英文:
How do I display the largest mean in python code?
问题
在Python代码中，如何显示最大的平均值？在这段代码中，计算了一组数字的平均值。我想要显示最大的平均值。
import csvfrom statistics import meanwith open("numbers.csv") as f:reader = csv.reader(f)max_average = 0 # 初始化最大平均值max_name = "" # 初始化对应的名称for row in reader:name = row[0]these_grades = list()for grade in row[1:]:these_grades.append(int(grade))average = mean(these_grades)if average > max_average:max_average = averagemax_name = nameprint("最大平均值是 %f，对应的名称是 %s" % (max_average, max_name))
number.csv:
arad,19,19,20,18sara,17,18,17,15mahdi,12,13,15,16saber,14,13,15,15adel,19,14,17,16
英文:
How do I display the largest mean in python code?In this code, the average of a number of numbers is calculated. I want the largest average to be displayed
import csvfrom statistics import meanwith open("numbers.csv") as f:reader = csv.reader(f)for row in reader:name = row[0]these_grades = list()for grade in row[1:]:these_grades.append(int(grade))print("avrage of %s is %f" % (name, mean(these_grades)))
number.csv:
arad,19,19,20,18sara,17,18,17,15mahdi,12,13,15,16saber,14,13,15,15adel,19,14,17,16
答案1
得分: 0
以下是翻译好的代码部分：
import csvfrom statistics import meanwith open('number.csv') as f:means = []reader = csv.reader(f)for row in reader:name, grades = row[0], map(int, row[1:])mean_ = mean(grades)means.append(mean_)print('average of %s: %f' % (name, mean_))print('Max average: {}'.format(max(means)))
average of arad: 19.000000average of sara: 16.750000average of mahdi: 14.000000average of saber: 14.250000average of adel: 16.500000Max average: 19
英文:
Use the following approach (accumulate average for each name):
import csvfrom statistics import meanwith open('number.csv') as f:means = []reader = csv.reader(f)for row in reader:name, grades = row[0], map(int, row[1:])mean_ = mean(grades)means.append(mean_)print('average of %s: %f' % (name, mean_))print('Max average: {}'.format(max(means)))
average of arad: 19.000000average of sara: 16.750000average of mahdi: 14.000000average of saber: 14.250000average of adel: 16.500000Max average: 19
答案2
得分: 0
如果你不需要额外的导入（因为没有引号括起的元素，所以简单的分割就足够了）。
如果你对一行代码的方式感兴趣：
maximum_mean = max((sum(map(int, (grades := line.split(","))[1:])) / len(grades)for line in open('numbers.csv')))print(maximum_mean) # 19.0
英文:
You could also do it without additional imports(you don't have quoted elements so a simple split does the job)
If you interested in one-liner:
maximum_mean = max((sum(map(int, (grades := line.split(",")[1:]))) / len(grades)for line in open('numbers.csv')))print(maximum_mean) # 19.0
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