Extracting formulae from regression line automatically

ICPurvis

New Member
Joined
Nov 4, 2002
Messages
4
I have several curves to which I have added regression lines, mostly of the form y=a*x^b, and I have to format the formula as numbers and increase the number of decimal points so that I can pick up the less significant digits. I then paste this formula into a new cell and replace the "x" with the address of the cell in which the measured value of "x" is located. I then copy this formula down to give me the calculated values of Y, which I can then use to calculate values for use on other sheets of the workbook.
Is ther an way of automating this process, preferably without having to use VB or other external programming?
 

Some videos you may like

Excel Facts

Select all contiguous cells
Pressing Ctrl+* (asterisk) will select the "current region" - all contiguous cells in all directions.

ICPurvis

New Member
Joined
Nov 4, 2002
Messages
4
I have been advised that it may be possible to use Statistical Functions to solve this problem, but I can only find Linear and Exponential functions (LINEST and LOGEST). Does anyone know of a similar function to fit to a Power function (POWEREST???)?
Regards, Iain
 

Watch MrExcel Video

Forum statistics

Threads
1,127,330
Messages
5,624,047
Members
416,007
Latest member
csf

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
Top