从计数函数中得到错误的结果

Question

这是我的代码，我知道它不够干净，但它不能像我想的那样运行，有人可以帮助我吗？

我修好了，谢谢你的帮助

这段代码的大致思路是将每个坐标与一个范围进行比较，并计算每个网格的点数

结果是： {'other': 862, 'B4': 2, 'D5': 1, 'A1': 0, 'D4': 2, 'A3': 2, 'A2': 2, 'A4': 0, 'B2': 36, 'B3': 8, 'C3': 15, 'C2': 50, 'C1': 1, 'C4': 7, 'D3': 4, 'C5': 1, 'B1': 7}

不知道为什么'other'得到这么多

 import json
    from pprint import pprint
    xa1_min = 144.700000
    xa1_max = 144.850000
    ya1_min = -37.650000
    ya1_max = -37.500000

    xa2_min = 144.850000
    xa2_max = 145.000000
    ya2_min = -37.650000
    ya2_max = -37.500000

    xa3_min = 145.000000
    xa3_max = 145.150000
    ya3_min = -37.650000
    ya3_max = -37.500000

    xa4_min =145.150000
    xa4_max =145.300000
    ya4_min =-37.650000
    ya4_max =-37.500000

    xb1_min =144.700000
    xb1_max =144.850000
    yb1_min =-37.800000
    yb1_max =-37.650000

    xb2_min =144.850000
    xb2_max =145.000000
    yb2_min =-37.800000
    yb2_max =-37.650000

    xb3_min =145.000000
    xb3_max =145.150000
    yb3_min =-37.800000
    yb3_max =-37.650000

    xb4_min =145.150000
    xb4_max =145.300000
    yb4_min =-37.800000
    yb4_max =-37.650000

    xc1_min =144.700000
    xc1_max =144.850000
    yc1_min =-37.950000
    yc1_max =-37.800000

    xc2_min =144.850000
    xc2_max =145.000000
    yc2_min =-37.950000
    yc2_max =-37.800000

    xc3_min =145.000000
    xc3_max =145.150000
    yc3_min =-37.950000
    yc3_max =-37.800000

    xc4_min =145.150000
    xc4_max =145.300000
    yc4_min = -37.950000
    yc4_max = -37.800000

    xc5_min =145.300000
    xc5_max =145.450000
    yc5_min =-37.950000
    yc5_max =-37.800000

    xd3_min =145.000000
    xd3_max =145.150000
    yd3_min =-38.100000
    yd3_max =-37.950000

    xd4_min =145.150000
    xd4_max =145.300000
    yd4_min =-38.100000
    yd4_max =-37.950000

    xd5_min =145.300000
    xd5_max =145.450000
    yd5_min =-38.100000
    yd5_max =-37.950000
    #["properties"]['ID']
    # Reading from grid
    with open('tinyTwitter.json') as load_f:
        info = json.load(load_f)

    coordinates = list()
    #print info

    for line in info:
        #print line['json']['coordinates']['coordinates']
        coordinates.append(line['json']['coordinates']['coordinates'])

    #print coordinates[0][1]
    #print coordinates[0][0]

    counts = {'A1':0,'A2':0,'A3':0,'A4':0,'B1':0,'B2':0,'B3':0,'B4':0,'C1':0,'C2':0,'C3':0,'C4':0,'C5':0,'D3':0,'D4':0,'D5':0,'other':0}
    #comparing
    def compare(x,y):


    if xa1_min <= x <= xa1_max and ya1_min <= y <= ya1_max:
        counts['A1'] +=1

    elif xa2_min <= x <= xa2_max and ya2_min <=y<= ya2_max:
        counts['A2'] +=1

    elif xa3_min <= x <= xa3_max and ya3_min <=y<= ya3_max:
        counts['A3'] +=1

    elif xa4_min <= x <= xa4_max and ya4_min <=y<= ya4_max:
        counts['A4'] += 1

    elif xb1_min <= x <= xb1_max and yb1_min <=y<= yb1_max:
        counts['B1'] += 1

    elif xb2_min <= x <= xb2_max and yb2_min <=y<= yb2_max:
        counts['B2'] += 1

    elif xb3_min <= x <= xb3_max and yb3_min <=y<= yb3_max:
        counts['B3'] += 1

    elif xb4_min <= x <= xb4_max and yb4_min <=y<= yb4_max:
        counts['B4'] += 1

    elif xc1_min <= x <= xc1_max and yc1_min <=y<= yc1_max:
        counts['C1'] += 1

    elif xc2_min <= x <= xc2_max and yc2_min <=y<= yc2_max:
        counts['C2'] += 1

    elif xc3_min <= x <= xc3_max and yc3_min <=y<= yc3_max:
        counts['C3'] += 1

    elif xc4_min <= x <= xc4_max and yc4_min <=y<= yc4_max:
        counts['C4'] += 1

    elif xc5_min <= x <= xc5_max and yc5_min <=y<= yc5_max:
        counts['C5'] += 1

    elif xd3_min <= x <= xd3_max and yd3_min <=y<= yd3_max:
        counts['D3'] += 1

    elif xd4_min <= x <= xd4_max and yd4_min <=y<= yd4_max:
        counts['D4'] += 1

    elif xd5_min <= x <= xd5_max and yd5_min <=y<= yd5_max:
        counts['D5'] += 1

    else:
        counts['other']+= 1

        #print counts

    for i,j in coordinates:
        #print i,j
        compare(i,j)
    print counts

Answer 1

替换表格的行

counts['A1']+=counts['A1']

表格行

counts['A1']+=1

实际上，您永远不会递增 counts，因为您每次都将其当前值 (0) 添加到它。

Answer 2

也许您正在寻找：

len(counts.keys())

如果不是，围绕您的问题提供更多背景信息将有助于找到解决方案。此外，看起来您可以通过将那些 min/max 数据点存储在字典列表中并将这些比较语句压缩到一个循环中来节省相当多的代码重复。大致如下：

data = [{'x-min': 0, 'x-max': 1, 'y-min': 0, 'y-max': 1, 'count': 0}, ...]

def within_threshold(x1, y1, point):
    within_x = x >= point['x-min'] and x <= point['x-max']
    within_y = y >= point['y-min'] and y <= point['y-max']
    return within_x and within_y

def compare(x, y):
    for point in data:
        if within_threshold(x, y, point):
            point['count'] += 1

从计数函数中得到错误的结果

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