name 'lr_model' is not defined

This error message usually occurs when you try to use a variable or function that has not been defined in your code. To fix this error, you need to make sure that the variable or function is defined before it is used.

In your case, it seems like you are trying to use a variable called 'lr_model' but it has not been defined in your code. You need to define this variable before you can use it.

Here's an example of how you can define a logistic regression model in Python using scikit-learn:

from sklearn.linear_model import LogisticRegression

# Load your data here

# Define your logistic regression model
lr_model = LogisticRegression()

# Train your model here

# Use your model to make predictions here

Make sure to replace the commented sections with your own code for loading data, training the model, and making predictions.