<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />The non-specific issue.
I would like to display a vertical histogram with 28 different levels. The problem is that not all 28 levels may be represented in the actual data set. But I still want the histogram to show me ALL 28 levels. I've modified the data sheet info using value ordering/list check/ you name it (basically all of them.) I cannot get the vacant levels to show up on the histogram. So my question: Is it possible to do this?
Specific application.
I work for a spine company that specializes in treating scoliosis. There are 28 locations in which the surgeon can place the implants. We have a very large clinical database with all of this information in it. I have discovered that the vertical histogram provides a great graphical representation of how and where they treat these patients. I can place the skull at the top of the histogram and the pelvis at the bottom. I can overlay adverse events, neurological data, original diagnosis, etc with only a few mouse clicks. But because certain levels are missing, you have to stare at the histogram and interpret exactly where you are 'in the spine'. If i can just plot all 28 levels, everything becomes obvious.
Thanks
John S
One technique is to make sure all 28 levels are in the data set by adding dummy rows and use a frequency variable to give the dummy rows a frequency of 0 and all other rows a frequency of 1.
