前n行的平均值

def calculate_average(data, n):
    if n > len(data):
        raise ValueError("n should be less than or equal to the length of data")
    return sum(data[:n]) / n

# 示例数据
data = [10, 20, 30, 40, 50]
n = 3

# 计算前3行的平均值
average = calculate_average(data, n)
print(f"The average of the first {n} rows is: {average}")

def calculate_average(data, n):
    numeric_data = [x for x in data[:n] if isinstance(x, (int, float))]
    if len(numeric_data) == 0:
        raise ValueError("No valid numeric data found")
    return sum(numeric_data) / len(numeric_data)

def calculate_average(data, n):
    if n > len(data):
        raise ValueError("n should be less than or equal to the length of data")
    return sum(data[:n]) / n