unique count in webi

Hi ,

we have one measure with values like below :

Revenue

101

null(empty value)

105

106

nul(lempty value)

now we need count of this measure.

1. countof values from revenue which doesn't contain's a value.

2. count of null values in revenue measure.

in above example : Count of value is :3 ,count of null values is :2

Please suggest any one.

Regards,

Seshu.P