AttributeError: 'LinearRegression' object has no attribute 'tvalues'

This error occurs because the `LinearRegression` object in Python's scikit-learn library does not have a `tvalues` attribute. The `tvalues` attribute is commonly used in statistical analysis to calculate the t-statistic for a given variable or coefficient in a linear regression model.

To resolve this error, you might need to use a different library or method for calculating the t-values in your linear regression analysis. Alternatively, you could try to compute the t-values manually using the coefficients and standard errors from the `LinearRegression` model.