19 Nov
2015
19 Nov
'15
1:31 p.m.
Excellent example! I have added it in Roassal
Alexandre
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Alexandre Bergel http://www.bergel.eu
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> On Nov 18, 2015, at 8:49 PM, milton mamani akevalion@gmail.com wrote:
>
> Hi Hernan
>
> Try the next piece of code and tell me what you think
>
> | b data |
>
> data := (0 to: 40000 by: 1000)
> collect: [:n | n@ (Random new next * 3) floor].
> b := RTGrapher new.
> b extent: 1000@ 200.
> ds := RTData new.
> ds dotShape rectangle height: 1; width: 25; color: Color blue.
> ds connectUsing: (RTLine new
> color: (Color blue);
> width: 1;
> withHorizontalAttachPoint; yourself).
> ds
> points: data;
> x: #x;
> y: #y.
>
> b add: ds.
> b axisX.
> b axisY title: 'alles Count'.
> b build.
>
> <foo.png>
>
> Cheers,
> Milton
>
> 2015-11-18 17:15 GMT-04:00 Hernán Morales Durand <hernan.morales@gmail.com mailto:hernan.morales@gmail.com>:
> Hello,
>
> I am using Roassal2 (StephanEggermont.40) in Pharo 4. The attached picture displays a common visualization for inference of local ancestry in population genetics, I have attached what I am getting now with Grapher. Input data for such visualization is for example:
>
> 1:454 2:1488 1:2546 2:5711 1:14253 2:24411 1:31490 0:41585
>
> (those are like Associations with key 0, 1 or 2 and value 454, 1488, ... etc)
>
> In the attached picture
>
> Min X is 0 and
> Max X is 41500
>
> so the X axis (chromosome positions) is rendered in intervals between 10000.
>
> This is what I am trying now (code is commented where I tried to configure X axis interval)
>
> | b intv |
>
> intv := 0 to: 40000 by: 10000.
> b := RTGrapher new.
>
> ds := RTStackedDataSet new.
> ds dotShape color: Color red.
> ds
> points: #(1 2 1 2 1 2 1 0);
> x: intv. "????"
> ds barShape width: 99; color: Color red.
> "b
> minX: 0;
> maxX: 41500."
> b add: ds.
> b axisX noLabel; noTick. b axisY noDecimal.
> b build.
>
> I have some questions:
>
> 1) There is support to add an interval label to the X axis but preserving the space relation with the real chromosome position (the X axis) for the data (points in my example = 454 1488 2546 5711 14253 24411 31490 41585)?
>
> 2) How to clear the bar filling?
>
> Any advice or help would be really nice.
>
> Hernán
>
>
>
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