Machine learning assisted intraoperative assessment of brain tumor margins using HRMAS NMR spectroscopy
Fig 3
The SHAP Values (y-axis) for each ppm in the spectrum (x-axis) is shown for each sample (dots).
Dot color purple indicates a high feature value, and blue indicates a low value. A positive SHAP value indicates that feature was important to classify that sample as (i) tumor as opposed to control in Panel A; and as (ii) malignant as opposed to benign in Panel B. Conversely, a negative SHAP value indicates that feature was important to classify that sample as (i) control as opposed to tumor in Panel A; and as (ii) benign as opposed to malignant in Panel B.