EyeSee Composite Diagram - Moose-dev

5 May 2013

Hello, I'm trying to put on the same graph a cloud of points and a straight
line calculated by the method of least squares. Not working very well when
I use a code like what goes down:

|x y data scat line k xx yy renderer|
...
  x := #(0 1 2 3 4).
 y := #(0 1 2 3 4).
 data := OrderedCollection new.
 k := 0.
 x size timesRepeat: [
 k := k + 1. xx := x at: k. yy := y at: k.
 data add: xx @ yy
 ].
 scat := ESScatterPlot new.
 scat
 x: [:each| each value x];
 y: [:each| each value y];
 baseAxisLine;
 valueAxis;
 models: data.
 line := ESLineDiagram new.
 line
 x: [:each| each value x];
 y: [:each| each value y];
 models: data.

 renderer := ESDiagramRenderer new.
 renderer compositeDiagram
 add: scat;
 add: line.

 renderer open 

The chart can be seen in http://tinypic.com/r/34zeicg/5.

Already grateful for any assistance.

-- 
Sds.,

Francisco Ary Martins
http://chicoary.wordpress.com
----
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  Grouch Marx