Logarithmic??

[Grant Reid]

Hi

I hope someone out can help me with this one. I will attempt to explain as
clearly as I can.

In column A I have a range of numeric values 0 -5,000,000 in increments of
25,000,000 (A1:A201). In column B from B1:B201, I have percentage, 10%. In
column C I have a formula to calculate 10% of the corresponding value column
A.

If I select A1:A20 and the click the Graph button on the toolbar, I see a
source data series represented in the expected perfectly linear line. I then
click this series and add a logarithmic trendline to view a curve of the
data.

Now, what I actually need in column D is a formula that will calculate the
values needed for me to show the actual points required to display a
logarithmic curve, that starts from 0. Is their anyway this can be
accomplished via a function?

Not having a mathamatical or statistical background is making the this a
frustrating problem.

Any help would be much appreciated.

Regards - Grant

 

[Gary Brown]

Reid,
I THINK you're looking for the LN( ) function.
--
HTH,
Gary Brown
(e-mail address removed)
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[Grant Reid]

Hi Gary

Thanks for your response. I managed to get what I needed by using a
combination of sequential numbers and LOG function. Don't ask how ;-) but
it took many hours to figure out.

Thanks once again

Regards - Grant