A Microsoft Office (Excel, Word) forum. OfficeFrustration

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » OfficeFrustration forum » Microsoft Excel » Charts and Charting
Site Map Home Register Authors List Search Today's Posts Mark Forums Read  

Treadline Equation



 
 
Thread Tools Display Modes
  #1  
Old January 31st, 2010, 06:58 PM posted to microsoft.public.excel.charting
MC
external usenet poster
 
Posts: 97
Default Treadline Equation

Hello Everyone -

When use a series of data and create a chart - then from that create a
treadline to forecast future values - sometimes the formula Excel provides
(used to forecast the future values) is, im guessing, to big or too long and
Excel will place an E next to a number.

Here is an example: y = 762870x + 5E+06


How can I see the equation in its entirety so I can use it?


Thanks!
  #2  
Old January 31st, 2010, 07:20 PM posted to microsoft.public.excel.charting
David Biddulph
external usenet poster
 
Posts: 8,714
Default Treadline Equation

I assume that you mean "trendline", not "treadline"?
5E+06 means 5 * 10^6

You may want to try a function such as LINEST or LOGEST, depending on what
sort of trendline you are looking at.
--
David Biddulph

MC wrote:
Hello Everyone -

When use a series of data and create a chart - then from that create a
treadline to forecast future values - sometimes the formula Excel
provides (used to forecast the future values) is, im guessing, to big
or too long and Excel will place an E next to a number.

Here is an example: y = 762870x + 5E+06


How can I see the equation in its entirety so I can use it?


Thanks!



  #3  
Old January 31st, 2010, 11:17 PM posted to microsoft.public.excel.charting
Mike Middleton
external usenet poster
 
Posts: 653
Default Treadline Equation

MC -

Several possibilites:

(1) Select the equation, and then Format it. Method depends on Excel
version, which you didn't specify.

(2) For a linear trendline, use the INTERCEPT and SLOPE worksheet functions
(or array-entered LINEST, especially if you want diagnostics).

(3) Or, for linear forecasts, use the array-entered TREND worksheet
function.

- Mike
http://www.MikeMiddleton.com



"MC" wrote in message
...
Hello Everyone -

When use a series of data and create a chart - then from that create a
treadline to forecast future values - sometimes the formula Excel provides
(used to forecast the future values) is, im guessing, to big or too long and
Excel will place an E next to a number.

Here is an example: y = 762870x + 5E+06


How can I see the equation in its entirety so I can use it?


Thanks!

  #4  
Old February 1st, 2010, 10:29 PM posted to microsoft.public.excel.charting
MC
external usenet poster
 
Posts: 97
Default Treadline Equation

Haha yes I did mean trendline thanks for that correction. I do not know what
I was thinking when I wrote that.

I do not know how to use the LINEST, TREND, or LOGEST functions, but I was
using the trendline to forecast future expenses, assuming they increase in a
linear fashion (which is more than likely not the case, but it works well
enough).

Thanks for the help - It is much appreciated David and Mike!

"MC" wrote:

Hello Everyone -

When use a series of data and create a chart - then from that create a
treadline to forecast future values - sometimes the formula Excel provides
(used to forecast the future values) is, im guessing, to big or too long and
Excel will place an E next to a number.

Here is an example: y = 762870x + 5E+06


How can I see the equation in its entirety so I can use it?


Thanks!

  #5  
Old February 2nd, 2010, 06:03 AM posted to microsoft.public.excel.charting
David Biddulph
external usenet poster
 
Posts: 8,714
Default Treadline Equation

If you don't know how to use any Excel function (with the exception of
DATEDIF), look it up in Excel help.
--
David Biddulph

MC wrote:
Haha yes I did mean trendline thanks for that correction. I do not
know what I was thinking when I wrote that.

I do not know how to use the LINEST, TREND, or LOGEST functions, but
I was using the trendline to forecast future expenses, assuming they
increase in a linear fashion (which is more than likely not the case,
but it works well enough).

Thanks for the help - It is much appreciated David and Mike!

"MC" wrote:

Hello Everyone -

When use a series of data and create a chart - then from that create
a treadline to forecast future values - sometimes the formula Excel
provides (used to forecast the future values) is, im guessing, to
big or too long and Excel will place an E next to a number.

Here is an example: y = 762870x + 5E+06


How can I see the equation in its entirety so I can use it?


Thanks!



 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Forum Jump


All times are GMT +1. The time now is 06:33 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 OfficeFrustration.
The comments are property of their posters.