Found 997 Articles for Matplotlib

How to change the attributes of a networkx / matplotlib graph drawing?

Rishikesh Kumar Rishi
Updated on 02-Feb-2022 11:56:11
To change the attributes of a netwrokx/matplotlib graph drawing, we can take the following steps −StepsSet the figure size and adjust the padding between and around the subplots.Initialize a graph with edges, name, or graph attributes.Add the graph's attributes. Add an edge between u and v.Get the edge attributes from the graph.Position the nodes with circles.Draw the graph G with Matplotlib.To display the figure, use show() method.Exampleimport matplotlib.pyplot as plt import networkx as nx plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True G = nx.Graph() G.add_edge(0, 1, color='r', weight=2) G.add_edge(1, 2, color='g', weight=4) G.add_edge(2, 3, color='b', weight=6) G.add_edge(3, 4, ... Read More

How to fill an area within a polygon in Python using matplotlib?

Rishikesh Kumar Rishi
Updated on 02-Feb-2022 11:47:09
To fill an area within a polygon in Python using matplotlib, we can take the following steps −StepsSet the figure size and adjust the padding between and around the subplots.Create a figure and a set of subplots.Get an instance of a polygon.Get the generic collection of patches with iterable polygons.Add a 'collection' to the axes' collections; return the collection.To display the figure, use show() method.Exampleimport matplotlib.pyplot as plt from matplotlib.collections import PatchCollection from matplotlib.patches import Polygon import numpy as np plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True fig, ax = plt.subplots(1) polygon = Polygon(np.random.rand(6, 2), closed=True, alpha=1) ... Read More

How to get data labels on a Seaborn pointplot?

Rishikesh Kumar Rishi
Updated on 02-Feb-2022 11:37:50
To get data labels on a Seaborn pointplot, we can take the following steps −StepsSet the figure size and adjust the padding between and around the subplots.Create a dataframe, df, of two-dimensional, size-mutable, potentially heterogeneous tabular data.Create a pointplot.Get the axes patches and label; annotate with respective labels.To display the figure, use show() method.Examplefrom matplotlib import pyplot as plt import pandas as pd import seaborn as sns plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True df = pd.DataFrame({'a': [1, 3, 1, 2, 3, 1]}) ax = sns.pointplot(df["a"],    order=df["a"].value_counts().index) for p, label in zip(ax.patches, df["a"].value_counts().index):    ax.annotate(label, ... Read More

How to draw a precision-recall curve with interpolation in Python Matplotlib?

Rishikesh Kumar Rishi
Updated on 02-Feb-2022 11:33:00
To draw a precision-recall curve with interpolation in Python, we can take the following steps −StepsSet the figure size and adjust the padding between and around the subplots.Create r, p and duplicate recall, i data points using numpy.Create a figure and a set of subplots.Plot the recall matrix in the range of r.shape.Plot the r and dup_r data points using plot() method.To display the figure, use show() method.Exampleimport numpy as np import matplotlib.pyplot as plt plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True r = np.linspace(0.0, 1.0, num=10) p = np.random.rand(10) * (1. - r) dup_p = p.copy() i ... Read More

How to plot additional points on the top of a scatter plot in Matplotlib?

Rishikesh Kumar Rishi
Updated on 02-Feb-2022 11:29:47
To plot additional points on the top of a scatter plot in matplotlib, we can take the following steps −StepsSet the figure size and adjust the padding between and around the subplots.Make a list of x and y data points.Create a scatter plot with x and y data points.Plot the additional points with marker='*'To display the figure, use show() method.Examplefrom matplotlib import pyplot as plt # Set the figure size plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True # List of data points x = [1, 2, 6, 4] y = [1, 5, 2, 3] # Scatter plot ... Read More

Transparent error bars without affecting the markers in Matplotlib

Rishikesh Kumar Rishi
Updated on 02-Feb-2022 11:26:04
To make transparent error bars without affecting markers in matplotlib, we can take the following steps −StepsSet the figure size and adjust the padding between and around the subplots.Make lists x, y and z for data.Initialize a variable error_bar_width=5Plot y versus x as lines and/or markers with attached errorbars.Set the alpha value of bars and caps.To display the figure, use show() method.Examplefrom matplotlib import pyplot as plt plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True x = [1, 3, 5, 7] y = [1, 3, 5, 7] z = [4, 5, 1, 4] error_bar_width = 5 markers, ... Read More

How to set legend marker size and alpha in Matplotlib?

Rishikesh Kumar Rishi
Updated on 02-Feb-2022 11:21:30
To set legend marker size and alpha in matplotlib, we can take the following steps −StepsSet the figure size and adjust the padding between and around the subplots.Initialize a variable N to store the number of sample data.Plot the x and y data points with marker="*".Place a legend on the figure.Set the marker size and alpha value of the marker.To display the figure, use show() method.Exampleimport matplotlib.pyplot as plt import numpy as np plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True N = 10 x = np.random.rand(N) y = np.random.rand(N) line, = plt.plot(x, y, marker='*', markersize=20, markeredgecolor='black', ... Read More

Showing points coordinate in a plot in Python Matplotlib

Rishikesh Kumar Rishi
Updated on 02-Feb-2022 11:17:43
To show points coordinate in a plot in Python, we can take the following steps −StepsSet the figure size and adjust the padding between and around the subplots.Initilize a variable N and create x and y data points using numpy.Zip the x and y data points; iterate them and place coordinates.To display the figure, use show() method.Exampleimport matplotlib.pyplot as plt import numpy as np plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True N = 5 x = np.random.rand(N) y = np.random.rand(N) plt.plot(x, y, 'r*') for xy in zip(x, y):    plt.annotate('(%.2f, %.2f)' % xy, xy=xy) ... Read More

How to unset 'sharex' or 'sharey' from two axes in Matplotlib?

Rishikesh Kumar Rishi
Updated on 02-Feb-2022 11:13:03
To inset sharex and sharey from two axes in matplotlib, we can use 'none', i.e., False or 'none'. Each subplot X- or Y-axis will be independent.StepsSet the figure size and adjust the padding between and around the subplots.Initialize two variables rows and cols.Create a figure and a set of subplots.Iterate the axes where rows=2 and cols=4.Plot the random data on the axis.To display the figure, use show() method.Exampleimport matplotlib.pyplot as plt import numpy as np plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True rows = 2 cols = 4 fig, axes = plt.subplots(rows, cols, sharex='none', sharey='none', squeeze=False) ... Read More

How to obtain 3D colored surface via Python?

Rishikesh Kumar Rishi
Updated on 02-Feb-2022 10:55:15
To obtain 3D colored surface via Python, we can take the following steps −StepsSet the figure size and adjust the padding between and around the subplots.Create x and y data points using numpy.Get 3D data, i.e., z.Create a new figure or activate an existing figure.Get the 3D axes.Create a surface plot.To display the figure, use show() method.Exampleimport numpy as np import matplotlib.pyplot as plt plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True x = np.linspace(-3, 3, 100) y = np.cos(x) x, y = np.meshgrid(x, y) z = x ** 2 + y ** 2 - 2 ... Read More
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