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• JMP Partition/Decision tree - Model Selection and Validation with Test Set

  Hi forum members,
  
  I have the following problem. I want to do classification using SAS Jmp Partition.
  The dataset has 2 classes: positive and negative. I wrote a JSL script that loads
  the dataset from file. The test set is defined by excluding a certain amount of rows
  and doing training of the decision tree on the training set (given by all included rows).
  The training is done by hitting the "Go" button...

  

  Discussions |

  Jan 13, 2010 12:48 PM

  11773 views | 1 replies

• How to compare two regression coefficients?

  Hi, i have a data set with:
  2 groups: A and B
  for each case, 2 variables: var1 and var2
  i'd like to compare regression coefficient R2 and R2 (between the 2 groups) for the regression curves: var1=R1*var2 and var2=R2*var2
  
  I know how to obtain R1 and R2 (fit y by x (var2=y and var1=x), group by "group", but I don't know how to compare R& and R2 to say there are not equal (or R1>R2).
  
  Thank's for your help...

  Anonymous

  Discussions |

  Jan 9, 2010 12:32 PM

  12136 views | 4 replies

• Comparing multiple rows in a large table & keeping row with largest value

  Hi Guys-
  
  I am somewhat new to JMP...I have a large 1,000,000+ row table (13 columns) that I need to consolidate in the following way:
  
  I have multiple rows for observations on a single case- (not each case is observed the same number of times- some have 3 observations, some 10). I want to construct a summary table, keeping the observation with the largest values for each unique case.
  
  Thanks!
  
  -t

  leapfrog

  Discussions |

  Jan 8, 2010 3:19 PM

  5519 views | 6 replies

• applying formula to entire jmp data table

  Hi,
  
  I am new to using jmp and sas, so I apologize that this may be a simple question. I have a table with values in it, and I would like to create a new table with the same columns and rows, but with a formula applied to the entire new table. I have thousands of columns, so it is not practical to apply the formula column by column. I would really appreciate any suggestions that anyone could offer.
  
  T...

  

  Discussions |

  Jan 5, 2010 1:10 PM

  5142 views | 6 replies

• Multiple range tests: How can I change the cutoff level from alpha=0.05?

  When I run a multiple range test from the “Fit Model” on the “Analyze” main menu of either JMP 7 or JMP 8 (which can be done by running the model, expanding the “Effect Details” section of the output and then clicking on “LS Means Student’s t” or “LS Means Tukey HSD” depending on the type of test I want), I get a set of pairwise comparisons performed at the 5% significance level.
  
  I need to change t...

  

  Discussions |

  Jan 4, 2010 8:33 AM

  9394 views | 2 replies