Unknown Expression

[Led_Zeppelin]

Here is the error that I get:

Output:
AttributeError                            Traceback (most recent call last)
Input In [20], in <cell line: 2>()
      1 # plotting cross validation result
----> 2 get_cv_plot(clf, 'param_C')

Input In [10], in get_cv_plot(validation, parameter)
      2 """
      3 Function to plot cross validation metric
      4 """
      5 # creating dataframe of cross validation results
----> 6 results = pd.DataFrame.from_dict(validation.cv_results_) 
      7 results = results.sort_values([parameter])
      9 # Get Mean score for each grid search for train data

AttributeError: 'GridSearchCV' object has no attribute 'cv_results_'

I am not sure what it means. It sure seems that cv_results_ is an attribute of GridSearchCV. The first post shows the code for get_cv_plot and this post of error prose shows the error. cv_results_ is in both of them. Perhaps an example would help. I still do not understand. As I said cv_results_ is in both code snippets. What is wrong? I do not see it.

I have seen examples of pd.DataFrame.from_dict online and there are no differences that I can see.

Respectfully,

LZ