Guys and gals,

Apologies for this being simple to some, but what I want to do sounds simple
in theory. I've got to make a spreadsheet to track when talks were given and
how many attended, and this data will be broken up into periods of the year.
So far, I've got something like this

Talk Title......Date Given......Number attendees

On another worksheet I've used a sumproduct to work out how many talks took
place in one period (eg. 1/3/2005-28/3/2005) but now I want to be able to
take the number of attendees and correlate it with specific periods. Below is
an example of the sumproduct calculation:

=SUMPRODUCT(--('Talk Log'!C4:C61=C4),--('Talk Log'!C4:C61<=D4))

As you can see, it works out how many talks took place in specific periods
(C4 and D4 just have dates in them), what I need to do is take the dates
mentioned and add up the number of people who went on the talks, any
ideas???????? Thanks for even reading this by the way!

Hi

You just need to add another argument to your existing function:
=SUMPRODUCT(--('Talk Log'!C4:C61=C4),--('Talk Log'!C4:C61<=D4),--(Talk
Log'!D4:D61))
where your attendees totals are in column D alongside the dates.

--
Andy.


"Dummies isn't any good"
wrote in message ...
Guys and gals,

Apologies for this being simple to some, but what I want to do sounds
simple
in theory. I've got to make a spreadsheet to track when talks were given
and
how many attended, and this data will be broken up into periods of the
year.
So far, I've got something like this

Talk Title......Date Given......Number attendees

On another worksheet I've used a sumproduct to work out how many talks
took
place in one period (eg. 1/3/2005-28/3/2005) but now I want to be able to
take the number of attendees and correlate it with specific periods. Below
is
an example of the sumproduct calculation:

=SUMPRODUCT(--('Talk Log'!C4:C61=C4),--('Talk Log'!C4:C61<=D4))

As you can see, it works out how many talks took place in specific periods
(C4 and D4 just have dates in them), what I need to do is take the dates
mentioned and add up the number of people who went on the talks, any
ideas???????? Thanks for even reading this by the way!

small aside, the final -- is not needed as there are no Booleans to coerce

=SUMPRODUCT(--('Talk Log'!C4:C61=C4),--('Talk Log'!C4:C61<=D4),'Talk
Log'!D4:D61)


--

HTH

RP
(remove nothere from the email address if mailing direct)


<Andy B wrote in message ...
Hi

You just need to add another argument to your existing function:
=SUMPRODUCT(--('Talk Log'!C4:C61=C4),--('Talk Log'!C4:C61<=D4),--(Talk
Log'!D4:D61))
where your attendees totals are in column D alongside the dates.

--
Andy.


"Dummies isn't any good"
wrote in message
...
Guys and gals,

Apologies for this being simple to some, but what I want to do sounds
simple
in theory. I've got to make a spreadsheet to track when talks were given
and
how many attended, and this data will be broken up into periods of the
year.
So far, I've got something like this

Talk Title......Date Given......Number attendees

On another worksheet I've used a sumproduct to work out how many talks
took
place in one period (eg. 1/3/2005-28/3/2005) but now I want to be able
to
take the number of attendees and correlate it with specific periods.
Below
is
an example of the sumproduct calculation:

=SUMPRODUCT(--('Talk Log'!C4:C61=C4),--('Talk Log'!C4:C61<=D4))

As you can see, it works out how many talks took place in specific
periods
(C4 and D4 just have dates in them), what I need to do is take the dates
mentioned and add up the number of people who went on the talks, any
ideas???????? Thanks for even reading this by the way!