Missing data: a first look

Analysis of missing data in key information categories

Wikibase queries

This brings together a number of different queries which are also used in the summary table for all women.

Relevant wikibase queries

• Women with no dates
• Women with more than X statements but no date of birth/death
• Uses of <unknown value>

Missing stats for the summary table variables

variable	n_miss	pct_miss
VIAF	842	92.0
SAL	807	88.2
CAS	669	73.1
WD	583	63.7
RAI	582	63.6
ADS	566	61.9
married_name	509	55.6
death_date	416	45.5
birth_date	343	37.5
ISNI	319	34.9
birth_name	145	15.8

And as a chart.

Comparison by birth dates

Of those with known birth date, compare missing data by birth period.

(Split to give fairly balanced numbers.)

Comparison of FSAs and non-FSAs

Comparison of RAIs and non RAIs