Calculate cumulative count by looking values in a column

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n2p2gupta wrote:

How can I create a column "Result" below by keepin a count of repeating values from Col1?  Thanks.

Col 1    Result

   a              1

   b              1

   a              2

   c              1

   b             2

   a             3

   c             2

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n2p2gupta

You need an index column to indicate the rows order.

Then create a calculated column as

Result =
RANKX (
    FILTER ( 'Table', 'Table'[Column1] = EARLIER ( 'Table'[Column1] ) ),
    'Table'[Index],
    ,
    ASC,
    DENSE
)