Hello Friends, I have question regarding the way SAS Stores the Numeric Values. I understood that SAS will store the numeric values as Floating point numbers. If the length of the variable is 4 bytes , SAS can store any value less than 2,097,152 correctly without affecting its precision. I didnt understood why SAS is storing ? instead of 0.1 in the X Variable(Refer the Program). Please, I request you to clarify my doubt. Following is the program , to understand my question clearly. data test; length x 4; X=1/10; Y=1/10; run; data _null_; set test; put X=; put Y=; run; Log Output: x=0.0999999642 y=0.1 Thank you, John ... View more

Hi Everyone, Can anyone please explain the Efficiency Trade-offs in SAS. I am having hard time understanding the above concepts.Following are two questions: 1)How decrease in the size of a SAS Dataset can result in an increase in CPU Usage? 2)How decrease in the number of I/O operations comes at the expense of Increased memory usage? Thank you, John ... View more

Can anybody please tell me the use of Equals options in the proc sort procedure? General Form of Proc sort equals option: Proc sort data=datasetname nodupkey equals; by variablename; run; Please help me. Thank you, John ... View more

how can we get the first and last observations in a dataset using Proc SQl? Thank you, John ... View more

Hi Guys, i/p date is  05sep2005;  I want to produce o/p:  05sep2005:00:00:00 ; what is the code? Thanks in advance, John ... View more

Hi Guys, I have a null dataset with 20 variables. i want to copy the variables which contain name like a or k in another dataset.how can we create the dataset? Thank you, John ... View more

Hi Everyone, I have a null dataset with 10 variables; i want to print only name of the varibales in log window and also output window.how can we do this one? Thanks, John ... View more