The Interactive Decision Tree Application in SAS® Enterprise Miner™ might not use your entire data set. Instead, it uses a sample of at most 10,000 observations. The sample is used to prevent the excessive time and memory consumption that can occur with large data sets. However, you can override the default sample size.
In SAS Enterprise Miner 12.3 and later, override the sample size using the Interactive Sample properties in the Decision Tree node. Here is an excerpt from SAS Enterprise Miner Help.
Decision Tree Node Train Properties: Interactive Sample
For more information, see these SAS Enterprise Miner Help chapters:
To access the chapters from within SAS Enterprise Miner, select Help ► Contents ► Node Reference ► Model.
The macro options below are ignored in release 12.3 and in release 13.1, even though the options are still documented in the Help for those releases. The information in the Help is incorrect.
In SAS Enterprise Miner releases prior to 12.3, override the sample size by using the Project Start Code to specify a value for the EM_INTERACTIVE_TREE_MAXOBS= option. This excerpt from SAS Enterprise Miner Help provides details.
When you create a standard SAS Enterprise Miner decision tree, the decision tree will form splits based on all of the input data that is allocated for the node to use. In contrast, when you perform interactive decision tree training, you might potentially be training the interactive decision tree using a sample of the input data. Enterprise Miner determines whether to sample interactive decision tree data based on the number of rows and columns in the input data source's training data. The Enterprise Miner interactive decision tree data sampling algorithm performs a random sample of the input training and validation data by default, is automatic, and does not require user input for activation.
However, some users may wish to override default Enterprise Miner interactive decision tree sampling strategies. Enterprise Miner provides two macros that you can issue with your project startup code that will modify interactive decision tree input data sampling behaviors:
The first macro specifies the maximum number of observations that can exist in an Interactive Decision Tree node sample. You use this macro if you want to manually control the sample size. Otherwise, Enterprise Miner will use its own algorithms to perform sampling for your interactive decision tree.
The second macro specifies the sampling methodology that will be used to create an Interactive Decision Tree node sample. You can use this macro if you want to manually control the methodology Enterprise Miner uses to create interactive decision tree samples. By default, Enterprise Miner uses random sampling for interactive decision trees. You can use the macro to choose between RANDOM, STRATIFY, and FIRSTN sample creation. You use the EM_INTERACTIVE_TREE_MAXOBS macro to specify the number of observations for any of the sampling strategies.
After you run the desired statements in the Project Start Code, delete your Decision Tree node. Add a new Decision Tree node to the diagram, and continue with your interactive analysis. The new Decision Tree node uses the new Project Start Code settings.
For more information in the older releases, see the "Interactive Decision Tree Application" chapter in SAS Enterprise Miner Help.
Product Family | Product | System | Product Release | SAS Release | ||
Reported | Fixed* | Reported | Fixed* | |||
SAS System | SAS Enterprise Miner | Microsoft Windows 2000 Professional | 6.2 | |||
Microsoft Windows 2000 Server | 6.2 | |||||
Microsoft Windows 2000 Datacenter Server | 6.2 | |||||
z/OS | 6.2 | |||||
Microsoft® Windows® for 64-Bit Itanium-based Systems | 6.2 | |||||
Microsoft Windows Server 2003 Datacenter 64-bit Edition | 6.2 | |||||
Microsoft Windows Server 2003 Enterprise 64-bit Edition | 6.2 | |||||
Microsoft Windows 2000 Advanced Server | 6.2 | |||||
Microsoft Windows 95/98 | 6.2 | |||||
Microsoft Windows 8 | 6.2 | |||||
Microsoft® Windows® for x64 | 6.2 | |||||
Microsoft Windows XP 64-bit Edition | 6.2 | |||||
Microsoft Windows 2012 | 6.2 | |||||
Microsoft Windows NT Workstation | 6.2 | |||||
Microsoft Windows Server 2003 Datacenter Edition | 6.2 | |||||
Microsoft Windows Server 2003 Enterprise Edition | 6.2 | |||||
Microsoft Windows Server 2003 Standard Edition | 6.2 | |||||
Microsoft Windows Server 2003 for x64 | 6.2 | |||||
Microsoft Windows Server 2008 | 6.2 | |||||
Microsoft Windows Server 2008 for x64 | 6.2 | |||||
Microsoft Windows XP Professional | 6.2 | |||||
Windows 7 Enterprise 32 bit | 6.2 | |||||
Windows 7 Enterprise x64 | 6.2 | |||||
Windows 7 Home Premium 32 bit | 6.2 | |||||
Windows 7 Home Premium x64 | 6.2 | |||||
Windows 7 Professional 32 bit | 6.2 | |||||
Windows 7 Professional x64 | 6.2 | |||||
Windows 7 Ultimate 32 bit | 6.2 | |||||
Windows 7 Ultimate x64 | 6.2 | |||||
Windows Millennium Edition (Me) | 6.2 | |||||
Windows Vista | 6.2 | |||||
Windows Vista for x64 | 6.2 | |||||
64-bit Enabled AIX | 6.2 | |||||
64-bit Enabled HP-UX | 6.2 | |||||
64-bit Enabled Solaris | 6.2 | |||||
HP-UX IPF | 6.2 | |||||
Linux | 6.2 | |||||
Linux for x64 | 6.2 | |||||
Solaris for x64 | 6.2 |
Type: | Usage Note |
Priority: |
Date Modified: | 2016-05-25 08:38:54 |
Date Created: | 2012-08-13 15:55:15 |