variable; existing data

  1. T

    Question about a strange type of variable in Cox regression table

    I have a question about this Cox regression analyse table; If you take a look at the valuation of variables in this table, you will see that some are coded binair (0 or 1). But for some reason the author of this table used for 'tooth type' a valuation from 1 to 6. So my questions are; Is...
  2. Z

    creating new variable with existing data

    Hello, I just started using Stata, but I am wondering if it possible to create a new variable with existing data. I have monthly data from a broker for several years. I imported one month to get to know Stata better before I go on. I started to create a new excelfile with only the variables I...