数据处理，去掉数据前后20%，然后取平均

# 没有测(0,0)
# 读取文件
# 排序
# 去掉首尾20%
# 取平均
# 保存数据
# 绘制图像
import numpy as np
import json

filter_data = 'filter_data.json'


def read_uwb_data(name):
    x = []
    f = open('UWBdata/%s.txt' % name)
    for i in f.readlines():
        a = i.strip().split(",")
        x.append([float(a[-3]), float(a[-2]), float(a[-1])])
    return x


def takeFirst(elem):
    return elem[0]


def sort_data(x)://按照第一个元素排序
    x.sort(key=takeFirst)


def delete_start_end(x):
    delete_length = len(x) // 5
    return x[delete_length:-delete_length]


def get_average(x):
    a = np.mean(x, axis=0)
    return a


desk_location = [{}]
for i in range(26 - 6):
    x = read_uwb_data(i + 7)
    sort_data(x)
    x = delete_start_end(x)
    a = get_average(x)
    desk_location[0][i + 7] = [a[0], a[1]]

print(desk_location)
# desk_location = json.dumps(desk_location)
json.dump(desk_location, open(filter_data, "w"))
print(desk_location)

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