public double[] getAvg(int output, Array1D state, KMetaDependencies meta) {
double[] avg = new double[meta.origin().inputs().length];
double total = state.get(getCounter(output, meta));
if (total != 0) {
for (int i = 0; i < meta.origin().inputs().length; i++) {
avg[i] = state.get(getIndex(i, output, SUM, meta)) / total;
}
}
return avg;
}
public double[] getVariance(int output, Array1D state, double[] avg, KMetaDependencies meta) {
double[] variances = new double[meta.origin().inputs().length];
double total = state.get(getCounter(output, meta));
if (total != 0) {
for (int i = 0; i < meta.origin().inputs().length; i++) {
variances[i] =
state.get(getIndex(i, output, SUMSQUARE, meta)) / total
- avg[i] * avg[i]; // x count/ (count-1)
}
}
return variances;
}
private int getCounter(int output, KMetaDependencies meta) {
return output * (NUMOFFIELDS * meta.origin().inputs().length + 1)
+ NUMOFFIELDS * meta.origin().inputs().length;
}
private int getIndex(int input, int output, int field, KMetaDependencies meta) {
return output * (NUMOFFIELDS * meta.origin().inputs().length + 1) + NUMOFFIELDS * input + field;
}