?-Change data series range as data is entered?

I have a chart which shows a prediction curve and an actual curve. The prediction curve runs out until the end of a project. The actual curve is populated as data is entered. I will be generating a number of these charts from a datatable. I would like to plot the prediction curve for the duration of the project (easy). I would then like to plot the actual curve with only the existing data and not have the line drop to the x-axis at the end. Can I put a formula in the data series "x values" field?

I hope that my description makes sense.....

Thanks,
Carl

Hi,

Sounds like you need to use a dynamic named range for the chart data
source. Here are a collection of webpages on the subject.

http://peltiertech.com/Excel/Charts/Dynamics.html
http://www.tushar-mehta.com/excel/ne...rts/index.html
http://www.stfx.ca/people/bliengme/E...ps/Dynamic.htm

Cheers
Andy

isofuncurves wrote:
> I have a chart which shows a prediction curve and an actual curve. The
> prediction curve runs out until the end of a project. The actual curve
> is populated as data is entered. I will be generating a number of these
> charts from a datatable. I would like to plot the prediction curve for
> the duration of the project (easy). I would then like to plot the
> actual curve with only the existing data and not have the line drop to
> the x-axis at the end. Can I put a formula in the data series "x
> values" field?
>
> I hope that my description makes sense.....
>
> Thanks,
> Carl
>
>

--

Andy Pope, Microsoft MVP - Excel
http://www.andypope.info

Andy,

Thank you. That is exactly what I was looking for. I do have one ploblem with the solution though. My data table contains formulas to generate the chart data. So CounA() is not working for me. Each cell, inclulding the "empty ones" contains a formula:

I am defining my series by:

=OFFSET('CIP CMG'!$G$3,0,0,COUNTA('CIP CMG'!$G:$G)-1)
=OFFSET('CIP CMG'!$I$3,0,0,COUNTA('CIP CMG'!$I:$I))
=SERIES('CIP CMG'!$H$3,Metrics.xls'!CIP_Date,Metrics.xls'!Sum_Target_Start,2)

The data for the named ranges is not entered manually. It is generated by a formula.

=IF(G21<=TODAY(),COUNTIF(C$2:C$91,"<"&$G21),"")

I assume COUNTA does not work because the cells are non-empty. Any ideas how to make this work with formulas in the cells?

thanks,
Carl.

Have you tried COUNT() instead of COUNTA()?



isofuncurves wrote:
> Andy,
>
> Thank you. That is exactly what I was looking for. I do have one
> ploblem with the solution though. My data table contains formulas to
> generate the chart data. So CounA() is not working for me. Each cell,
> inclulding the "empty ones" contains a formula:
>
> I am defining my series by:
>
>>=OFFSET('CIP CMG'!$G$3,0,0,COUNTA('CIP CMG'!$G:$G)-1)
>>=OFFSET('CIP CMG'!$I$3,0,0,COUNTA('CIP CMG'!$I:$I))
>>=SERIES('CIP
>>CMG'!$H$3,Metrics.xls'!CIP_Date,Metrics.xls'!Sum_Target_Start,2)
>
>
> The data for the named ranges is not entered manually. It is generated
> by a formula.
>
>>=IF(G21<=TODAY(),COUNTIF(C$2:C$91,"<"&$G21),"")
>
>
> I assume COUNTA does not work because the cells are non-empty. Any
> ideas how to make this work with formulas in the cells?
>
> thanks,
> Carl.
>
>

--

Andy Pope, Microsoft MVP - Excel
http://www.andypope.info

I thought of using countif() since all will be numeric integers >0. I haven't tried it yet as I'm scrambling to put together a presentation... Thanks!

Carl