I want to do Discriminant Analysis by using SAS. But there is something wrong in my data set after I transfered the character data into numeric data.   At first, the dataset were character, so my first step was to tranform it into numeric data, by using following data: 【 data newalcohol; set alcohol(rename=(Meoh=old1 Acet=old2 Bu1=old3 Mepr=old4 Acal=old5 Lnpr01=old6)); Meoh = input (old1,best5.); Acet= input (old2,best5.); Bu1 = input (old3,best5.); Mepr = input (old4,best5.); Acal = input (old5,best5.); Lnpr01 = input (old,best5.); drop old1 old2 old3 old4 old5 old6; run; 】   And then, I used the following data to do the test:   【title'Discriminant Analysis of Alcohol'; title2'Using Discriminant Function'; proc discrim data = newalcohol outstat=newalcohol wcov pcov method = normal pool = test distance anova manova listerr crosslisterr; class type; var Meoh Acet Bu1 Mepr Acal Lnpr01; run;】   However, the warnings showed up here:   【 WARNING: 77 observations in DATA= data set or BY group will not be included in the analysis due to missing values. ERROR: At least 2 complete observations are required in DATA= data set or BY group. NOTE: The SAS System stopped processing this step because of errors. NOTE: There were 77 observations read from the data set WORK.NEWALCOHOL. WARNING: The data set WORK.NEWALCOHOL may be incomplete. When this step was stopped there were 0 observations and 9 variables. WARNING: Data set WORK.NEWALCOHOL was not replaced because this step was stopped. 】 I believe there must be something wrong within my dataset, but I didn't know how to fix it.   Can anyone help me? Thank you. ... View more