| Home |
| Search |
| Today's Posts |
|
#1
Posted to microsoft.public.excel.misc
|
|||
|
|||
Excel Charts - deciding what trendline to use!
Can anyone help?
I have created an Excel chart showing by week the number of letter submissions and now I want to forecast what will be received in the coming weeks and show the forcast on the chart. How do I do this and what's the best trendline to use. The letter submissions varies each week and can be anything from 20 to 150 |
|
#2
Posted to microsoft.public.excel.misc
|
|||
|
|||
|
Excel Charts - deciding what trendline to use!
In general, a linear relationship is probably most useful. Don't use
polynomial fits, especially for projections. If the amount increases (or decreases) by a certain percentage each period, then you could use an exponential relationship. Logarithmic or power law relationships are sometimes useful, but I don't think they'll be useful for your purposes. - Jon ------- Jon Peltier Peltier Technical Services, Inc. http://peltiertech.com/ debbied wrote: Can anyone help? I have created an Excel chart showing by week the number of letter submissions and now I want to forecast what will be received in the coming weeks and show the forcast on the chart. How do I do this and what's the best trendline to use. The letter submissions varies each week and can be anything from 20 to 150 |
| Reply |
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Forum | |||
| how do i add a quadratic trendline to excel | Charts and Charting in Excel | |||
| need help deciding which formulas/format to use | Excel Discussion (Misc queries) | |||
| How do I floodfill excel scatter charts only below the trendline? | Charts and Charting in Excel | |||
| I want to stop excel deciding the number format of a cell for me | Excel Worksheet Functions | |||
| how do i add a quadratic trendline to excel | Charts and Charting in Excel | |||
Linear Mode
