Difference between revisions of "Chart2/TrendLines"
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< Chart2
Tonygalmiche (Talk | contribs) (→Trend line for X) |
Tonygalmiche (Talk | contribs) (→Error bar for X) |
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[[Image:Chart2_TrendLines99.png]] | [[Image:Chart2_TrendLines99.png]] | ||
* Error bar for X added to the existent Y one | * Error bar for X added to the existent Y one | ||
| − | * covered in http://www.openoffice.org/issues/show_bug.cgi?id= | + | * covered in http://www.openoffice.org/issues/show_bug.cgi?id=42946 |
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== Data source for values or the error bar == | == Data source for values or the error bar == | ||
Revision as of 14:45, 15 July 2007
Contents
- 1 Allow regression lines also for bar charts
- 2 Add polynomial regression type
- 3 Allow more than one regression line for one series
- 4 Extrapolating of trend lines
- 5 Mean value for X and center of gravity
- 6 Trend line equation and coefficients
- 7 Error bar for X
- 8 Data source for values or the error bar
Allow regression lines also for bar charts
Add polynomial regression type
- Different types of regression lines are already offered: linear regression, exponential regression. But a polynomial regression curve is still missing. A macro on this site offers a workaround (french only):
- http://oooconv.free.fr/fitoo/fitoo_fr.html
- covered in http://www.openoffice.org/issues/show_bug.cgi?id=20819
Allow more than one regression line for one series
Extrapolating of trend lines
- Trend lines should also allow extrapolating. If data ranges from 1 to 5 but that x axes range from -2 to 10, then the trend line should display from -2 to +10.
- In Excel, the setting is called forward forecast and backward forecast.
- covered in http://www.openoffice.org/issues/show_bug.cgi?id=5085
Mean value for X and center of gravity
- Get the mean value not only for Y but also for X. A special symbol could mark the intersection point (the center of gravity).
- covered in http://www.openoffice.org/issues/show_bug.cgi?id=64816
Trend line equation and coefficients
- It's not possible to automatically add the equation of the trend line and the coefficients.
- This point is one of the last that block several schools migrations.
- covered in http://www.openoffice.org/issues/show_bug.cgi?id=7998
Error bar for X
- Error bar for X added to the existent Y one
- covered in http://www.openoffice.org/issues/show_bug.cgi?id=42946
Data source for values or the error bar
- Obtain the value of the error bar from row or column in Calc
- covered in http://www.openoffice.org/issues/show_bug.cgi?id=366
