ExcelBanter

ExcelBanter (https://www.excelbanter.com/)
-   Charts and Charting in Excel (https://www.excelbanter.com/charts-charting-excel/)
-   -   Scatter Chart with Smoothed Lines (https://www.excelbanter.com/charts-charting-excel/67209-scatter-chart-smoothed-lines.html)

rachsull

Scatter Chart with Smoothed Lines
 
Does anyone know what function Excel uses to create smooth lines connecting
the points in a scatter plot? Is it a cubic spline?

Bernard Liengme

Scatter Chart with Smoothed Lines
 
Here are results of a Google newsgroup search
http://groups.google.ca/groups?as_q=...0 06&safe=off


The simple answer seems to be "yes"
--
Bernard V Liengme
www.stfx.ca/people/bliengme
remove caps from email

"rachsull" wrote in message
...
Does anyone know what function Excel uses to create smooth lines
connecting
the points in a scatter plot? Is it a cubic spline?




Jon Peltier

Scatter Chart with Smoothed Lines
 
Near the bottom of this page, Brian Murphy of XLRotor claims it's a Bezier
curve:

http://www.xlrotor.com/resources/files.shtml

He's done a bunch of analysis to back it up.

- Jon
-------
Jon Peltier, Microsoft Excel MVP
Peltier Technical Services
Tutorials and Custom Solutions
http://PeltierTech.com/
_______

"Bernard Liengme" wrote in message
...
Here are results of a Google newsgroup search
http://groups.google.ca/groups?as_q=...0 06&safe=off


The simple answer seems to be "yes"
--
Bernard V Liengme
www.stfx.ca/people/bliengme
remove caps from email

"rachsull" wrote in message
...
Does anyone know what function Excel uses to create smooth lines
connecting
the points in a scatter plot? Is it a cubic spline?






Waterboy

Scatter Chart with Smoothed Lines
 
Excellent! Given that Excel is calculating the Bezier curves, why isn't this
excellent interpolating tool offerred as a standard function?

"Jon Peltier" wrote:

Near the bottom of this page, Brian Murphy of XLRotor claims it's a Bezier
curve:

http://www.xlrotor.com/resources/files.shtml

He's done a bunch of analysis to back it up.

- Jon
-------
Jon Peltier, Microsoft Excel MVP
Peltier Technical Services
Tutorials and Custom Solutions
http://PeltierTech.com/
_______

"Bernard Liengme" wrote in message
...
Here are results of a Google newsgroup search
http://groups.google.ca/groups?as_q=...0 06&safe=off


The simple answer seems to be "yes"
--
Bernard V Liengme
www.stfx.ca/people/bliengme
remove caps from email

"rachsull" wrote in message
...
Does anyone know what function Excel uses to create smooth lines
connecting
the points in a scatter plot? Is it a cubic spline?







Jon Peltier

Scatter Chart with Smoothed Lines
 
I'm sure it's because the built-in bezier drawing routines are buried so
deep, it would be a huge effort to extract any of the information, and
translate it into chart axis scales.

- Jon
-------
Jon Peltier, Microsoft Excel MVP
Peltier Technical Services
Tutorials and Custom Solutions
http://PeltierTech.com/
_______


"Waterboy" wrote in message
...
Excellent! Given that Excel is calculating the Bezier curves, why isn't
this
excellent interpolating tool offerred as a standard function?

"Jon Peltier" wrote:

Near the bottom of this page, Brian Murphy of XLRotor claims it's a
Bezier
curve:

http://www.xlrotor.com/resources/files.shtml

He's done a bunch of analysis to back it up.

- Jon
-------
Jon Peltier, Microsoft Excel MVP
Peltier Technical Services
Tutorials and Custom Solutions
http://PeltierTech.com/
_______

"Bernard Liengme" wrote in message
...
Here are results of a Google newsgroup search
http://groups.google.ca/groups?as_q=...0 06&safe=off


The simple answer seems to be "yes"
--
Bernard V Liengme
www.stfx.ca/people/bliengme
remove caps from email

"rachsull" wrote in message
...
Does anyone know what function Excel uses to create smooth lines
connecting
the points in a scatter plot? Is it a cubic spline?









All times are GMT +1. The time now is 08:05 PM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
ExcelBanter.com