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# Summarize Formules

## Summarize Formules

(OP)
I want to summarize different formules and ik can't let it work

This is what I have done:

6 formules:

if timevalue({Medicatie.medToedienTijd1}) >= timevalue({Medicatie.medTijdStart}) then 1 else 0
if timevalue({Medicatie.medToedienTijd2}) >= timevalue({Medicatie.medTijdStart}) then 1 else 0
if timevalue({Medicatie.medToedienTijd3}) >= timevalue({Medicatie.medTijdStart}) then 1 else 0
if timevalue({Medicatie.medToedienTijd4}) >= timevalue({Medicatie.medTijdStart}) then 1 else 0
if timevalue({Medicatie.medToedienTijd5}) >= timevalue({Medicatie.medTijdStart}) then 1 else 0
if timevalue({Medicatie.medToedienTijd6}) >= timevalue({Medicatie.medTijdStart}) then 1 else 0

And then 1 formule to summarize the above formules:

The first 6 formules are giving the correct answer, but when I want to summarize the formules it gives no answer at all.

Does someone have a solution my problem?

### RE: Summarize Formules

It would seem that one of the fields used in the formual is null.

Assuming {Medicatie.medTijdStart} can not be null try

if isnull({Medicatie.medToedienTijd1}) then 0 else
if timevalue({Medicatie.medToedienTijd1}) >= timevalue({Medicatie.medTijdStart}) then 1 else 0

Repeat for other formula

Ian

### RE: Summarize Formules

(OP)
Ian,

Thanks for the tip! It works now very well!

Astrid

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