Answer Posted / nanda katepalli

PDV is the program Data Vector. It takes each observation at
a time and allocates the length given in the input
statement.The allocation of spaces is done in the
compliation phase and the variables goes in it at the
execution phase.
Example:Builder builds the house but it is used by the people.
It has 2 variables by default which are _n_ and _error_.
_n_ gives us the observation number.
_error_ if their is no error then it is 0 or else it shows 1
even though we have 'n' no.of errors.
And then it creates 'n' no.of variables specified in the
data statement.
Input buffer is only needed for non sas files to
read the raw data and store in it. Where as, sas files do
not need the input buffer.
Example: Converting an Excel file into a sas file i.e while
converting it needs some space for storage.

What are the applications primarily used by business analyst? : Sas-bi

1049

---

What is the use of function Proc summary?

1344

---

What is the differnce between SDTM 3.1.2 to 3.1.1 version

5116

---

What is slibref?

1329

---

What is the different between functions and PROCs that calculate the same simple descriptive statistics?

1846

---

What is the difference between %local and %global? : sas-macro

1234

---

For what purposes have you used sas macros? : sas-macro

1048

---

is data integration and etl programming is same? : Sas-di

1125

---

Why and when do you use proc sql?

1286

---

how would you create a data set with 1 observation and 30 variables from a data set with 30 observations and 1 variable? : Sas programming

1402

---

How sas treats the dsd delimiters?

1261

---

How will you use the WHO Drug Dictionary for Reporting Clinical Trials?

2394

---

what are the new features included in the new version of sas i.e., Sas 9.1.3? : Sas programming

1152

---

Explain substr function?

1163

---

In SAS explain which statement does not perform automatic conversions in comparisons?

1369

---