Accessing values in javascript

ec.meanPredict(ctrack.getCurrentParameters()) returns an object containing all the current scores for all emotions.

To get the current score of "Angry", for example, you would do :

ec.meanPredict(ctrack.getCurrentParameters())[0].value

So, in order to get the current most probable emotion, you could do this :

function getCurrentEmotion()
{
    if(!ec.meanPredict(ctrack.getCurrentParameters())){setTimeout(getCurrentEmotion,1000);return;}
    var currentData = ec.meanPredict(ctrack.getCurrentParameters());
    var currentScores = [];

    //Gather all scores in an array
    for(var i=0;i<currentData.length;i++)
    {
        currentScores.push(currentData[i].value);
    }

    //Get the biggest score
    var max = Math.max.apply(null,currentScores);
    //Calculate its index
    var indexOfScore = currentScores.indexOf(max);
    //Get the associated emotion
    var emotion = currentData[indexOfScore].emotion;
    console.log(emotion);

    //Set up a loop (did not add 'var', to allow stopping it from outside)
    currentEmotionLoop = setTimeout(getCurrentEmotion,3000);
}

To stop the loop at any time, do this :

clearTimeout(currentEmotionLoop);

By the way, the ec variable is declared privately, so in order for this to work, either remove var where it is declared :

var ec = new emotionClassifier();

or write this code in the same file, under the same scope.