Relative expression plot in python

relative_expression.py

import pandas as pd
import seaborn as sns
import matplotlib.pyplot as plt

df = pd.read_excel("/Users/halflearned/Downloads/qPCR.xlsx")

# Rename expression column to something sensible
df = df.rename(columns={"2^(-ΔΔCq)": "expression"})

# Create the column that will be our horizontal axis
df["group"] = df["Sample"].str.split("-", expand=True)[0]
df["group"] = df["group"].str.replace("+12", ".5", regex=False)

# Plot plot plot
with sns.plotting_context("paper", font_scale=1.2):
    ax = sns.pointplot(
        data=df,
        hue="Type",
        x="group",
        y="expression",
        capsize=.1,  # size of the horizontal thing at the extremity of the error bars
        markers=".",  
        palette=["k", "C0", "C1"],
    )

    ax.set_ylabel("Relative expression (NR2F2)")
    ax.set_xlabel("Time points")
    
    ax.legend(frameon=False)
    sns.despine()
    
    ax.get_figure().savefig("/Users/halflearned/Desktop/relative_expression.jpeg", dpi=600)