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Table 4 Most important explanatory variables for next day arrivals identified by simulated annealing and recursive least squares

From: Forecasting daily emergency department arrivals using high-dimensional multivariate data: a feature selection approach

Feature family

Feature

Website visits

Ekströms visits

Holiday name

Independence day eve

Holiday name

Easter day

Holiday name

Shrove sunday

Holiday name

All saint’s day

Holiday name

May day

Holiday name

Ascension day

Holiday

Holidayt+0

Holiday

Holidayt+1

Available hospital beds

Regional hospital A, Ward 9

Available hospital beds

Health centre 10

Available hospital beds

Regional hospital A, Ward 8

Available hospital beds

Health centre 12

Available hospital beds

Regional hospital A, Ward 5

Available hospital beds

Health centre 11, Ward 3

Available hospital beds

Health centre 2

Available hospital beds

Health centre 11, Ward 2

Available hospital beds

Regional hospital B, Ward 1

Available hospital beds

University hospital, ED ward

Available hospital beds

Health centre 11, Ward 1

Month

December

Month

September

Month

March

Public event

30 individual public events*

Public event

Number of major daily public events

Public event

Number of total daily public events

Weather

Snow depth

Weekday

Sunday

Weekday

Monday

Weekday

Wednesday

Weekday

Friday

Weekday

Thursday

Weekday

Tuesday

  1. *Individual public events are not shown here due to their high number