# 星期-时间时刻散点平面坐标系统计大小量，Python，matplotlib（1）

zhangphil 2022-08-06 09:08:01 阅读数:686

``````import datetime
from random import randrange
from datetime import timedelta
import matplotlib.pyplot as plt
from collections import Counter
from pprint import pprint
import numpy as np
SAMPLE_COUNT = 50
# 在start和end两个日期之间生成一个随机日期
def random_date(start, end):
delta = end - start
seconds_delta = (delta.days * 24 * 60 * 60) # 开始日期和结束日期之间相差的秒数
random_seconds = randrange(seconds_delta)
return start + timedelta(seconds=random_seconds)
def my_date_time():
date_times = []
start_date = datetime.datetime(2000, 1, 1)
end_date = datetime.datetime(2021, 12, 31)
cnt = 0
while cnt < SAMPLE_COUNT:
r = random_date(start_date, end_date)
date_times.append(r)
cnt = cnt + 1
return date_times
# 把数字0,1,2,3,4,5,6转换为星期*
# 0为星期一，6为星期日，依次类推
def number_to_weekday(number):
zh = ['一', '二', '三', '四', '五', '六', '日']
weekday = f'星期{zh[number]}'
return weekday
def date_to_points():
date_times = my_date_time()
hours = []
for i in range(24):
hours.append((i, i + 1))
points = []
for dt in date_times:
for h in hours:
if h[0] <= dt.hour < h[1]:
point = (h[0], dt.weekday(), h, dt) # weekday() # 0是星期一，6是星期日
points.append(point)
break
to_chart(points)
def to_chart(points):
print(points)
tx, ty = [], []
xy = []
for p in points:
tx.append(p[0])
ty.append(p[1])
xy.append((p[0], p[1]))
print(xy)
c_xy = Counter(xy)
pprint(c_xy)
sizes = []
for p in xy:
for k, v in c_xy.items():
if k == p:
print("坐标点{}, 出现{}次".format(k, v))
sizes.append(v * 50 + 10)
break
plt.style.use('_mpl-gallery')
# plot
plt.rcParams['font.sans-serif'] = ['SimHei'] # 中文乱码
fig, ax = plt.subplots()
colors = np.random.uniform(15, 80, len(tx))
ax.scatter(tx, ty, s=sizes, c=colors, vmin=0, vmax=100)
x_labels = []
for i in range(24):
x_labels.append((i, i + 1))
y_labels = []
for i in range(7):
y_labels.append(number_to_weekday(i))
plt.xticks(ticks=np.arange(start=0, stop=24, step=1), labels=x_labels, rotation=45, size=10, color='red')
plt.yticks(ticks=np.linspace(start=0, stop=7, endpoint=False, num=7, dtype=np.int32), labels=y_labels, rotation=10)
plt.show()
if __name__ == '__main__':
date_to_points()
``````

``````[(15, 2, (15, 16), datetime.datetime(2020, 2, 5, 15, 46, 32)), (1, 0, (1, 2), datetime.datetime(2007, 3, 5, 1, 16, 30)), (14, 6, (14, 15), datetime.datetime(2017, 6, 11, 14, 21, 59)), (17, 1, (17, 18), datetime.datetime(2020, 4, 14, 17, 56, 26)), (3, 6, (3, 4), datetime.datetime(2012, 2, 19, 3, 36, 45)), (21, 3, (21, 22), datetime.datetime(2021, 6, 3, 21, 7, 45)), (17, 5, (17, 18), datetime.datetime(2006, 10, 14, 17, 25, 7)), (4, 0, (4, 5), datetime.datetime(2014, 10, 27, 4, 20, 42)), (21, 0, (21, 22), datetime.datetime(2014, 2, 24, 21, 5, 46)), (5, 3, (5, 6), datetime.datetime(2004, 2, 26, 5, 9, 18)), (14, 3, (14, 15), datetime.datetime(2002, 6, 20, 14, 20, 48)), (17, 1, (17, 18), datetime.datetime(2003, 11, 11, 17, 47, 49)), (19, 1, (19, 20), datetime.datetime(2003, 6, 3, 19, 11, 29)), (10, 2, (10, 11), datetime.datetime(2006, 1, 4, 10, 37, 58)), (23, 5, (23, 24), datetime.datetime(2007, 2, 17, 23, 21, 16)), (19, 6, (19, 20), datetime.datetime(2017, 11, 12, 19, 31, 41)), (21, 6, (21, 22), datetime.datetime(2016, 2, 21, 21, 53, 32)), (16, 0, (16, 17), datetime.datetime(2017, 5, 22, 16, 2, 4)), (5, 6, (5, 6), datetime.datetime(2018, 12, 2, 5, 34)), (7, 6, (7, 8), datetime.datetime(2009, 8, 23, 7, 51, 23)), (19, 6, (19, 20), datetime.datetime(2015, 1, 25, 19, 59, 26)), (1, 4, (1, 2), datetime.datetime(2016, 2, 26, 1, 49, 59)), (11, 1, (11, 12), datetime.datetime(2017, 8, 8, 11, 34, 17)), (9, 0, (9, 10), datetime.datetime(2013, 7, 22, 9, 30, 53)), (12, 6, (12, 13), datetime.datetime(2021, 11, 7, 12, 55, 9)), (12, 5, (12, 13), datetime.datetime(2009, 2, 7, 12, 47, 11)), (0, 2, (0, 1), datetime.datetime(2001, 12, 5, 0, 33, 45)), (13, 5, (13, 14), datetime.datetime(2015, 6, 13, 13, 40, 23)), (18, 1, (18, 19), datetime.datetime(2009, 1, 20, 18, 54, 6)), (20, 3, (20, 21), datetime.datetime(2012, 2, 9, 20, 23, 18)), (6, 3, (6, 7), datetime.datetime(2017, 2, 23, 6, 13, 26)), (2, 1, (2, 3), datetime.datetime(2005, 4, 19, 2, 6)), (10, 2, (10, 11), datetime.datetime(2014, 4, 30, 10, 15, 19)), (23, 0, (23, 24), datetime.datetime(2015, 3, 30, 23, 35, 29)), (19, 6, (19, 20), datetime.datetime(2011, 10, 30, 19, 20, 6)), (2, 1, (2, 3), datetime.datetime(2015, 1, 6, 2, 4, 21)), (7, 2, (7, 8), datetime.datetime(2020, 12, 16, 7, 15, 51)), (11, 1, (11, 12), datetime.datetime(2010, 11, 16, 11, 35, 1)), (9, 1, (9, 10), datetime.datetime(2003, 5, 6, 9, 23, 26)), (23, 2, (23, 24), datetime.datetime(2010, 6, 30, 23, 55, 23)), (11, 0, (11, 12), datetime.datetime(2005, 12, 26, 11, 38, 48)), (23, 4, (23, 24), datetime.datetime(2015, 7, 10, 23, 42, 25)), (3, 4, (3, 4), datetime.datetime(2000, 11, 17, 3, 51, 2)), (18, 2, (18, 19), datetime.datetime(2018, 1, 10, 18, 55, 23)), (21, 2, (21, 22), datetime.datetime(2005, 2, 2, 21, 56, 26)), (13, 3, (13, 14), datetime.datetime(2015, 1, 15, 13, 49, 5)), (23, 6, (23, 24), datetime.datetime(2015, 7, 19, 23, 2, 30)), (21, 2, (21, 22), datetime.datetime(2012, 1, 25, 21, 52, 40)), (6, 6, (6, 7), datetime.datetime(2016, 1, 10, 6, 37, 37)), (19, 0, (19, 20), datetime.datetime(2007, 5, 7, 19, 9, 37))]
[(15, 2), (1, 0), (14, 6), (17, 1), (3, 6), (21, 3), (17, 5), (4, 0), (21, 0), (5, 3), (14, 3), (17, 1), (19, 1), (10, 2), (23, 5), (19, 6), (21, 6), (16, 0), (5, 6), (7, 6), (19, 6), (1, 4), (11, 1), (9, 0), (12, 6), (12, 5), (0, 2), (13, 5), (18, 1), (20, 3), (6, 3), (2, 1), (10, 2), (23, 0), (19, 6), (2, 1), (7, 2), (11, 1), (9, 1), (23, 2), (11, 0), (23, 4), (3, 4), (18, 2), (21, 2), (13, 3), (23, 6), (21, 2), (6, 6), (19, 0)]
Counter({(19, 6): 3,
(17, 1): 2,
(10, 2): 2,
(11, 1): 2,
(2, 1): 2,
(21, 2): 2,
(15, 2): 1,
(1, 0): 1,
(14, 6): 1,
(3, 6): 1,
(21, 3): 1,
(17, 5): 1,
(4, 0): 1,
(21, 0): 1,
(5, 3): 1,
(14, 3): 1,
(19, 1): 1,
(23, 5): 1,
(21, 6): 1,
(16, 0): 1,
(5, 6): 1,
(7, 6): 1,
(1, 4): 1,
(9, 0): 1,
(12, 6): 1,
(12, 5): 1,
(0, 2): 1,
(13, 5): 1,
(18, 1): 1,
(20, 3): 1,
(6, 3): 1,
(23, 0): 1,
(7, 2): 1,
(9, 1): 1,
(23, 2): 1,
(11, 0): 1,
(23, 4): 1,
(3, 4): 1,
(18, 2): 1,
(13, 3): 1,
(23, 6): 1,
(6, 6): 1,
(19, 0): 1})

``````

x=19,y=6，也即星期天的(19,20)，发生的事件最多,圆最大。