Hey there! Let's walk through each of your requirements clearly, since you're just starting out with Python and Seaborn. Here's how to get your lmplot looking exactly how you want:

1. Correctly Creating the lmplot #

First, your initial code is close, but Seaborn recommends explicitly using the data parameter to pass your DataFrame, with x, y, and hue as strings matching your column names. This makes the code more readable and avoids potential errors:

# Replace "x_col", "y_col", "z_col" with your actual column names in df
g = sns.lmplot(data=df, x="x_col", y="y_col", hue="z_col")

2. Setting the "whitegrid" Style #

To apply the whitegrid style, you just need to call sns.set_style() before creating your plot. This sets a global style for all subsequent Seaborn plots:

import seaborn as sns

# Set the style first
sns.set_style("whitegrid")

# Then create your plot
g = sns.lmplot(data=df, x="x_col", y="y_col", hue="z_col")

3. Using "Times New Roman" Font #

Seaborn builds on Matplotlib, so we can set the font either through Seaborn's own set() function or directly via Matplotlib's rcParams. Both methods work, but the Seaborn way is simpler for beginners:

Option 1: Seaborn's set() function #

sns.set(font="Times New Roman")

Option 2: Matplotlib rcParams (for more control) #

If you want to customize font settings further (like font size), you can use Matplotlib directly:

import matplotlib.pyplot as plt

plt.rcParams["font.family"] = "Times New Roman"
# Optional: Adjust font size if needed
plt.rcParams["font.size"] = 12

Full Working Example #

Putting it all together, your code would look like this:

import seaborn as sns
import matplotlib.pyplot as plt

# Configure style and font first
sns.set_style("whitegrid")
sns.set(font="Times New Roman")

# Create the lmplot
g = sns.lmplot(data=df, x="x_col", y="y_col", hue="z_col")

# Display the plot
plt.show()

A quick note: Make sure "Times New Roman" is installed on your system (it's standard on Windows/Mac, but Linux users may need to install it first). If you run into font issues, you can check available fonts with plt.font_manager.findSystemFonts().

内容的提问来源于stack exchange，提问作者jjameson