# Conditional SUMPRODUCT to also ignore blanks

#### cfdh_edmundo

##### Board Regular
Hi,

I have the following code which calculates a weighted average:

Rich (BB code):
``=SUMPRODUCT(--(\$U\$2:\$U\$1203=AE3),\$AB\$2:\$AB\$1203,\$C\$2:\$C\$1203)/SUMIF(\$U\$2:\$U\$1203,AE3,\$C\$2:\$C\$1203)``
It works very well except that I would like it to ignore blank cells in the range \$AB\$2:\$AB\$1203

I tried to change it to the following code

Rich (BB code):
``=SUMPRODUCT(--(\$U\$2:\$U\$1203=AE3),\$AB\$2:\$AB\$1203,(LEN(\$AB\$2:\$AB\$1203)>0),\$C\$2:\$C\$1203)/SUMIF(\$U\$2:\$U\$1203,AE3,\$C\$2:\$C\$1203)``
But this doesn't work and just gives me zero for everything.

If anyone could let me know how I do this that would be great.

Many thanks!

#### steve the fish

##### Well-known Member
Re: Help with conditional SUMPRODUCT to also ignore blanks

The double negative in front of this bit:

--(U2:U1203=AE3)

is there to convert a TRUE/FALSE result into a 1 or 0 result. You need the double negative in front of your new TRUE/FALSE test.

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