Hello all, My name is Baiju Joseph and I am a student. I encountered a problem while doing a project, which I would like to share with you all for a variable Base in a dataset following was the pattern: Base 9 6 6 . . . . . . 6 6 3 3 . . . . 7 9 3 Now for all the null values I would like to put the preceding non zero value in it till I reach the next non zero value in the variable and so on and so forth, until there are no null values in the variable. for example Observations 4-9 are null, and hence I would like to fill in the value of the preceding non zero observation (ie Obs 3 with value 6) in all the observations till I reach Obs 10, which is a non zero observation. what can be done to achieve this ?? Kindly reply back with your answers Thank you all !!! ... View more