downweight

English

Etymology

From down- +‎ weight.

Verb

downweight (third-person singular simple present downweights, present participle downweighting, simple past and past participle downweighted)

1. (statistics) To give something a lower weight.

   Antonym: upweight

   • 2004, Thomas W. O'Gorman, Applied Adaptive Statistical Methods: Tests of Significance and Confidence Intervals, SIAM, →ISBN, page 12:

     In addition, both adaptive and robust methods downweight outliers. Note that, if a large sample is taken, the M-estimation procedure will generally downweight some of the largest residuals, even if the error terms were normally distributed.

Noun

downweight (countable and uncountable, plural downweights)

1. (music) The amount of pressure (in grams) required to press a key on a piano.

   Hypernym: touchweight

   Coordinate term: upweight

   • 2004, Robert Palmieri, editor, The Piano: An Encyclopedia, second edition, Routledge, →ISBN, page 401:

     Piano technicians have to measurements at their disposal for measuring touchweight: downweight and upweight. Downweight and upweight are measured in grams. To measure downweight, a gram weight is placed on the key at the front and a rap or thump is given to the shop bench, KEYBED, or action stack with one's fist to break the starting friction

     .

Anagrams

• weight down