why is df used for compact display what is the purpose of the display on the letter df df when does a comma display occur what is the df in lsmean what is compact letter display what is compact letter display what is the purpose of a grouping bar in statistics when a mean is not estimable why does it have to be shown as the mean in compact letter display? why do we use compact letters in statistical analysis what do you use to show a difference in an excel file which cells are used when estimating the means what means are the smallest in df how do we show two different meanings to a non estimable case what is the purpose of compact letter display what is lsmean lower what should be used for a graph to display mean what is the difference between an average and an average on a compact letter display why is lsmean se df not estimable what is the difference between df and se in a graph when a number is non estimable, how do you show the difference