The following statements are available in the DATASOURCE procedure:
PROC DATASOURCE options;
KEEP variable-list;
DROP variable-list;
KEEPEVENT variable-list;
DROPEVENT variable-list;
WHERE where-expression;
RANGE FROM from TO to;
ATTRIBUTE variable-list attribute-list …;
FORMAT variable-list format …;
LABEL variable="label" …;
LENGTH variable-list length …;
RENAME old-name=new-name …;
The PROC DATASOURCE statement is required. All the rest of the statements are optional.
The DATASOURCE procedure uses two kinds of statements, subsetting statements and attribute statements. Subsetting statements provide selection of time series data over selected time periods and cross sections from the input data file. Attribute statements control the attributes of the variables in the output SAS data set.
The subsetting statements are the KEEP, DROP, KEEPEVENT, and DROPEVENT statements (which select output variables); the RANGE statement (which selects time ranges); and the WHERE statement (which selects cross sections). The attribute statements are the ATTRIBUTE, FORMAT, LABEL, LENGTH, and RENAME statements.
The statements and options used by PROC DATASOURCE are summarized in Table 3. The rest of this section provides detailed syntax information about each of these statements, beginning with the PROC DATASOURCE statement. The remaining statements are described in alphabetical order.
Table 3: Functional Summary
| Option | Description |
|---|---|
| Input Data File Options | |
| FILETYPE= | Type of input data file to read |
| INFILE= | Filerefs of the input data |
| LRECL= | LRECLs of the input data |
| RECFM= | RECFMs of the input data |
| ASCII | Character set of the incoming data |
| EBCDIC | Character set of the incoming data |
| Output Data Set Options | |
| OUT= | Write the extracted time series data |
| OUTALL= | Information on time series and cross sections |
| OUTBY= | Information on only cross sections |
| OUTCONT= | Information on only time series variables |
| OUTEVENT= | Write event-oriented data |
| OUTSELECT= | Control reporting of all or only selected series and cross sections |
| INDEX | Create single indexes from BY variables for the OUT= data set |
| ALIGN= | Control the alignment of SAS date values |
| Subsetting Option and Statements | |
| INTERVAL= | Select periodicity of series to extract |
| KEEP | Time series to include in the OUT= data set |
| DROP | Time series to exclude from the OUT= data set |
| KEEPEVENT | Events to include in the OUTEVENT= data set |
| DROPEVENT | Events to exclude from the OUTEVENT= data set |
| WHERE | Select cross sections for output |
| RANGE | Time range of observations to be output |
| Assigning Attributes Options and Statements | |
| FORMAT | Assign formats to variables in the output data sets |
| ATTRIBUTE FORMAT= | Assign formats to variables in the output data sets |
| LABEL | Assign labels to variables in the output data sets |
| ATTRIBUTE LABEL= | Assign labels to variables in the output data sets |
| LENGTH | Control the lengths of variables in the output data sets |
| ATTRIBUTE LENGTH= | Control the lengths of variables in the output data sets |
| RENAME | Assign new names to variables in the output data sets |