Re: computing z-scores

2018-05-24 Thread David G. Johnston
On Thursday, May 24, 2018, David G. Johnston wrote: > On Thu, May 24, 2018 at 8:15 AM, Martin Mueller < > martinmuel...@northwestern.edu> wrote: > >> You construct a z-score for a set of values by subtracting the average >> from the value and dividing the result by the standard deviation. I know

Re: computing z-scores

2018-05-24 Thread David G. Johnston
On Thu, May 24, 2018 at 8:15 AM, Martin Mueller < martinmuel...@northwestern.edu> wrote: > You construct a z-score for a set of values by subtracting the average > from the value and dividing the result by the standard deviation. I know > how to do this in a two-step procedure. First, I compute th

computing z-scores

2018-05-24 Thread Martin Mueller
You construct a z-score for a set of values by subtracting the average from the value and dividing the result by the standard deviation. I know how to do this in a two-step procedure. First, I compute the average and standard deviation. In a second run I use the formula and apply it to each valu