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Why am I getting internal an error message?

Rarely, computational instability or a precision problem will result in an message stating that an "internal error" has been encountered. To help Salford Systems resolve the problem, please attempt the following:
  • Rebuild as an exploratory tree to see if CART completes the building process.
  • Rebuild the tree with a randomly-selected subset for testing (ERROR p=.2, for example).
  • Rebuild a cross-validation tree with an explicit SEED to perturb the selection of cross-validation subsets.
Please send Salford Systems via email (or diskette):
  • command files or commands used prior to the build;
  • output generated during the run;
  • frequency table of your target variable;
  • frequency table of your categorical predictor variables; and
  • if possible, your data set, or any subset that can reproduce the problem.

[J#370:1602]

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9685 Via Excelencia, Suite 208, San Diego, CA 92126
Ph: 619-543-8880
Fax: 619-543-8888
info (at) salford-systems (dot) com