sas array example ucla

show easy examples of usage leading to a final and more complicated process made efficient through the use of this statement. Arrays are SAS DATA step 

arrays of multiple codes representing primary and secondary diagnoses and can be The following programming examples show how SAS array processing.

determine column (variable) position in a SAS data set and to The values of array variables are automatically retained if you have ... For example

or array processing within a DATA step. This tutorial examines basic variations on both (except for notes in the SAS log about the.

Example 75.3: Logistic Regression Model with a Diffuse Prior . create ARRAY symbols to store all data set variables that are used in the program.

EXAMPLE OF AN INDEXED ARRAY. Going back to the example of reversing the CES-D items the SAS code that would be required to define an indexed.

PROC GLIMMIX extends the SAS mixed model tools in a number of ways. For example it. • models data from non-Gaussian distributions.

SCORING A MULTIPLE CHOICE TEST. Let's start out with the basics: how to score a multiple choice test using SAS software. For this example

The data used in all the examples in this paper consist of a selection of movies a hash object is similar to that of a SAS array in that the columns ...

help identify invalid character and numeric data values using. SAS software. A SAMPLE DATA SET. In order to demonstrate data cleaning techniques

Basic Array Example: Calculating Net Income This section presents a basic example that uses arrays This example assumes a revenue-and-expense data set (Rev_Exp) that contains 24 monthly variables: 12 variables for revenue (Rev1–Rev12) and 12 variables for expenses (Exp1–Exp12)

• An array-name identifies the group of variables in the array • The number-of-elements shows the number of elements in a one-dimensional array • The array-elements are the elements or fields that make up the array The array-name cannot be the name of a SAS variable used in that data step In other words it cannot be the name

SAS arrays are another way to temporarily group and refer to SAS variables A SAS array is not a new data structure the array name is not a variable and arrays do not define additional variables Rather a SAS array provides a different name to reference a group of variables

EXAMPLE OF AN INDEXED ARRAY Going back to the example of reversing the CES-D items the SAS code that would be required to define an indexed array containing the 4 CES-D items that need to be reversed is data cesd; set in cesd1; array aireverse {4} cesd4 cesd8 cesd12 cesd18 ; In defining this array we first specify the SAS keyword ARRAY with

Example of An Indexed ARRAY Going back to the example of reversing the CES-D items the SAS code that would be used to define an indexed array containing the 4 CES-D items that need to be reversed is: data cesd; set in cesd1; array aireverse {4} cesd4 cesd8 cesd12 cesd18;

ARRAY - is a SAS keyword that specifies that an array is being defined Arrayname - a valid SAS name that is not a variable name in the data set {n} - the index used to give the number of elements in the array ( A numeric constant/Numeric SAS expression /(*) [$] - used to specify if the elements in the array are