Optimization for the region- and variable-specific adjustments to the Lamb Weather Type Classification

These python scripts allow to determine the region-and variable-specific threshold for the weak-strong separation in the Lamb Weather Type classification. Included are the function that includes the optimization metric (Function_CHI), the function that determines the optimization metric for a given threshold (Function_Determining_ws_separation) and the script to perform the optimization (Optimizing_ws_separation). To determine the threshold for the weak-strong separation, only "Optimizing_ws_separation" should be run.