9.2.Histogram Method直方图方法 A very simple method is to partition the space into a number of equally-sized cells(bins) and compute a histogram. Figure 1:Histogram in one dimension. Estimate of the density at a point x becomes k p(x)= WN亚 where N is the total number of samples,k is the number of samples in the cell that includes x,and I is the volume of that cell. 9/279.2. Histogram Method 直方图方法 ▶ A very simple method is to partition the space into a number of equally-sized cells (bins) and compute a histogram. ▶ Estimate of the density at a point x becomes p(x) = k NV where N is the total number of samples, k is the number of samples in the cell that includes x, and V is the volume of that cell. 9 / 27