绘图布局-Y轴范围不起作用

Question

i am trying to create a graph that will show a Scatter of the times i opened my computer. - i am using plotly offline. Y = time, X = date.

this works fine, but i can't make the Y axis to show all the hours of the day, but only the range of times that was in the data.

(for example, if i opened my computer only between 13:00-15:00 every day, the range of the Y axis will be from 13:00 to 15:00 only)

i am trying to show all the hours of the day on the Y axis by using the 'range' attribute in the layout, but it still doesn't work for me.

an example of my code:

from plotly.offline import download_plotlyjs, init_notebook_mode, plot, iplot
from plotly.graph_objs import *
from datetime import datetime, time

init_notebook_mode(connected=True)

# in the example i am using fabricated data. declaring the data:
time_data = [datetime(2017, 07, 28, 21, 37, 19), datetime(2017, 07, 29, 17, 11, 56), datetime(2017, 08, 01, 11, 15, 45), datetime(2017, 08, 02, 13, 54, 03)]
x_data = []
y_data = []

# creating the x-row data with dates only, and the y-row data with the time only
for row in time_data:
    x_data.append(row.date())
    y_data.append(datetime.combine(datetime(2017, 1, 1).date(), row.time))

#declaring the data for the graph
data = [Scatter(x=x_data, y=y_data, name='Times On', mode='markers')]

# creating the hour range 
hours = []
for i in range (0, 24):
    hours.append(datetime(2017, 1, 1, i, 0, 0))

# declaring the Layout with the 'range' attribute, and Figure
layout = dict(title='Times On', xaxis=dict(type='date'), yaxis={'type': 'date', 'tickformat': '%H:%M', 'range': hours})
fig = Figure(data=data, layout=layout)

# plotting
plot(figure_or_data=fig, filename='C:\Users\tototo\Desktop\Time-On')

does someone know what's the problem? any help would be blessed! Thanks!

Answer 1

plotly seems to limit the axis based on the max and min values present in the corresponding axis. I tried each of the properties and came up with a solution.

Approach: The first one is generating what you need, but cant seem to get it to start at 12 in the midnight and end at 12 the next day.

from plotly.offline import download_plotlyjs, init_notebook_mode, plot, iplot
from plotly.graph_objs import *
from datetime import datetime, time

init_notebook_mode(connected=True)

# in the example i am using fabricated data. declaring the data:
time_data = [datetime(2017, 7, 28, 21, 37, 19), datetime(2017, 7, 29, 17, 11, 56), datetime(2017,8, 1, 11, 15, 45), datetime(2017, 8, 2, 13, 54, 3)]
x_data = []
y_data = []

# creating the x-row data with dates only, and the y-row data with the time only
for row in time_data:
    x_data.append(row.date())
    y_data.append(str(datetime.combine(datetime(2017, 1, 1).date(), row.time())))

#declaring the data for the graph
data = [Scatter(x=x_data, y=y_data, name='Times On', mode='markers')]

# creating the hour range 
hours = []
for i in range (0, 24):
    hours.append(datetime(2017, 1, 1, i, 0, 0))

# declaring the Layout with the 'range' attribute, and Figure
layout = dict(title='Times On', xaxis=dict(type='date'), yaxis={'type': 'date', 'tickformat': '%H:%M', 
                                                                'nticks': 30, 'tick0': hours[0],
                                                                'range': [hours[0], hours[len(hours)-1]],
                                                                'autorange': False})
fig = Figure(data=data, layout=layout)

# plotting
iplot(figure_or_data=fig)

The above code is giving me the output: