Hello everyone,  Please I need an urgent answer! I have a table from an experiment in which, we tested the effect of the season ( winter: conducted in November and December) and summer: conducted in July and August) on the milk production of two groups of animals reared in the same conditions. Each group is randomly assigned according to season winter (30 animals) and summer(30 animals). Both groups have the same characteristics of animals(age, weight..), so can only test the effect of season. The results are presented in the table below : My question is which one of the two suggested models is better describing the result; 1/ Mixed model for repeated measurements where y (milk yield)= µ+Cow+Season+samling time+Season*sampling time+error; 2/One-way Anova where y= µ+season+error Please, I'm counting on the SAS community!    winter (Nov-Dec) summer (July-Augst) SEM P Milk yield         Fat         protein         ... View more

Hello everyone, My data contains milk production parameters as the variables are: Milk, Fat, and Protein in the row of the excel file and the breed of the animal (1, 2) and the month (1,2,3,4 ) in the column. so, for each month and each breed, we have the milk production parameters (milk, fat, and protein). I want to see the effect of breed, month, and their interaction on these parameters (milk, fat, and protein). I wonder about the glm procedure: proc glm ; model Milk Fat Protein= breed month breed * month ; but I was asked to do the two-way ANOVA analysis and I wrote this code: proc univariate data=milk ; var Milk Fat Protein ; run; Is the code for the two-way ANOVA correct to see the effect of the breed the month and their interaction? What is the difference between the proc glm and univariate if they can do the same test? Thank you! and I am sorry for my lack of knowledge. ... View more

Hello, everyone! I have variables in my CSV data, in date format like the calving date of 17/06/2020. I do know how SAS can read all the CSV data. I used this code to enter my data filename BSMB'C:\Users\Ebtissem\Desktop\BSMB\ebtissem.csv'; data farm; infile BSMB firstobs=2 dlm=';'; input Period THIPeriod Month THIIMonth ID breed Parity DIMMilk TOTALMilk FAT FM PROTEIN PM SC SCS Dryingperiod Gestationperiod Nins LastI Calvingdate previouscalving  CCinterval ICIf IIIplus trpi Icoit Concprate diestrus metestrus estrus proestrus  RT HR RR PS; run; PS: I write in red color the variables containing date format. and here is the first two rows'screenshot of some observations in CSV data. How can I input the variables in the write format  and not obtain invalid data. Thank you!       ... View more