使用R中的“密度”函数查找新数据点的概率密度

I am trying to find the best PDF of a continuous data that has unknown distribution, using the "density" function in R. Now, given a new data point, I want to find the probability density of this data point based on the kernel density estimator that I have from the "density" function result. How can I do that?I am trying to find the best PDF of a continuou