scatterplots in gama

[Srirama Bhamidipati]

Hi,

I am currently exporting a csv and drawing a scatterplot in excel. Is there any scatterplot chart in GAMA ? or if anybody has made  use of R via GAMA to plot scatterplots ?

many thanks,

srirama

[Philippe Caillou]

Hi,

Two answer for that right now:

- There should be a simple method, use a xy chart with dot stye, like this:

display scatter

{

chart "scatterplot" type:xy 

{

data "test" value:[[1,3],[2,2],[4,1],[3,5],[6,4],[7,6],[1.5,7],[1.8,8],[3.5,9],[1.2,10],[0.11,11],[11,12]] style:dot color:°black;

}

}

However:

-- First, thanks for the question, I found that there is a bug right now... The style: dot is not working... I am on it :) 

-- Second, and most importantly, you can not have two points with the same x value, which can be problematic for scatterplots.

So, second solution, datalist:

display nbantsdisp2

{

chart "scatterplot" type:xy 

{

datalist value:[[[1,3],[1,2],[1,1],[1,5],[1,4],[1,6],[1,7],[1,8],[1,9],[1,10],[1,11],[1,12]]] inverse_series_categories:true;

}

}

However, it creates a serie for each point, which can be a little confusing (each point has a different color and marker). If you don't (inverse_series_categories:false), you have the same problem than with data statement (no identical x value)..

I will try to fix quickly the style:dot problem, and see if I can do something for the more general problem (no duplicate x)...

Philippe 

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[Arnaud Grignard]

A kind of 3D scatterplot

Models/Features/Color/RGB_to_XYZ.gaml

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[Srirama Bhamidipati]

Hi,

Thank you for the responses. I am plotting a kind of calibration chart in terms of predicted vs actual, which " ideally " should have maximum overlaps of x and y :)  .... although I am sure I haven't got my code correct to have perfect alignment, but yes, my output I expect to have duplicate x and also y.

many thanks, I will now look into your suggestions.

regards,

Sri