Table:
0
A
B
C
D
E
F
1
District
Incumbent
Party
First elected
Result
Candidates
2
Louisiana 1
Bob Livingston
Republican
1977
Re-elected
Bob Livingston (R) Unopposed
3
Louisiana 2
Lindy Boggs
Democratic
1973
Re-elected
Lindy Boggs (D) Unopposed
4
Louisiana 3
Billy Tauzin
Democratic
1980
Re-elected
Billy Tauzin (D) Unopposed
5
Louisiana 4
Buddy Roemer
Democratic
1980
Re-elected
Buddy Roemer (D) Unopposed
6
Louisiana 5
Jerry Huckaby
Democratic
1976
Re-elected
Jerry Huckaby (D) Unopposed
7
Louisiana 6
Henson Moore
Republican
1974
Retired to run for U. S. Senate Republican hold
Richard Baker (R) Unopposed

Questions and formulas:
Question:  how many district with incumbent being lindy boggs
Formula: ROWS(UNIQUE(FILTER(A1, B1="Lindy Boggs")))
Formula2: ROWS(UNIQUE(FILTER(A2:A7, B2:B7="Lindy Boggs")))
Level: medium
Question: what's the result with candidates being billy tauzin (d) unopposed
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1="Billy Tauzin (D) Unopposed"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F7,F2:F7="Billy Tauzin (D) Unopposed"),5))
Level: medium
Question:  how many candidates with result being retired to run for u. s. senate republican hold
Formula: ROWS(UNIQUE(FILTER(F1, E1="Retired to run for U. S. Senate Republican hold")))
Formula2: ROWS(UNIQUE(FILTER(F2:F7, E2:E7="Retired to run for U. S. Senate Republican hold")))
Level: medium
Question: what's the result with district being louisiana 2
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="Louisiana 2"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F7,A2:A7="Louisiana 2"),5))
Level: medium
Question: who is the the candidates with first elected being 1977
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1=1977),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F7,D2:D7=1977),6))
Level: medium