Hi Thushan,

You can retrieve the number of output classes (or class labels of response
variable) via this [1] API (e.g.
https://localhost:9443/api/datasets/1/stats?feature=Class). Number of
unique labels in that feature values are given in the JSON response like
below.

[
    {
        "missing": 0,
        "median": "0",
        "values": [
            [
                "0",
                500
            ],
            [
                "1",
                268
            ]
        ],
        *"unique": 2,*
        "std": "0.477",
        "mean": "0.349",
        "bar": true,
        "key": "Frequency"
    }
]

[1]
https://docs.wso2.com/display/ML100/Retrieve+summarized+statistics+of+a+feature+in+a+dataset+via+REST+API

Regards,
CD

On Wed, Aug 19, 2015 at 5:47 PM, Thushan Ganegedara <[email protected]>
wrote:

> Hi all,
>
> The D3 visualization component is almost ready. I've to tweak few things.
> I'm attaching an images of what it looks like. Also there's a button for
> updating the visualization whenever the Layer Sizes input text is changed
>
> Could someone please tell me a way to obtain the number of classes with an
> ajax call maybe? I could obtain the input feature count but not the output
> class count.
>
> --
> Regards,
>
> Thushan Ganegedara
> School of IT
> University of Sydney, Australia
>



-- 
*CD Athuraliya*
Software Engineer
WSO2, Inc.
lean . enterprise . middleware
Mobile: +94 716288847 <94716288847>
LinkedIn <http://lk.linkedin.com/in/cdathuraliya> | Twitter
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