如何在Excel中计算百分位数？

Question

I have a row of numbers, and I want below each number to have the percentile of that number (compared to the other numbers in the row). I tried to use =RANK.EQ but that didn't quite work. (since I think I can only use a range over a column instead of a row?)

EDIT: I am looking to map a number x to p(x) where p(x) is the percentage of y's that fall below x in that row.

Answer 1

Assumed all your data is in column A then you can get the percentile of A1 with =A1/SUM(A:A)

Same can be done for Rows by replacing A:A with the given Row number of the values, for example 2:2

Answer 2

Let row 1 be your numbers (A1:Z1). For A2, use =Percentrank($A1:$Z1,A1). Drag formula.

Answer 3

I'm not sure about the y s but for:

the percentage of y's that fall below x in that row

suggest in A2 and copied across to suit:

=1-RANK(A1,$A1:$Z1)/COUNT($A1:$Z1)  

where the row with x s is assumed to be Row1 and the row length ColumnsA:Z.