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description display_as has_thumbnail ipynb language layout name order page_type permalink thumbnail title v4upgrade
How to make Gantt Charts in Python with Plotly. Gantt Charts use horizontal bars to represent the start and end times of tasks.
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Gantt Charts
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Python Gantt Charts | plotly
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A Gantt chart is a type of bar chart that illustrates a project schedule. The chart lists the tasks to be performed on the vertical axis, and time intervals on the horizontal axis. The width of the horizontal bars in the graph shows the duration of each activity.

See also the bar charts examples.

Simple Gantt Chart

import plotly.figure_factory as ff

df = [dict(Task="Job A", Start='2009-01-01', Finish='2009-02-28'),
      dict(Task="Job B", Start='2009-03-05', Finish='2009-04-15'),
      dict(Task="Job C", Start='2009-02-20', Finish='2009-05-30')]

fig = ff.create_gantt(df)
fig.show()

Index by Numeric Variable

import plotly.figure_factory as ff

df = [dict(Task="Job A", Start='2009-01-01', Finish='2009-02-28', Complete=10),
      dict(Task="Job B", Start='2008-12-05', Finish='2009-04-15', Complete=60),
      dict(Task="Job C", Start='2009-02-20', Finish='2009-05-30', Complete=95)]

fig = ff.create_gantt(df, colors='Viridis', index_col='Complete', show_colorbar=True)
fig.show()

Index by String Variable

import plotly.figure_factory as ff

df = [dict(Task="Job A", Start='2009-01-01', Finish='2009-02-01', Resource='Apple'),
      dict(Task="Job B", Start='2009-03-05', Finish='2009-04-15', Resource='Grape'),
      dict(Task="Job C", Start='2009-04-20', Finish='2009-09-30', Resource='Banana')]

colors = ['#7a0504', (0.2, 0.7, 0.3), 'rgb(210, 60, 180)']

fig = ff.create_gantt(df, colors=colors, index_col='Resource', reverse_colors=True,
                      show_colorbar=True)
fig.show()

Use a Dictionary for Colors

import plotly.figure_factory as ff

df = [dict(Task="Job A", Start='2016-01-01', Finish='2016-01-02', Resource='Apple'),
      dict(Task="Job B", Start='2016-01-02', Finish='2016-01-04', Resource='Grape'),
      dict(Task="Job C", Start='2016-01-02', Finish='2016-01-03', Resource='Banana')]

colors = dict(Apple='rgb(220, 0, 0)', Grape='rgb(170, 14, 200)', Banana=(1, 0.9, 0.16))

fig = ff.create_gantt(df, colors=colors, index_col='Resource', show_colorbar=True)
fig.show()

Use a Pandas Dataframe

import plotly.figure_factory as ff

import pandas as pd
df = pd.read_csv('https://raw.githubusercontent.com/plotly/datasets/master/gantt_example.csv')

fig = ff.create_gantt(df, colors=['#333F44', '#93e4c1'], index_col='Complete',
                      show_colorbar=True, bar_width=0.2, showgrid_x=True, showgrid_y=True)
fig.show()

Using Hours and Minutes in Times

import plotly.figure_factory as ff

df = [
    dict(Task='Morning Sleep', Start='2016-01-01', Finish='2016-01-01 6:00:00', Resource='Sleep'),
    dict(Task='Breakfast', Start='2016-01-01 7:00:00', Finish='2016-01-01 7:30:00', Resource='Food'),
    dict(Task='Work', Start='2016-01-01 9:00:00', Finish='2016-01-01 11:25:00', Resource='Brain'),
    dict(Task='Break', Start='2016-01-01 11:30:00', Finish='2016-01-01 12:00:00', Resource='Rest'),
    dict(Task='Lunch', Start='2016-01-01 12:00:00', Finish='2016-01-01 13:00:00', Resource='Food'),
    dict(Task='Work', Start='2016-01-01 13:00:00', Finish='2016-01-01 17:00:00', Resource='Brain'),
    dict(Task='Exercise', Start='2016-01-01 17:30:00', Finish='2016-01-01 18:30:00', Resource='Cardio'),
    dict(Task='Post Workout Rest', Start='2016-01-01 18:30:00', Finish='2016-01-01 19:00:00', Resource='Rest'),
    dict(Task='Dinner', Start='2016-01-01 19:00:00', Finish='2016-01-01 20:00:00', Resource='Food'),
    dict(Task='Evening Sleep', Start='2016-01-01 21:00:00', Finish='2016-01-01 23:59:00', Resource='Sleep')
]

colors = dict(Cardio = 'rgb(46, 137, 205)',
              Food = 'rgb(114, 44, 121)',
              Sleep = 'rgb(198, 47, 105)',
              Brain = 'rgb(58, 149, 136)',
              Rest = 'rgb(107, 127, 135)')

fig = ff.create_gantt(df, colors=colors, index_col='Resource', title='Daily Schedule',
                      show_colorbar=True, bar_width=0.8, showgrid_x=True, showgrid_y=True)
fig.show()

Group Tasks Together

import plotly.figure_factory as ff

df = [dict(Task="Job-1", Start='2017-01-01', Finish='2017-02-02', Resource='Complete'),
      dict(Task="Job-1", Start='2017-02-15', Finish='2017-03-15', Resource='Incomplete'),
      dict(Task="Job-2", Start='2017-01-17', Finish='2017-02-17', Resource='Not Started'),
      dict(Task="Job-2", Start='2017-01-17', Finish='2017-02-17', Resource='Complete'),
      dict(Task="Job-3", Start='2017-03-10', Finish='2017-03-20', Resource='Not Started'),
      dict(Task="Job-3", Start='2017-04-01', Finish='2017-04-20', Resource='Not Started'),
      dict(Task="Job-3", Start='2017-05-18', Finish='2017-06-18', Resource='Not Started'),
      dict(Task="Job-4", Start='2017-01-14', Finish='2017-03-14', Resource='Complete')]

colors = {'Not Started': 'rgb(220, 0, 0)',
          'Incomplete': (1, 0.9, 0.16),
          'Complete': 'rgb(0, 255, 100)'}

fig = ff.create_gantt(df, colors=colors, index_col='Resource', show_colorbar=True,
                      group_tasks=True)
fig.show()

Reference

help(ff.create_gantt)