missingness

From missing +‎ -ness.

• enPR: mĭsʹ-ing-nəs, IPA^(key): /ˈmɪs.ɪŋ.nəs/, /-nɪs/, /-nɛs/
• Hyphenation: miss‧ing‧ness
• Rhymes: -ɪsɪŋnəs

missingness (uncountable)

1. Absence.
   • 1931, Vernon Loder, Death of an Editor, page 236:

     So far, we assume that he took the rifle from the cabinet to throw blame by its missingness — I mean, its absence — on some one else.

   • 1988, Theology, volume 91, page 467:

     However, in examining the influences on Merton, there is one major influence which is missing, and its 'missingness' is illustrated by one quotation in which Merton describes the relationship between […]

   • 2002, Martin Lass, Mirror, Mirror, Body and Mind - The Physiological and Psychological Journey, page 39:

     That is, feelings of missingness and hurt — the usual interpretation of Wound — being lopsided perceptions, each contain the tacit feeling that the opposite can exist on its own.

2. Missing data; omission. (Can we add an example for this sense?)
3. (statistics) The manner in which data are missing from a sample of a population.
   • 1992, Arijit Chaudhuri, Horst Stenger, Survey Sampling: Theory and Methods, page 282:

     In large scale surveys the assumption of missingness at random is untenable.

   • 2002, Paul D. Allison, Missing Data, Sage Publications, →ISBN, page 86:

     These methods are very sensitive to assumptions made about the missingness mechanism or about the distributions of the variables with missing data.

   • 2006, Mamdouh Refaat, Data Preparation for Data Mining Using SAS, page 180:

     Some imputation models require the data to have a certain distribution of their missing values, their missingness pattern.