python 中二维数组中间隔的最大值

Question

I have data with 2D arrays with two columns.(first column height,second power)

arr1 = np.array([[30, 12.1], [30.2,12.5],[33, 12.4], [30.1,12.7],[34, 13.2], [35,13,7],[34, 13.2], [30.05,12.3],[30.05,12.7]])

I would like have intervals for height between 32 in 48 with step 0.3. For each interval I would like calculate maximum value for power.

For example: I have interval for height example [30-30.3]. The maximum power for that interval is 12.7.

In new 2D array I would like save 30.05 for column height(first column) and 12.7 for column power(second column).

Answer 1

import numpy as np
def maximum(arr, start,end):
    m = -1
    for i in arr:
        if(i[0]<=end and i[0]>=start):
            if(m<i[1]):
                m = i[1]
    return m
arr1 = np.array([[30, 12.1], [30.2,12.5],[33, 12.4], [30.1,12.7],[34, 13.2], [35,13.7],[34, 13.2], [30.05,12.3],[30.05,12.7]])
print(maximum(arr1,30,30.3))

I think this will help you in your desired output.