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. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
EXCEL polynomial trendlines
I have been generating trendlines to a number of data set's using a
polynomial fit. If I do not set the intercept to zero the equation indicated on the graph is correct when I re-generate the trendline curve using second data set inputing x to obtain y. However, if I set the intercept to pass through zero the equation given does not give the correct trendline when I regenerate the curve using a new input data set for x to obtain y. Doe anyone have any suggestions of comments as to why this is happening and what can do to stop it? |
Thread Tools | |
Display Modes | |
|
|