DBSCAN图 - plt.plot（）中传递的颜色值抛出ValueError

I am using DBSCAN to perform clustering on a dataset. I think it is because of the color argument passed to the markerfacecolor in plt.plot() which is not a single value. Please let me know if am wrong here. My features are latitude, longitude,speed_mph,speedlimit_mph,vehicle_id,driver_id.I am using DBSCAN to perform clustering on a da