I have variable size having more than 1000 values. I want to create a group of (low, medium, high) on the basis of size values. so whole size will be divided into 3 groups. top 1 are high then medium and low. in this example data it is shown that there are 9 values. Top3 are in high group, having values in the middle level 3 values are in medium group then lowest 3 are in low group. So my intention is to create this group variable.   Size group 10    low 20    low 50    low 50    medium 70   medium 80   Medium 95   high 99   high 99   high ... View more