VBA Arrays and Exponential fit calculation - Excel 2010

cwunderlich

Board Regular
Joined
Sep 24, 2010
Messages
101
I have a macro which stores 10 values into an array (these are years, aka "known x's"). It also stores 10 values into a different array (these are data points, aka "known y's"). I plot these points to a scatter plot in excel and add an exponential trendline with the trendline formula displayed. The trend line formula gives me something along the lines of: 8E+79 e^(-.093x). What I want as a variable in my macro is this trend number of -.093. I have played around with growth(), linest(), logest() in excel to try to reproduce this -.093 number from the two data arrays as input, but no luck. Can someone please help me here?

Thanks,
 

Excel Facts

Whats the difference between CONCAT and CONCATENATE?
The newer CONCAT function can reference a range of cells. =CONCATENATE(A1,A2,A3,A4,A5) becomes =CONCAT(A1:A5)

Forum statistics

Threads
1,216,381
Messages
6,130,293
Members
449,570
Latest member
TomMacca52

We've detected that you are using an adblocker.

We have a great community of people providing Excel help here, but the hosting costs are enormous. You can help keep this site running by allowing ads on MrExcel.com.
Allow Ads at MrExcel

Which adblocker are you using?

Disable AdBlock

Follow these easy steps to disable AdBlock

1)Click on the icon in the browser’s toolbar.
2)Click on the icon in the browser’s toolbar.
2)Click on the "Pause on this site" option.
Go back

Disable AdBlock Plus

Follow these easy steps to disable AdBlock Plus

1)Click on the icon in the browser’s toolbar.
2)Click on the toggle to disable it for "mrexcel.com".
Go back

Disable uBlock Origin

Follow these easy steps to disable uBlock Origin

1)Click on the icon in the browser’s toolbar.
2)Click on the "Power" button.
3)Click on the "Refresh" button.
Go back

Disable uBlock

Follow these easy steps to disable uBlock

1)Click on the icon in the browser’s toolbar.
2)Click on the "Power" button.
3)Click on the "Refresh" button.
Go back
Back
Top