These names cannot contain a blank or any special character except the underscore. Finally names cannot be SAS reserved words. Shorter way around - Example #1.
Basic Array Example: Calculating Net Income . arrays are typically referred to as either character arrays or numeric arrays.
languages are that SAS array elements don't need to be contiguous the same length
In this example we will define a character array to concatenate the two-character State or Province code from the Location variable to the end of the Product
SAS arrays must contain either numeric or character data not a mixture of both. TEMPORARY ARRAY DEFINITION. Temporary arrays provide convenient tabular data
An example of the data is given in Figure 1. Figure 1: Raw CES-D data. Hands-on Workshops. SAS Global Forum 2010
???/???/???? characteristic that identifies a variable's value as a character string an integer
analysis the raw data needs to be manipulated in some way; for example new variables used to specify if the all elements in the array are character.
The examples are intentionally simple using SAS data sets with only a few ob- servations and a few variables
Arrays are SAS data step statements that allow iterative processing of The following example loads character variables to the array and then uses a do ...
To use arrays in SAS code first make sure that you understand the basic syntax of the SAS ARRAY statement This section describes the ARRAY statement and provides a number of examples to illustrate its use
When an array is defined with the ARRAY statement SAS creates an array reference The array reference is in the following form: array-name{n} The value of n will be the element’s position within the array For example in the temperature array defined above the temperature for 1:00 PM is in the variable TEMP13
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;
Arrays are SAS data step statements that allow clever programmers to do a great deal of work with little code Arrays process identified variables as a group rather than individually therefore saving both machine and programmer time This paper should help lower the attendee's anxiety level when using arrays
the array ( A numeric constant/Numeric SAS expression /(*) [$] - used to specify if the elements in the array are character variables the default type is numeric [length] - used to define the length of new variables being created in the array optional array_elements - a list of variables of the same type (all numeric