I need to create a histogram from multiple variables. For example, in the Chart Builder, under Variables I have multiple scale variable, in this case on yearly base. That is variables named per year, i.e. 2014, 2013, 2012, etc. Once I place the histogram option into the chart preview i can select from the left box, from the variables, only one scale variable, in this case variable labeled: 2014. When I select multiple years, that is variables, I cannot moved the multiple variable selection to the histogram X-Axis, only one variable, i.e. labeled it as 2014. I really would need to create a histogram from multiple variables that I earlier labeled as 2014, 2013, 2013, ...., 2001. So the histogram output would show vertical Y-Axis as frequencies and the horizontal axis, the X-Axis, the labeled variables of 2014, 2013, 2013, ...., 2001.
I would truly appreciate help on this.