Influential points

Influential points are data observations that have a disproportionate impact on the results of a statistical analysis or model. In other words, they are data points that, if removed or altered, could significantly change the conclusions or the estimated relationships within the data. Identifying influential points helps ensure the analysis is accurate and reliable, as these points may indicate outliers, errors, or special cases that can distort the overall findings. Recognizing and examining influential points is essential for building trustworthy models and understanding the data better.