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plotly - update subplot titles after traces where createtd

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When make_subplots is used it's creating (correctly placed) annotations. So this can be mostly duplicated using annotation methods. In general, for the first:

fig.add_annotation(xref = "x domain", yref = "y domain", x = 0.5, y = 1.2, showarrow = False,
   text = "a", row = 1, col = 1)

Full example, using bold text:

import plotly.graph_objects as go
from plotly.subplots import make_subplots

fig = make_subplots(rows=3, cols=1)

fig.add_trace(go.Scatter(x=[1, 2, 3], y=[4, 5, 6]), row=1, col=1)
fig.add_annotation(xref="x domain",yref="y domain",x=0.5, y=1.2, showarrow=False,
text="<b>Hey</b>", row=1, col=1)

fig.add_trace(go.Scatter(x=[1, 2, 3], y=[4, 5, 6]), row=2, col=1)
fig.add_annotation(xref="x domain",yref="y domain",x=0.5, y=1.2, showarrow=False,
text="<b>Bee</b>", row=2, col=1)

fig.add_trace(go.Scatter(x=[1, 2, 3], y=[4, 5, 6]), row=3, col=1)
fig.add_annotation(xref="x domain",yref="y domain",x=0.5, y=1.2, showarrow=False,
text="<b>See</b>", row=3, col=1)

fig.show()

You can iterate through the xaxes as follows. This sets the x axis title on each subgraph:

for i in range(3):
   fig['layout'][f 'xaxis{i+1}'].update(title = f 'Title {i+1}')

Try this,

fig.update_layout(margin = dict(l = 20, r = 20, t = 20, b = 20), paper_bgcolor = "LightSteelBlue", xaxis_title = 'X Label Name', yaxis_title = "Y Label Name")

Suggestion : 2

Here is an example of creating a figure that includes two scatter traces which are side-by-side since there are 2 columns and 1 row in the subplot layout.,Here is an example of creating a figure with subplots that are stacked on top of each other since there are 3 rows and 1 column in the subplot layout.,Here is an example of creating a figure with two scatter traces in side-by-side subplots. The left subplot is set to be wider than the right one.,Here is an example that creates a figure with a 2 x 2 subplot grid, where the y axes of each row are linked.

from plotly.subplots
import make_subplots
import plotly.graph_objects as go

fig = make_subplots(rows = 1, cols = 2)

fig.add_trace(
   go.Scatter(x = [1, 2, 3], y = [4, 5, 6]),
   row = 1, col = 1
)

fig.add_trace(
   go.Scatter(x = [20, 30, 40], y = [50, 60, 70]),
   row = 1, col = 2
)

fig.update_layout(height = 600, width = 800, title_text = "Side By Side Subplots")
fig.show()
from plotly.subplots
import make_subplots
import plotly.graph_objects as go

fig = make_subplots(rows = 3, cols = 1)

fig.append_trace(go.Scatter(
   x = [3, 4, 5],
   y = [1000, 1100, 1200],
), row = 1, col = 1)

fig.append_trace(go.Scatter(
   x = [2, 3, 4],
   y = [100, 110, 120],
), row = 2, col = 1)

fig.append_trace(go.Scatter(
   x = [0, 1, 2],
   y = [10, 11, 12]
), row = 3, col = 1)

fig.update_layout(height = 600, width = 600, title_text = "Stacked Subplots")
fig.show()
import plotly.graph_objects as go
from plotly.subplots
import make_subplots

fig = make_subplots(rows = 2, cols = 2, start_cell = "bottom-left")

fig.add_trace(go.Scatter(x = [1, 2, 3], y = [4, 5, 6]),
   row = 1, col = 1)

fig.add_trace(go.Scatter(x = [20, 30, 40], y = [50, 60, 70]),
   row = 1, col = 2)

fig.add_trace(go.Scatter(x = [300, 400, 500], y = [600, 700, 800]),
   row = 2, col = 1)

fig.add_trace(go.Scatter(x = [4000, 5000, 6000], y = [7000, 8000, 9000]),
   row = 2, col = 2)

fig.show()
from plotly.subplots
import make_subplots
import plotly.graph_objects as go

fig = make_subplots(
   rows = 2, cols = 2,
   subplot_titles = ("Plot 1", "Plot 2", "Plot 3", "Plot 4"))

fig.add_trace(go.Scatter(x = [1, 2, 3], y = [4, 5, 6]),
   row = 1, col = 1)

fig.add_trace(go.Scatter(x = [20, 30, 40], y = [50, 60, 70]),
   row = 1, col = 2)

fig.add_trace(go.Scatter(x = [300, 400, 500], y = [600, 700, 800]),
   row = 2, col = 1)

fig.add_trace(go.Scatter(x = [4000, 5000, 6000], y = [7000, 8000, 9000]),
   row = 2, col = 2)

fig.update_layout(height = 500, width = 700,
   title_text = "Multiple Subplots with Titles")

fig.show()
from plotly.subplots
import make_subplots
import plotly.graph_objects as go

fig = make_subplots(rows = 1, cols = 2)

fig.add_trace(
   go.Scatter(
      x = [1, 2, 3],
      y = [4, 5, 6],
      mode = "markers+text",
      text = ["Text A", "Text B", "Text C"],
      textposition = "bottom center"
   ),
   row = 1, col = 1
)

fig.add_trace(
   go.Scatter(
      x = [20, 30, 40],
      y = [50, 60, 70],
      mode = "markers+text",
      text = ["Text D", "Text E", "Text F"],
      textposition = "bottom center"
   ),
   row = 1, col = 2
)

fig.update_layout(height = 600, width = 800, title_text = "Subplots with Annotations")

fig.show()
import plotly.graph_objects as go
from plotly.subplots
import make_subplots

fig = make_subplots(rows = 1, cols = 2, column_widths = [0.7, 0.3])

fig.add_trace(go.Scatter(x = [1, 2, 3], y = [4, 5, 6]),
   row = 1, col = 1)

fig.add_trace(go.Scatter(x = [20, 30, 40], y = [50, 60, 70]),
   row = 1, col = 2)

fig.show()

Suggestion : 3

I have a plotly plot composed of subplots -,When make_subplots is used it's creating anycodings_plotly (correctly placed) annotations. So this anycodings_plotly can be mostly duplicated using anycodings_plotly annotation methods. In general, for the anycodings_plotly first:,I was to add a title for every the subplots anycodings_python but only after the figure is created and the anycodings_python traces are added. I.e not when I create the anycodings_python figure -,Related question setting showgrid on anycodings_plotly each axis: Plotly set showgrid = False anycodings_plotly for ALL subplots

I have a plotly plot composed of subplots -

fig = make_subplots(
   rows = 3, cols = 1)

fig.add_trace(go.Scatter(x = [1, 2, 3], y = [4, 5, 6]), row = 1, col = 1)
fig.add_trace(go.Scatter(x = [1, 2, 3], y = [4, 5, 6]), row = 2, col = 1)
fig.add_trace(go.Scatter(x = [1, 2, 3], y = [4, 5, 6]), row = 3, col = 1)

I was to add a title for every the subplots anycodings_python but only after the figure is created and the anycodings_python traces are added. I.e not when I create the anycodings_python figure -

fig = make_subplots(
      rows = 3, cols = 1, subplot_titles = ['a', 'b', 'c']

When make_subplots is used it's creating anycodings_plotly (correctly placed) annotations. So this anycodings_plotly can be mostly duplicated using anycodings_plotly annotation methods. In general, for the anycodings_plotly first:

fig.add_annotation(xref = "x domain", yref = "y domain", x = 0.5, y = 1.2, showarrow = False,
   text = "a", row = 1, col = 1)

Full example, using bold text:

import plotly.graph_objects as go
from plotly.subplots import make_subplots

fig = make_subplots(rows=3, cols=1)

fig.add_trace(go.Scatter(x=[1, 2, 3], y=[4, 5, 6]), row=1, col=1)
fig.add_annotation(xref="x domain",yref="y domain",x=0.5, y=1.2, showarrow=False,
text="<b>Hey</b>", row=1, col=1)

fig.add_trace(go.Scatter(x=[1, 2, 3], y=[4, 5, 6]), row=2, col=1)
fig.add_annotation(xref="x domain",yref="y domain",x=0.5, y=1.2, showarrow=False,
text="<b>Bee</b>", row=2, col=1)

fig.add_trace(go.Scatter(x=[1, 2, 3], y=[4, 5, 6]), row=3, col=1)
fig.add_annotation(xref="x domain",yref="y domain",x=0.5, y=1.2, showarrow=False,
text="<b>See</b>", row=3, col=1)

fig.show()

You can iterate through the xaxes as anycodings_plotly follows. This sets the x axis title on anycodings_plotly each subgraph:

for i in range(3):
   fig['layout'][f 'xaxis{i+1}'].update(title = f 'Title {i+1}')

Try this,

fig.update_layout(margin = dict(l = 20, r = 20, t = 20, b = 20), paper_bgcolor = "LightSteelBlue", xaxis_title = 'X Label Name', yaxis_title = "Y Label Name")

Suggestion : 4

Plotly - update subplot titles after traces where createtd,Plotly: How to set title color for scatter traces when not using plotly express?,matplotlib pie chart replacing last pie subplot title with actual title of the main plot [duplicate],I got this idea from https://community.plotly.com/t/subplot-title-alignment/33210/2 when it's described how to access each plot's annotation.

The following code does the trick you want.

import numpy as np
import plotly.graph_objects as go
from plotly.subplots
import make_subplots

fig = make_subplots(rows = 1, cols = 2, subplot_titles = ("Plot 1", "Plot 2"))
fig.add_trace(go.Bar(y = [1, 2, 3]), row = 1, col = 1)
fig.add_trace(go.Scatter(y = np.random.randint(1, 10, 50)), row = 1, col = 2)

fig.layout.annotations[1].update(text = "Stackoverflow")

fig.show()

Suggestion : 5

Figures with subplots are created using the make_subplots function from the plotly.subplots module.,Here is an example that creates a figure with a 2 x 2 subplot grid, populates each subplot with a scatter trace, and then updates the x and y axis titles for each subplot individually.,The subplot_titles argument to make_subplots can be used to position text annotations as titles for each subplot.,Here is an example of creating a figure with subplots that are stacked on top of each other since there are 3 rows and 1 column in the subplot layout.

from plotly.subplots
import make_subplots
import plotly.graph_objects as go

fig = make_subplots(rows = 1, cols = 2)

fig.add_trace(
   go.Scatter(x = [1, 2, 3], y = [4, 5, 6]),
   row = 1, col = 1
)

fig.add_trace(
   go.Scatter(x = [20, 30, 40], y = [50, 60, 70]),
   row = 1, col = 2
)

fig.update_layout(height = 600, width = 800, title_text = "Side By Side Subplots")
fig.show()
from plotly.subplots
import make_subplots
import plotly.graph_objects as go

fig = make_subplots(rows = 3, cols = 1)

fig.append_trace(go.Scatter(
   x = [3, 4, 5],
   y = [1000, 1100, 1200],
), row = 1, col = 1)

fig.append_trace(go.Scatter(
   x = [2, 3, 4],
   y = [100, 110, 120],
), row = 2, col = 1)

fig.append_trace(go.Scatter(
   x = [0, 1, 2],
   y = [10, 11, 12]
), row = 3, col = 1)

fig.update_layout(height = 600, width = 600, title_text = "Stacked Subplots")
fig.show()
import plotly.graph_objects as go
from plotly.subplots
import make_subplots

fig = make_subplots(rows = 2, cols = 2, start_cell = "bottom-left")

fig.add_trace(go.Scatter(x = [1, 2, 3], y = [4, 5, 6]),
   row = 1, col = 1)

fig.add_trace(go.Scatter(x = [20, 30, 40], y = [50, 60, 70]),
   row = 1, col = 2)

fig.add_trace(go.Scatter(x = [300, 400, 500], y = [600, 700, 800]),
   row = 2, col = 1)

fig.add_trace(go.Scatter(x = [4000, 5000, 6000], y = [7000, 8000, 9000]),
   row = 2, col = 2)

fig.show()
from plotly.subplots
import make_subplots
import plotly.graph_objects as go

fig = make_subplots(
   rows = 2, cols = 2,
   subplot_titles = ("Plot 1", "Plot 2", "Plot 3", "Plot 4"))

fig.add_trace(go.Scatter(x = [1, 2, 3], y = [4, 5, 6]),
   row = 1, col = 1)

fig.add_trace(go.Scatter(x = [20, 30, 40], y = [50, 60, 70]),
   row = 1, col = 2)

fig.add_trace(go.Scatter(x = [300, 400, 500], y = [600, 700, 800]),
   row = 2, col = 1)

fig.add_trace(go.Scatter(x = [4000, 5000, 6000], y = [7000, 8000, 9000]),
   row = 2, col = 2)

fig.update_layout(height = 500, width = 700,
   title_text = "Multiple Subplots with Titles")

fig.show()
from plotly.subplots
import make_subplots
import plotly.graph_objects as go

fig = make_subplots(rows = 1, cols = 2)

fig.add_trace(
   go.Scatter(
      x = [1, 2, 3],
      y = [4, 5, 6],
      mode = "markers+text",
      text = ["Text A", "Text B", "Text C"],
      textposition = "bottom center"
   ),
   row = 1, col = 1
)

fig.add_trace(
   go.Scatter(
      x = [20, 30, 40],
      y = [50, 60, 70],
      mode = "markers+text",
      text = ["Text D", "Text E", "Text F"],
      textposition = "bottom center"
   ),
   row = 1, col = 2
)

fig.update_layout(height = 600, width = 800, title_text = "Subplots with Annotations")

fig.show()
import plotly.graph_objects as go
from plotly.subplots
import make_subplots

fig = make_subplots(rows = 1, cols = 2, column_widths = [0.7, 0.3])

fig.add_trace(go.Scatter(x = [1, 2, 3], y = [4, 5, 6]),
   row = 1, col = 1)

fig.add_trace(go.Scatter(x = [20, 30, 40], y = [50, 60, 70]),
   row = 1, col = 2)

fig.show()


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