在x轴上仅显示每个<n>日期（或按月分组）以减少x轴混乱
我目前正在通过使用Jupyter Notebook和matplotlib库从JSON数据生成一些图形来学习一些Python。我已经能够制作出很棒的图表，但是我不确定如何使我的x轴混乱。请参见下面的屏幕截图。每天都有一个值，传入的数据有数百天。这会造成一个非常混乱的x轴，无法读取。
代码：
dates = [i['daily_sales_date'] for i in json_data]
values = [i['daily_sales'] for i in json_data]
print('sample date: ' + dates[0])
print('sample value: ' + str(values[0]))
df = pd.DataFrame({'dates':dates, 'values':values})
df['dates'] = [pd.to_datetime(i) for i in df['dates']]
plt.bar(dates, values)
结果：
那条黑色的粗条是我所有的约会:)。我尝试查看一些示例，这些示例应该使x轴日期变得整洁，但我没有让它们起作用。我很乐意要么只显示沿轴的日期的子集，要么只显示月份名称。我能做的最好的事情就是使x轴标签完全不显示：/有什么建议吗？
我根据建议之一尝试了以下操作：
from matplotlib.dates import MonthLocator
register_matplotlib_converters()
然后创建图形：
如您所见，我现在有2019年（年份），但是没有月份？为了清晰起见（应要求），下面提供了示例数据
[
{
"RowInsertDateTime": "2019-04-10T13:10:00.6",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 4994.2,
"daily_sales_date": "2019-04-10T00:00:00"
},
{
"RowInsertDateTime": "2019-04-09T23:00:01.213",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 8868.75,
"daily_sales_date": "2019-04-09T00:00:00"
},
{
"RowInsertDateTime": "2019-04-08T23:00:02.093",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 4618.55,
"daily_sales_date": "2019-04-08T00:00:00"
},
{
"RowInsertDateTime": "2019-04-07T23:00:01.52",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 5710.01,
"daily_sales_date": "2019-04-07T00:00:00"
},
{
"RowInsertDateTime": "2019-04-06T23:00:01.42",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9674.46,
"daily_sales_date": "2019-04-06T00:00:00"
},
{
"RowInsertDateTime": "2019-04-05T23:50:01.977",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9243.66,
"daily_sales_date": "2019-04-05T00:00:00"
},
{
"RowInsertDateTime": "2019-04-04T23:50:01.5",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 8865.75,
"daily_sales_date": "2019-04-04T00:00:00"
},
{
"RowInsertDateTime": "2019-04-03T23:00:01.003",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 5530.14,
"daily_sales_date": "2019-04-03T00:00:00"
},
{
"RowInsertDateTime": "2019-04-02T23:00:01.71",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 4893.77,
"daily_sales_date": "2019-04-02T00:00:00"
},
{
"RowInsertDateTime": "2019-04-01T23:00:01.61",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 3741.6,
"daily_sales_date": "2019-04-01T00:00:00"
},
{
"RowInsertDateTime": "2019-03-31T23:00:00.893",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 8727.52,
"daily_sales_date": "2019-03-31T00:00:00"
},
{
"RowInsertDateTime": "2019-03-30T23:00:01.263",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9572.48,
"daily_sales_date": "2019-03-30T00:00:00"
},
{
"RowInsertDateTime": "2019-03-29T23:50:01.937",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 20003.71,
"daily_sales_date": "2019-03-29T00:00:00"
},
{
"RowInsertDateTime": "2019-03-28T23:50:00.933",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 29890.54,
"daily_sales_date": "2019-03-28T00:00:00"
},
{
"RowInsertDateTime": "2019-03-27T23:00:01.267",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 19669.24,
"daily_sales_date": "2019-03-27T00:00:00"
},
{
"RowInsertDateTime": "2019-03-26T23:00:13.68",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 18655.44,
"daily_sales_date": "2019-03-26T00:00:00"
},
{
"RowInsertDateTime": "2019-03-25T23:00:12.427",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 4876.38,
"daily_sales_date": "2019-03-25T00:00:00"
},
{
"RowInsertDateTime": "2019-03-24T23:00:16.313",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 8467.17,
"daily_sales_date": "2019-03-24T00:00:00"
},
{
"RowInsertDateTime": "2019-03-23T23:00:23.517",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 12542.34,
"daily_sales_date": "2019-03-23T00:00:00"
},
{
"RowInsertDateTime": "2019-03-22T23:50:14.363",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 12119.07,
"daily_sales_date": "2019-03-22T00:00:00"
},
{
"RowInsertDateTime": "2019-03-21T23:50:12.527",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9403.31,
"daily_sales_date": "2019-03-21T00:00:00"
},
{
"RowInsertDateTime": "2019-03-20T23:00:15.797",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 5872.87,
"daily_sales_date": "2019-03-20T00:00:00"
},
{
"RowInsertDateTime": "2019-03-19T23:10:09.547",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 4634.91,
"daily_sales_date": "2019-03-19T00:00:00"
},
{
"RowInsertDateTime": "2019-03-18T23:00:10.887",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 5789.16,
"daily_sales_date": "2019-03-18T00:00:00"
},
{
"RowInsertDateTime": "2019-03-17T23:00:07.93",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9743.17,
"daily_sales_date": "2019-03-17T00:00:00"
},
{
"RowInsertDateTime": "2019-03-16T23:00:12.367",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 10729.08,
"daily_sales_date": "2019-03-16T00:00:00"
},
{
"RowInsertDateTime": "2019-03-15T23:50:09.177",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9404.83,
"daily_sales_date": "2019-03-15T00:00:00"
},
{
"RowInsertDateTime": "2019-03-14T23:50:11.423",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9029.93,
"daily_sales_date": "2019-03-14T00:00:00"
},
{
"RowInsertDateTime": "2019-03-13T23:00:17.653",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 4464.14,
"daily_sales_date": "2019-03-13T00:00:00"
},
{
"RowInsertDateTime": "2019-03-12T23:00:14.063",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 4711.15,
"daily_sales_date": "2019-03-12T00:00:00"
},
{
"RowInsertDateTime": "2019-03-11T23:00:11.227",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 7090.3,
"daily_sales_date": "2019-03-11T00:00:00"
},
{
"RowInsertDateTime": "2019-03-10T23:00:07.127",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 8083.23,
"daily_sales_date": "2019-03-10T00:00:00"
},
{
"RowInsertDateTime": "2019-03-09T23:10:10.253",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 10253.7,
"daily_sales_date": "2019-03-09T00:00:00"
},
{
"RowInsertDateTime": "2019-03-08T23:50:09.863",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 12339.06,
"daily_sales_date": "2019-03-08T00:00:00"
},
{
"RowInsertDateTime": "2019-03-07T23:50:10.497",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 10200.52,
"daily_sales_date": "2019-03-07T00:00:00"
},
{
"RowInsertDateTime": "2019-03-06T23:10:10.87",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 6694.55,
"daily_sales_date": "2019-03-06T00:00:00"
},
{
"RowInsertDateTime": "2019-03-05T23:10:08.707",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 5779.48,
"daily_sales_date": "2019-03-05T00:00:00"
},
{
"RowInsertDateTime": "2019-03-04T23:00:09.39",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 4954.72,
"daily_sales_date": "2019-03-04T00:00:00"
},
{
"RowInsertDateTime": "2019-03-03T23:00:10.75",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 8473.28,
"daily_sales_date": "2019-03-03T00:00:00"
},
{
"RowInsertDateTime": "2019-03-02T23:00:09.637",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 11327.68,
"daily_sales_date": "2019-03-02T00:00:00"
},
{
"RowInsertDateTime": "2019-03-01T23:50:11.49",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 11075.8,
"daily_sales_date": "2019-03-01T00:00:00"
},
{
"RowInsertDateTime": "2019-02-28T23:50:10.217",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9143.1,
"daily_sales_date": "2019-02-28T00:00:00"
},
{
"RowInsertDateTime": "2019-02-27T23:00:09.44",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 5523.66,
"daily_sales_date": "2019-02-27T00:00:00"
},
{
"RowInsertDateTime": "2019-02-26T23:00:08.913",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 5235.5,
"daily_sales_date": "2019-02-26T00:00:00"
},
{
"RowInsertDateTime": "2019-02-25T23:00:19.74",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 5379.84,
"daily_sales_date": "2019-02-25T00:00:00"
},
{
"RowInsertDateTime": "2019-02-24T23:00:09.44",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 7194.78,
"daily_sales_date": "2019-02-24T00:00:00"
},
{
"RowInsertDateTime": "2019-02-23T23:00:11.783",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9438.9,
"daily_sales_date": "2019-02-23T00:00:00"
},
{
"RowInsertDateTime": "2019-02-22T23:50:07.167",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9989.46,
"daily_sales_date": "2019-02-22T00:00:00"
},
{
"RowInsertDateTime": "2019-02-21T23:50:06.98",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 10120.73,
"daily_sales_date": "2019-02-21T00:00:00"
},
{
"RowInsertDateTime": "2019-02-20T23:00:14.46",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 5732.03,
"daily_sales_date": "2019-02-20T00:00:00"
}
]
3 个答案:
答案 0 :(得分：2)
您唯一的主要问题是“日期”是字符串。如果将字符串转换为日期，则绘图将按预期显示。您已经在数据框内部进行了此操作，但是不要在任何其他代码中使用该列。
df = pd.DataFrame({'dates':dates, 'values':values})
df['dates'] = pd.to_datetime(df['dates']) # possibly format="..."
plt.bar(df['dates'].values, df['values'].values)
# The complete example would be:
import pandas as pd
import matplotlib.pyplot as plt
json_data = [
{
"RowInsertDateTime": "2019-04-10T13:10:00.6",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 4994.2,
"daily_sales_date": "2019-04-10T00:00:00"
},
{
"RowInsertDateTime": "2019-04-09T23:00:01.213",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 8868.75,
"daily_sales_date": "2019-04-09T00:00:00"
},
{
"RowInsertDateTime": "2019-04-08T23:00:02.093",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 4618.55,
"daily_sales_date": "2019-04-08T00:00:00"
},
{
"RowInsertDateTime": "2019-04-07T23:00:01.52",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 5710.01,
"daily_sales_date": "2019-04-07T00:00:00"
},
{
"RowInsertDateTime": "2019-04-06T23:00:01.42",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9674.46,
"daily_sales_date": "2019-04-06T00:00:00"
},
{
"RowInsertDateTime": "2019-04-05T23:50:01.977",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9243.66,
"daily_sales_date": "2019-04-05T00:00:00"
},
{
"RowInsertDateTime": "2019-04-04T23:50:01.5",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 8865.75,
"daily_sales_date": "2019-04-04T00:00:00"
},
{
"RowInsertDateTime": "2019-04-03T23:00:01.003",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 5530.14,
"daily_sales_date": "2019-04-03T00:00:00"
},
{
"RowInsertDateTime": "2019-04-02T23:00:01.71",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 4893.77,
"daily_sales_date": "2019-04-02T00:00:00"
},
{
"RowInsertDateTime": "2019-04-01T23:00:01.61",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 3741.6,
"daily_sales_date": "2019-04-01T00:00:00"
},
{
"RowInsertDateTime": "2019-03-31T23:00:00.893",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 8727.52,
"daily_sales_date": "2019-03-31T00:00:00"
},
{
"RowInsertDateTime": "2019-03-30T23:00:01.263",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9572.48,
"daily_sales_date": "2019-03-30T00:00:00"
},
{
"RowInsertDateTime": "2019-03-29T23:50:01.937",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 20003.71,
"daily_sales_date": "2019-03-29T00:00:00"
},
{
"RowInsertDateTime": "2019-03-28T23:50:00.933",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 29890.54,
"daily_sales_date": "2019-03-28T00:00:00"
},
{
"RowInsertDateTime": "2019-03-27T23:00:01.267",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 19669.24,
"daily_sales_date": "2019-03-27T00:00:00"
},
{
"RowInsertDateTime": "2019-03-26T23:00:13.68",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 18655.44,
"daily_sales_date": "2019-03-26T00:00:00"
},
{
"RowInsertDateTime": "2019-03-25T23:00:12.427",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 4876.38,
"daily_sales_date": "2019-03-25T00:00:00"
},
{
"RowInsertDateTime": "2019-03-24T23:00:16.313",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 8467.17,
"daily_sales_date": "2019-03-24T00:00:00"
},
{
"RowInsertDateTime": "2019-03-23T23:00:23.517",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 12542.34,
"daily_sales_date": "2019-03-23T00:00:00"
},
{
"RowInsertDateTime": "2019-03-22T23:50:14.363",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 12119.07,
"daily_sales_date": "2019-03-22T00:00:00"
},
{
"RowInsertDateTime": "2019-03-21T23:50:12.527",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9403.31,
"daily_sales_date": "2019-03-21T00:00:00"
},
{
"RowInsertDateTime": "2019-03-20T23:00:15.797",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 5872.87,
"daily_sales_date": "2019-03-20T00:00:00"
},
{
"RowInsertDateTime": "2019-03-19T23:10:09.547",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 4634.91,
"daily_sales_date": "2019-03-19T00:00:00"
},
{
"RowInsertDateTime": "2019-03-18T23:00:10.887",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 5789.16,
"daily_sales_date": "2019-03-18T00:00:00"
},
{
"RowInsertDateTime": "2019-03-17T23:00:07.93",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9743.17,
"daily_sales_date": "2019-03-17T00:00:00"
},
{
"RowInsertDateTime": "2019-03-16T23:00:12.367",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 10729.08,
"daily_sales_date": "2019-03-16T00:00:00"
},
{
"RowInsertDateTime": "2019-03-15T23:50:09.177",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9404.83,
"daily_sales_date": "2019-03-15T00:00:00"
},
{
"RowInsertDateTime": "2019-03-14T23:50:11.423",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9029.93,
"daily_sales_date": "2019-03-14T00:00:00"
},
{
"RowInsertDateTime": "2019-03-13T23:00:17.653",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 4464.14,
"daily_sales_date": "2019-03-13T00:00:00"
},
{
"RowInsertDateTime": "2019-03-12T23:00:14.063",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 4711.15,
"daily_sales_date": "2019-03-12T00:00:00"
},
{
"RowInsertDateTime": "2019-03-11T23:00:11.227",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 7090.3,
"daily_sales_date": "2019-03-11T00:00:00"
},
{
"RowInsertDateTime": "2019-03-10T23:00:07.127",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 8083.23,
"daily_sales_date": "2019-03-10T00:00:00"
},
{
"RowInsertDateTime": "2019-03-09T23:10:10.253",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 10253.7,
"daily_sales_date": "2019-03-09T00:00:00"
},
{
"RowInsertDateTime": "2019-03-08T23:50:09.863",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 12339.06,
"daily_sales_date": "2019-03-08T00:00:00"
},
{
"RowInsertDateTime": "2019-03-07T23:50:10.497",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 10200.52,
"daily_sales_date": "2019-03-07T00:00:00"
},
{
"RowInsertDateTime": "2019-03-06T23:10:10.87",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 6694.55,
"daily_sales_date": "2019-03-06T00:00:00"
},
{
"RowInsertDateTime": "2019-03-05T23:10:08.707",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 5779.48,
"daily_sales_date": "2019-03-05T00:00:00"
},
{
"RowInsertDateTime": "2019-03-04T23:00:09.39",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 4954.72,
"daily_sales_date": "2019-03-04T00:00:00"
},
{
"RowInsertDateTime": "2019-03-03T23:00:10.75",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 8473.28,
"daily_sales_date": "2019-03-03T00:00:00"
},
{
"RowInsertDateTime": "2019-03-02T23:00:09.637",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 11327.68,
"daily_sales_date": "2019-03-02T00:00:00"
},
{
"RowInsertDateTime": "2019-03-01T23:50:11.49",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 11075.8,
"daily_sales_date": "2019-03-01T00:00:00"
},
{
"RowInsertDateTime": "2019-02-28T23:50:10.217",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9143.1,
"daily_sales_date": "2019-02-28T00:00:00"
},
{
"RowInsertDateTime": "2019-02-27T23:00:09.44",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 5523.66,
"daily_sales_date": "2019-02-27T00:00:00"
},
{
"RowInsertDateTime": "2019-02-26T23:00:08.913",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 5235.5,
"daily_sales_date": "2019-02-26T00:00:00"
},
{
"RowInsertDateTime": "2019-02-25T23:00:19.74",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 5379.84,
"daily_sales_date": "2019-02-25T00:00:00"
},
{
"RowInsertDateTime": "2019-02-24T23:00:09.44",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 7194.78,
"daily_sales_date": "2019-02-24T00:00:00"
},
{
"RowInsertDateTime": "2019-02-23T23:00:11.783",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9438.9,
"daily_sales_date": "2019-02-23T00:00:00"
},
{
"RowInsertDateTime": "2019-02-22T23:50:07.167",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 9989.46,
"daily_sales_date": "2019-02-22T00:00:00"
},
{
"RowInsertDateTime": "2019-02-21T23:50:06.98",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 10120.73,
"daily_sales_date": "2019-02-21T00:00:00"
},
{
"RowInsertDateTime": "2019-02-20T23:00:14.46",
"ServerName": "P781S001",
"StoreName": "PRICELINE WERRIBEE",
"daily_sales": 5732.03,
"daily_sales_date": "2019-02-20T00:00:00"
}
]
dates = [i['daily_sales_date'] for i in json_data]
values = [i['daily_sales'] for i in json_data]
print('sample date: ' + dates[0])
print('sample value: ' + str(values[0]))
df = pd.DataFrame({'dates':dates, 'values':values})
df['dates'] = pd.to_datetime(df['dates']) # possibly format="..."
plt.bar(df['dates'].values, df['values'].values)
plt.show()
答案 1 :(得分：1)
使用刻度线定位器：
from matplotlib.dates import MonthLocator
ax.xaxis.set_major_locator(MonthLocator())
这将为每个月创建一个刻度。有关更多自定义选项，请参见docs。
答案 2 :(得分：0)
您只能显示第n个日期以减少混乱：
ticks = ax.get_xticks()
labels = ax.get_xticklabels()
n = len(ticks) // 10 # Show 10 ticks.
ax.set_xticks(ticks[::n])
ax.set_xticklabels(labels[::n])
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