How do I arrange data in SAS?

How do I arrange data in SAS?

  1. If you list just one variable, then SAS will sort the observations in the dataset based on ascending values of that variable.
  2. You can sort in descending order by placing the keyword DESCENDING before the variable name that you want the dataset to be sorted on.
  3. You can sort by as many variables as are in the dataset.

Can you sort in data step SAS?

No, you can’t sort your data in a Data Step. With a Data Step, you can only create new datasets and new variables, filter observations, and select columns. You need the PROC SORT procedure to sort your data.

How does proc sort work in SAS?

The SORT procedure orders SAS data set observations by the values of one or more character or numeric variables. The SORT procedure either replaces the original data set or creates a new data set. PROC SORT produces only an output data set. For more information, see Procedure Output.

How do I sort in SQL SAS?

You can specify a sort order for each column in the ORDER BY clause. libname sql ‘SAS-library’; proc sql outobs=12; title ‘World Topographical Features’; select Name, Type from sql. features order by Type desc, Name; Note: The ASC keyword is optional because the PROC SQL default sort order is ascending.

What is Proc SQL in SAS?

PROC SQL is a powerful Base SAS Procedure that combines the functionality of DATA and PROC steps into a single step. PROC SQL can sort, summarize, subset, join (merge), and concatenate datasets, create new variables, and print the results or create a new table or view all in one step!

How do I sort in SQL proc?

How do I compare two datasets in SAS?

Here’s how to check if two datasets in SAS are the same:

  1. Start the comparison procedure with the PROC COMPARE statement.
  2. Use the BASE=-option to specify the name of the first dataset.
  3. Use the COMPARE=-option to specify the name of the second dataset.
  4. Finish and execute the procedure with the RUN statement.

How do you compare observations in SAS?

Program Description

  • Declare the PROCLIB SAS library.
  • Set the SAS system options.
  • Sort the data sets by the ID variable.
  • Specify the data sets to compare.
  • Create the Result output data set and include all unequal observations and their differences.
  • Specify the ID variable.

How does Sas merge datasets?

Multiple SAS data sets can be merged based on a specific common variable to give a single data set. This is done using the MERGE statement and BY statement . The total number of observations in the merged data set is often less than the sum of the number of observations in the original data sets.

Where clause SAS?

The WHERE clause in SAS/IML. In SAS procedures, the WHERE clause is a useful way to filter observations so that the procedure receives only a subset of the data to analyze. The IML procedure supports the WHERE clause in two separate statements.

What is Sas merge?

SAS Merging combines observations from two or more SAS datasets based on the values of specified common variables (SAS merges more than 2 Datasets). ii. SAS Merging creates a new data set (the merged dataset). iii. It is done in a data step with the statements. MERGE is used to name the input data sets.