Question: How Do I Add A New Variable To An Existing DataSet In SAS?

What is a SAS variable?

A SAS dataset consists of columns of variables and rows of observations.

Variables correspond to characteristics of the data that are documented for all (or most) of the observations..

How do I add observations in SAS DataSet?

4 Answers. Write a macro which will read first DataSet and when _n_=2 it will multiply x and y with 10. After that create another DataSet which will hold only your muliplied value let say x’=10x and y’=10y . Pass both DataSet in another macro which will set the original datset and newly created dataset.

How do you round a variable in SAS?

ROUND is the function name; argument is the numeric value or variable you want to have rounded; and rounding-unit is the unit that you want to result to be rounded to (e.g. 10, 100, 0.1, 0.01, 5, etc.) For example, ROUND(34.58, 0.1) tells SAS to round the number 34.58 to the nearest tenth. SAS will return 34.6.

How do you make a variable numeric in SAS?

Convert character to numeric. To convert character values to numeric values, use the INPUT function. new_variable = input(original_variable, informat.); The informat tells SAS how to interpret the data in the original character variable.

What does set do in SAS?

The function of the SET statement is to process existing SAS data sets as input for a DATA step. With no options specified, the SAS System sequentially reads each observation in the named data sets, one observation at a time, until there are no further observations to process.

How do I use proc append in SAS?

PROC APPEND BASE=SAS-data-set DATA=SAS-data-set ; RUN; PROC APPEND adds the observations from one SAS data set to the end of another SAS data set. BASE= names the data set to which the observations are added, and DATA= names the data set containing observations that are added to the base data set.

How do you add a new variable to a DataSet in SAS?

The basic method of adding information to a SAS data set is to create a new variable in a DATA step with an assignment statement. An assignment statement has the form: variable=expression. The variable receives the new information; the expression creates the new information.

How do I combine two datasets in SAS?

If the data sets that you name in the SET statement contain variables with the same names and types, then you can concatenate the data sets without modification. However, if variable types differ, then you must modify one or more data sets before concatenating them.

How do I concatenate two columns in SAS?

Concatenate two Columns in SAS – With Single Space Concatenate two columns in SAS with single space using CATX() Function. CATX() Function takes column names along with space as argument.

How do I assign a variable in SAS?

Ways to Create VariablesOverview.Create a New Variable Using the LENGTH Statement.Create a New Variable Using the ATTRIB Statement.Create a New Variable Using an Assignment Statement.Reading Data with the INPUT Statement in a DATA Step. … Create a New Variable Using the FORMAT or INFORMAT Statements.Using the IN= Data Set Option.

How do you join tables in SAS?

Joining Tables ManuallyIf the Tables and Joins window is not already open, click Join Tables in the Query Builder window. … Drag the column name from the table that you want to join to the corresponding column in the table to which you want to join it. … Select the join type that you want to use.More items…•

How do I recode data in SAS?

SAS does not have a recode command, so we will use a series of if-then/else commands in a data step to do the job. This data step creates a temporary data file called auto2.

How do I add a variable to a DataSet in R?

To create a new variable or to transform an old variable into a new one, usually, is a simple task in R. The common function to use is newvariable <- oldvariable . Variables are always added horizontally in a data frame.

What is Proc sort in SAS?

PROC SORT replaces the original data set with a data set that is sorted by employee identification number. The following log shows the results from running this PROC SORT step. Observations Sorted by the Values of One Variable shows the results of the PROC PRINT step.

How do you transpose in SAS?

The general format of PROC TRANSPOSE is: PROC TRANSPOSE DATA=Dataset-name OUT=New-dataset-name; BY variable(s); COPY variable(s); ID variable; VAR variable(s); RUN; In the SAS code above: The PROC TRANSPOSE statement tells SAS to execute the transpose procedure on an existing dataset called Dataset-name .