Table:
0
A
B
C
D
E
F
G
1
School
Location
Mascot
County
2013-2014 Size
Year Joined
Previous Conference
2
Avon
Avon
Orioles
32 Hendricks
2,608
2000
Mid-State
3
Brownsburg
Brownsburg
Bulldogs
32 Hendricks
2,370
2000
Olympic
4
Fishers
Fishers
Tigers
29 Hamilton
2,582
2006
none (new school)
5
Hamilton Southeastern
Fishers
Royals
29 Hamilton
3,009
2000
Olympic
6
Harrison (West Lafayette)
West Lafayette
Raiders
79 Tippecanoe
1,740
2000
Olympic
7
Lafayette Jeff
Lafayette
Bronchos
79 Tippecanoe
1,935
2004
North Central
8
McCutcheon
Lafayette
Mavericks
79 Tippecanoe
1,809
2000
Olympic
9
Noblesville
Noblesville
Millers
29 Hamilton
2,637
2000
Olympic
10
Westfield
Westfield
Shamrocks
29 Hamilton
1,821
2000
Rangeline
11
Zionsville
Zionsville
Eagles
06 Boone
1,808
2000
Rangeline

Questions and formulas:
Question: What was the previous conference for the school that joined in 2000 with a millers mascot?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:G1,(F1=2000)*(C1="millers")),7))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:G11,(F2:F11=2000)*(C2:C11="millers")),7))
Level: medium