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python heatmap

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Harry19s answered on February 12, 2022 Popularity 10/10 Helpfulness 2/10

answer python heatmap

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Plotly
https://youtu.be/RgRwsKjkJnU

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Contributed on Jun 14 2022

Harry19s

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import seaborn as sns
f,ax = plt.subplots(figsize=(20, 20))
sns.heatmap(df.corr(), annot = True, fmt= '.2f')

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Contributed on Feb 12 2022

Sleepy Scarab

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heatmap in python

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correlation=df.corr()
sns.heatmap(correlation,cbar=True,square=True,fmt='.1f',annot=True,annot_kws={'size':8},cmap="Blues")

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Contributed on Jun 13 2022

Mohanbabu Sakthivelu

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python image heatmap

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# Does this work for you?

# was gonna use numpy
import numpy as np

# Anyways, defining the function
def heatmap(data, row_labels, col_labels, ax=None,
            cbar_kw={}, cbarlabel="", **kwargs):
    
    # Create a figure if we do not have one
    if ax is None:
        fig, ax = plt.subplots()
    
    # Create a heatmap
    im = ax.imshow(data, **kwargs)
    
    # Create colorbar
    cbar = ax.figure.colorbar(im, ax=ax, **cbar_kw)
    cbar.ax.set_ylabel(cbarlabel, rotation=-90, va="bottom")
    
    # We want to show all ticks
    ax.set_xticks(np.arange(len(col_labels)))
    ax.set_yticks(np.arange(len(row_labels)))
    # We want to label ticks with the respective list entries
    ax.set_xticklabels(col_labels)
    ax.set_yticklabels(row_labels)
    
    # Let the horizontal axes labeling appear on top
    ax.tick_params(top=True, bottom=False,
                   labeltop=True, labelbottom=False)
    
    # Rotate the tick labels and set their alignment.
    plt.setp(ax.get_xticklabels(), rotation=-30, ha="right", rotation_mode="anchor")
    
    # Turn spines off and create white grid.
    for edge, spine in ax.spines.items():
        spine.set_visible(False)
    ax.set_xticks(np.arange(data.shape[1]+1)-.5, minor=True)
    ax.set_yticks(np.arange(data.shape[0]+1)-.5, minor=True)
    ax.grid(which="minor", color="w", linestyle='-', linewidth=1)
    ax.tick_params(which="minor", bottom=False, left=False)
    
    return im, cbar # return the image and colorbar

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Contributed on Jun 24 2022

Code Crusader

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python heatmap

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