What’s New In SAS LASR Analytic Server

Overview

SAS LASR Analytic Server 2.5 includes the following changes:
  • the addition of automatic _T_LASRMEMORY and _T_TABLEMEMORY tables for monitoring server and table memory use
  • enhancements to the IMSTAT procedure

The _T_LASRMEMORY and _T_TABLEMEMORY Tables

The two tables are automatically available to report the memory use for the server and the memory use for the tables in a SAS LASR Analytic Server library.

Enhancements to the IMSTAT Procedure

The following enhancements have been made to the IMSTAT procedure:
  • The AGGREGATE statement is enhanced to support the KEEPRECORD option and the KEEP= option. The KEEPRECORD option is used to add an aggregated value for each input observation by aggregating the input observations with ID= values that are specified in INTERVAL= and WINDOWINT= options. The KEEP= option is used to transfer variables from the active table to the ODS table output or temporary table.
  • The NEURAL statement is added to the IMSTAT procedure. The statement is used to train feed-forward artificial neural networks (ANN), and it can use the trained networks to score data sets.
  • The SAVE statement is enhanced to support a CSV option. This option enables you to save in-memory tables to HDFS in the comma-separated value format.
  • The SERVERPARM statement is enhanced to support the TABLECEILING option. This option enables an administrator to set a soft limit for memory use by tables.
  • The analytic statements that support generating SAS DATA step code with a CODE= option are enhanced. For example, if the active table that is analyzed includes columns with special characters or international characters that require the name literal syntax for a column like 'profit (%)'n, then the generated code also uses the name literal syntax. The enhancement applies to the following statements:
    • CLUSTER
    • DECISIONTREE
    • GENMODEL
    • GLM
    • LOGISTIC
    • NEURAL
    • RANDOMWOODS

Documentation Enhancements

The DESCENDING option is added to the documentation for the LOGISTIC statement in the IMSTAT procedure. This option has been available in the software since the SAS In-Memory Statistics for Hadoop 2.1 release in December 2013.
In the IMSTAT procedure, the FORMATWIDTH= option is available with many statements. The alias for this option is corrected to be FMTW=.
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