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	843	93.1
SAL	797	88.1
CAS	659	72.8
WD	579	64.0
RAI	572	63.2
ADS	561	62.0
married_name	512	56.6
death_date	433	47.8
birth_date	394	43.5
ISNI	310	34.3
birth_name	171	18.9

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