Excel, если функция, если,

I assume x is the number I'm going to analyze and "y" is as "male" or "female" and "z" is as age group.

x - это число, которое означает «недостаточный вес», «здоровый» или «избыточный вес». но x, который на самом деле является BPI, не одно и то же для мужчин и женщин. например, если x = 21, то в зависимости от пола и возраста он будет классифицироваться как «с недостаточным весом», «здоровым» или «с избыточным весом».

 Function BAI(x As Integer, y As String, z As Integer) As String


 If x < 21 And y = "female" And 20 <= z <= 39 Then
    BAI = "UNDERWEIGHT"

 Elseif 22 <= x <= 33 And y = "Female" And 20 <= z <= 39 Then
    BAI = "Healthy"

ElseIf 34 <= x <= 38 And y = "Female" And 20 <= z <= 39 Then
    BAI = "overweight"

ElseIf x >= 39 And y = "Female" And 20 <= z <= 39 Then
    BAI = "OBESE"

ElseIf x <= 23 And y = "female" And 40 <= z <= 59 Then
    BAI = "UNDERWEIGHT"

ElseIf 24 <= x <= 35 And y = "female" And 40 <= z <= 59 Then
    BAI = "Healthy"

ElseIf 36 <= x <= 41 And y = "female" And 40 <= z <= 59 Then
    BAI = "Overweight"

ElseIf x >= 42 And y = "female" And 40 <= z <= 59 Then
    BAI = "OBESE"

ElseIf x <= 25 And y = "female" And 60 <= z <= 79 Then
    BAI = "UNDERWEIGHT"

ElseIf 26 <= x <= 38 And y = "female" And 60 <= z <= 79 Then
    BAI = "Healthy"

ElseIf 39 <= x <= 43 And y = "female" And 60 <= z <= 79 Then
    BAI = "Overweight"

ElseIf x >= 44 And y = "female" And 60 <= z <= 79 Then
    BAI = "obese"

ElseIf x <= 8 And y = "male" And 20 <= z <= 39 Then
    BAI = "Underweight"

ElseIf 9 <= x <= 21 And y = "male" And 20 <= z <= 39 Then
    BAI = "Healthy"

ElseIf 22 <= x <= 26 And y = "male" And 20 <= z <= 39 Then
    BAI = "overweight"

ElseIf x >= 27 And y = "male" And 20 <= z <= 39 Then
    BAI = "OBESE"

ElseIf x <= 11 And y = "male" And 40 <= z <= 59 Then
    BAI = "UNDERWEIGHT"

ElseIf 12 <= x <= 23 And y = "male" And 40 <= z <= 59 Then
    BAI = "Healthy"

ElseIf 24 <= x <= 28 And y = "male" And 40 <= z <= 59 Then
    BAI = "Overweight"

ElseIf x >= 29 And y = "male" And 40 <= z <= 59 Then
    BAI = "OBESE"

ElseIf x <= 13 And y = "male" And 60 <= z <= 79 Then
    BAI = "UNDERWEIGHT"

ElseIf 14 <= x <= 25 And y = "male" And 60 <= z <= 79 Then
    BAI = "Healthy"

ElseIf 26 <= x <= 30 And y = "male" And 60 <= z <= 79 Then
    BAI = "Overweight"

 End If

 End Function