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FindFit::notlm FindMinimum::notlm

FindFit::notlm FindMinimum::notlm

Details

  • This message is generated when FindMinimum or FindFit is used with Method->LevenbergMarquardt, and the first argument is not given as a sum of squares.
  • Off[message] switches off the message; On[message] switches it on. For example: Off[FindFit::notlm].

Examples

Basic Examples  (1)

The first argument has an incorrect form for use with Method->"LevenbergMarquardt":

Wolfram Language code: FindMinimum[9 + x ^ 2 - 4x + (y - 3) ^ 2, {x, 1}, {y, 1}, Method -> "LevenbergMarquardt"]

This shows a valid objective function for use with Method->"LevenbergMarquardt":

Wolfram Language code: FindMinimum[4 + (x - 2) ^ 2 + (y - 3) ^ 2, {x, 1}, {y, 1}, Method -> "LevenbergMarquardt"]