A pandas bar plot visualizes a figure with too dense x-labels

11/26/2022

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Issue

I wanna visualize variables in too many dimensions (ex. 200 dimensions). Pandas renders the bar plot. However, the x-label of the plot is too dense; hard to read.

The bar plot with 200 dimensions. The x label is super hard to read.

Solution

Use xticks the argument of pandas plot.

The x label has numbers per 5 dimensions.

Example

import matplotlib
import pandas
import numpy

dim_vector = 200
y = numpy.random.normal(10, 1, size=(dim_vector))

ticks_per = 5
seq_xticks = [ind if ind % ticks_per == 0 else 0 for ind, __ in enumerate(y)]
pandas.DataFrame(y).plot.bar(xticks=seq_xticks, figsize=(15,5))

import matplotlib

import pandas

import numpy

dim_vector = 200

y = numpy.random.normal(10, 1, size=(dim_vector))

ticks_per = 5

seq_xticks = [ind if ind % ticks_per == 0 else 0 for ind, __ in enumerate(y)]

pandas.DataFrame(y).plot.bar(xticks=seq_xticks, figsize=(15,5))

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Pythonmatplotlib,Python

Posted by user