How to insert string into plotting function in python

Question

I have the following code that creates a histogram from my data using seaborn in python:

ax=sns.histplot(data=data, y=value, x=category)
            ax.figure.set_size_inches(7,len(10))
            plt.title('Title'.format(field))
            plt.show()

Now I want to work on creating a for loop that creates a different type of plot for my data from a list of data types. Specifically, for my data, I want to create a histogram, a boxplot, and violin plot from my data using seaborn.

And so, I have this list of seaborn plot types:

plot_type_list = ['histplot', 'boxplot', 'violinplot]

And so I want to loop through this list of plot types and try each plot type for my data. I try the following:

for plot_type in plot_type_list:
     ax=sns.plot_type(data=data, y=value, x=category)
          ax.figure.set_size_inches(7,len(10))
          plt.title('Title'.format(field))
          plt.show()

My reasoning here was that the "plot_type" in sns.plot_type() would be substituted by each string in my plot_type_list, thus creating each type of plot from my data. However, this code attempt returns the following error:

AttributeError: module 'seaborn' has no attribute 'plot_type_list'

I see that python is not inserting my plot_type string into the seaborn plotting function as I intended, rather just preserving "plot_type" as "plot_type", rather than "histplot", "boxplot", and "violinplot". How can I fix my code so that the seaborn plotting function has each plot type inserted, such that for through my for loop, I can create a histplot, boxplot, and violinplot?

where is your data? Please attach your data along with a post to get a better solution by community. — NIKUNJ KOTHIYA
– NIKUNJ KOTHIYA, Commented Feb 8, 2023 at 6:20
Try with replace ax=sns.plot_type(data=data, y=value, x=category) line with ax = eval("sns." + plot_type)(data=data, y=value, x=category) — NIKUNJ KOTHIYA
– NIKUNJ KOTHIYA, Commented Feb 8, 2023 at 6:22
If it useful then you can mark as answer and upvote for other users who have similar problem in future. Cheers! — NIKUNJ KOTHIYA
– NIKUNJ KOTHIYA, Commented Feb 8, 2023 at 6:34
Maybe for kind in ['hist','violin','box']: with sns.catplot(data=data, y=value, x=category, kind=kind, height=7, aspect=1.5) works for you? See seaborn catplot. — JohanC
– JohanC, Commented Feb 8, 2023 at 7:25

NIKUNJ KOTHIYA · Accepted Answer · 2023-02-08 06:26:23Z

1

You can use Python's built-in eval() function.

You need to replace your line of code :

ax=sns.plot_type(data=data, y=value, x=category)

with

ax = eval("sns." + plot_type)(data=data, y=value, x=category)

answered Feb 8, 2023 at 6:26

NIKUNJ KOTHIYA

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