具有序列的数组元素

Question

想要绘制x_values_edited和速度。我有这个错误：

  

ValueError：使用序列设置数组元素

plt.plot(x_values_edited, speed, '.' )

我的代码和输入在这里：

x_values_Edited：

[datetime.datetime（2015,1,1,0,0），datetime.datetime（2015,1,1,0,1），datetime.datetime（2015,1,1,0,2），datetime .datetime（2015,1,1,0,3），datetime.datetime（2015,1,1,0,4），datetime.datetime（2015,1,1,0,5），datetime.datetime（2015， 1,1,0,6），datetime.datetime（2015,1,1,0,7），datetime.datetime（2015，

速度

[[58.5,97.0,56.0,87.5,95.0,100.0,104.0,98.5,101.0,98.5,86.5,90.0,97.5,16.5,103.0,98.0,48.0,98.5,93.5,99.0,101.5,86.5,108.5 ，22.0,92.5,84.5,103.5,86.5,103.0,96.5,91.5,101.5,86.0]，[99.5,101.0,96.5,94.5,92.0,89.5,83.0,94.0,97.5,103.5,93.5,101.0,95.5,89.0 ，102.5,89.0,104.5,1010.0,107.0,96.5,97.5,97.5,93.0,95.0,88.5,89.0,101.0,97.0,98.5，]]

Answer 1

这是一个工作示例。我必须产生时间，因为你还没有在你的问题中包含完整的输入：

from matplotlib.pyplot import plot, show
from datetime import datetime, timedelta

def date_range(stop, start, step=1):
    """
    Time generator
    :param stop: Stop time
    :type stop: Start time
    :param start: Steps based upon which the time is to be calculated.
    :type start: datetime.datetime()
    :param step: datetime.datetime()
    :type step: int, float
    """
    delta_date = stop - start
    numerator = 0

    while numerator < delta_date.seconds:
        yield start + timedelta(0, numerator)
        numerator += step

speed = [
    58.5, 97.0, 56.0, 87.5, 95.0, 100.0, 104.0, 
    98.5, 101.0, 98.5, 86.5, 90.0, 97.5, 16.5, 
    103.0, 98.0, 48.0, 98.5, 93.5, 99.0, 101.5, 
    86.5, 108.5, 22.0, 92.5, 84.5, 103.5, 86.5, 
    103.0, 96.5, 91.5, 101.5, 86.0
]


speed_len = len(speed)

# Hypothetical start time
date_start = datetime(2014, 3, 15, 0)
# and finish time
date_end = datetime(2014, 3, 15, 0, int(speed_len/60), speed_len%60)

# Generate a time list: 1 second per item in |speed|
x_values_edited = [val for val in date_range(stop=date_end, start=date_start, step=1)]

# Scatter plot
plot(x_values_edited, speed, '.')

# Display the plot
show()

显示：

Answer 2

这是一个快速修复。

来自matplotlib.pyplot import scatter，show，xlim，ylim

from matplotlib.pyplot import scatter, show, xlim, ylim

for index, item in enumerate(speed):
    scatter([times[index]]*len(item), item, marker='.')

xlim(min(times), max(times))
ylim(min(min(speed)), max(max(speed)))
show()

产地：

对不起，花了很长时间。我不得不在地下做！