Python matplotlib - 如何在x轴上绘制一条线？

Question

所以我正在开发一个新项目，我正在使用matplotlib来跟踪我的习惯。 y轴是我所有习惯的列表（底部是“保留者”，顶部是“UAS”（我的俱乐部会议））。 x轴是1 - 天的数字（例如2018年1月的1-31）。我试图在图表后面划一条线，如果没有完成任何习惯，它将隐藏在x轴下，并且会在任何特定的日子同样地达到多少习惯。我的问题是将行绘制在（0，x），或者使用正确的语法：plt.plot（（0），（0）），实际上将其绘制在看似（1,1）或带有我的标签的位置（ 1， “保持器”）。这会给人一种至少养成一种习惯的印象。

在matplotlib的先前版本中，似乎没有与图形线直到轴的争吵，但现在应用了自动“缓冲”空间，因此您不能再这样做了。

我不想改变那个缓冲区空间，我只想在没有习惯完成的情况下在x轴上绘制我的线条，这样就不会显示。

目前的习惯只是测试数据，我提到它，否则它看起来有点奇怪。

这是一张图片，后面是我的代码：

picture of plot, graph line is scale with completed habits (red), but is one element too high

和我的代码：

import matplotlib.pyplot as plt
import calendar
import datetime
import atexit

def main():
    global trackers
    activities = ["Retainer","Steps Goal","Drink Water","6+ Hours Sleep","<=2 Sodas","Study","Leave Campus","Clean","Mike","Paint","Phone Call","Saw Friends","UAS"]
    trackers = []
    completed = []
    days_in_month = calendar.monthrange(int(str(datetime.datetime.now())[0:4]),int(str(datetime.datetime.now())[5:7]))[1]
    current_day = int(str(datetime.datetime.now())[8:11])
    file = open("trackers.txt","r")
    data = file.readlines()
    for i in range(len(data)):
        data[i] = data[i].rstrip("
").rstrip("").rstrip(",")
        trackers.append(data[i].split(","))
        for b in range(len(trackers[-1])):
            trackers[-1][b] = int(trackers[-1][b])
    print("Trackers Loaded")

    plt.switch_backend('TkAgg')

    for i in range(days_in_month):
        completed.append(0)
        for b in range(len(trackers)):
            completed[-1] += trackers[b][i]

    plt.plot(tuple([i for i in range(days_in_month)]), tuple(completed),c = "k")

    plt.axvline(x=current_day - 1, c="#ccf3ff", linewidth = 30, zorder = -1)
    plt.grid()

    plt.title("Habit Tracker")
    plt.yticks([i for i in range(len(trackers))],tuple(activities))
    plt.xticks([i for i in range(days_in_month)],[i for i in range(1,days_in_month + 1)])
    for i in range(len(trackers)):
        for b in range(days_in_month):
            if trackers[i][b] == 1:
                plt.plot(b,i,"rs", markersize = 8)
            else:
                plt.plot(b,i,"s", color = "#d2d2d2", markersize = 8)

    mng = plt.get_current_fig_manager()
    mng.window.state('zoomed')

    plt.show()

    return

@atexit.register
def exit():
    file = open("trackers.txt","w")
    for i in range(len(trackers)):
        for b in range(len(trackers[i])):
            file.write(str(trackers[i][b]) + ",")
        file.write("
")
    print("Trackers Saved")

if __name__ == "__main__":
    main()

如果你想运行它，你需要附带的文件“trackers.txt”，它可以在程序运行之间保存所有习惯数据，这里是我文件的直接副本。只需复制并粘贴此内容即可避免读取错误。确保在此文件的末尾添加一个空行！

0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,

先感谢您！