of input

WHAT THIS ERROR MEANS

R reached the end of your code but was still expecting more — usually a closing parenthesis, bracket, or brace.

1. Count all opening and closing brackets: (), {}, [].

2. Make sure every opening bracket has a matching close.

3. Check if a string is missing its closing quote.

BAD — THIS CAUSES THE ERROR

if (x > 0) {
  print("positive")
# missing closing brace

GOOD — CORRECT APPROACH

if (x > 0) {
  print("positive")
}

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