void yt_project_annotate_scale(double data, int size, double scale, double *result) {
// Step 1: Check if input parameters are valid
if (data == NULL || scale == NULL || result == NULL || size <= 0) {
return;
}
// Step 2: Calculate the mean of the data
double mean = 0.0;
for (int i = 0; i < size; i++) {
mean += data[i];
}
mean /= size;
// Step 3: Calculate the standard deviation of the data
double variance = 0.0;
for (int i = 0; i < size; i++) {
double diff = data[i] - mean;
variance += diff * diff;
}
double stddev = sqrt(variance / size);
// Step 4: Scale the data based on the calculated mean and standard deviation
for (int i = 0; i < size; i++) {
result[i] = (data[i] - mean) / stddev * scale[i % size];
}
}