function findRegression()

in MotionMark/resources/runner/motionmark.js [100:128]
27 lines of code
4 McCabe index (conditional complexity)

        function findRegression(series, profile) {
            var minIndex = Math.round(.025 * series.length);
            var maxIndex = Math.round(.975 * (series.length - 1));
            var minComplexity = series.getFieldInDatum(minIndex, Strings.json.complexity);
            var maxComplexity = series.getFieldInDatum(maxIndex, Strings.json.complexity);

            if (Math.abs(maxComplexity - minComplexity) < 20 && maxIndex - minIndex < 20) {
                minIndex = 0;
                maxIndex = series.length - 1;
                minComplexity = series.getFieldInDatum(minIndex, Strings.json.complexity);
                maxComplexity = series.getFieldInDatum(maxIndex, Strings.json.complexity);
            }

            var complexityIndex = series.fieldMap[Strings.json.complexity];
            var frameLengthIndex = series.fieldMap[Strings.json.frameLength];
            var regressionOptions = { desiredFrameLength: 1000/this._targetFrameRate };
            if (profile)
                regressionOptions.preferredProfile = profile;
            return {
                minComplexity: minComplexity,
                maxComplexity: maxComplexity,
                samples: series.slice(minIndex, maxIndex + 1),
                regression: new Regression(
                    series.data,
                    function (data, i) { return data[i][complexityIndex]; },
                    function (data, i) { return data[i][frameLengthIndex]; },
                    minIndex, maxIndex, regressionOptions)
            };
        }