Question-: What is the pointer control, while reading the RAW data?
Answer: When SAS reads the data, you can specify using the pointer control from which column it should start reading for the next item.
Question-: What is the use “YEARCUTOFF� option in the SAS?
Answer: When SAS reads the date values and if data has two-digit year like 19, then SAS should consider it as 1919 or 2019. It can be decided using the “YEARCUTOFF� option value. Lets say you define below system option OPTION YEARCUTOFF=1950 In this case two-digit dates would be considered between 1950 to 2049. It means if two-digit year 19 would be considered 2019, and 71 would be consider as 1971. However, it is recommended in your RAW data if possible then have 4-digit year and avoid the confusion.
Question-: What all are the attributes for the SAS variables?
Answer: SAS variables can have following attributes - Name of the variable - Type of the variable - What is the length of the variable - Informat & format of the variable - Label for the variable - What is the position in an observation - Index type
Question-: What is the default type is considered, if you don’t define the type for a variable?
Answer: If you don’t define the type of the variable then it would be considered as integer and can hold upto 8 bytes. In the below statement all the 4 variables are considered as Numeric, because you are not providing any explicit type information. input Id Name fee location;