set key outside right center title "Outcomes" plot $HEATMAP matrix with image notitle, \ keyentry with boxes fc palette cb 0 title "no effect", \ keyentry with boxes fc palette cb 1 title "threshold", \ keyentry with boxes fc palette cb 3 title "typical range", \ keyentry with labels nopoint title "as reported in [12]", \ keyentry with boxes fc palette cb 5 title "strong effect"
竹野茂治@新潟工科大学