Cascade

cascade.py

y3 = [86,90,90,68,86,79,79,78,61,62,45,60]
y2 = [81,81,79,79,77,73,55,55,86,84,83,81]

# 8 modules per band
BAND_SIZE = 8
BAND_DELTA = len(y3) - BAND_SIZE

# Extract BAND_SIZE best year 3 modules
y3_sorted = sorted(y3)
band_3 = y3_sorted[-BAND_SIZE:]

# Init band_2 with remaining year 3 modules
band_2 = y3_sorted[:-BAND_SIZE]

# Populate remaining slots (BAND_DELTA) of band_2
y2_sorted = sorted(y2)
band_2.extend(y2_sorted[-BAND_DELTA:])

# band_1 contains whatever is left
band_1 = y2_sorted[:-BAND_DELTA]

# Calculate the average and weighted average for each band
bands = [band_1, band_2, band_3]
def handle_band(band, weight):
    avg = float(sum(band)) / len(band)
    wavg = avg * weight
    return avg, wavg

print("Band\tAvg.\tW.Avg.")
total = 0
for i, band in enumerate(bands):
    band_no = i+1
    avg, wavg = handle_band(band, band_no)
    total += wavg
    print("%d\t%.2f\t%.2f" % (band_no, avg, wavg))

print("Degree Result: %.2f" % (total/6))