Finding Maximum Value in CSV File

Question

Have an assignment of finding average and maximum rainfall in file \"BoulderWeatherData.csv\". Have found the average using this code:

    rain = open(\"BoulderW         


        

Answer 1

import csv

INPUT  = "BoulderWeatherData.csv"
PRECIP = 4   # 5th column

with open(INPUT, "rU") as inf:
    incsv  = csv.reader(inf)
    header = next(incsv, None)    # skip header row
    precip = [float(row[PRECIP]) for row in incsv]

avg_precip = sum(precip, 0.) / (1 and len(precip))  # prevent div-by-0
max_precip = max(precip)

print(
    "Avg precip: {:0.3f} in/day, max precip: {:0.3f} in/day"
    .format(avg_precip, max_precip)
)

returns

Avg precip: 0.055 in/day, max precip: 1.980 in/day