discriminant

  1. L

    Way to pick apart Discriminant Function Analysis?

    Hi there, I'm new to the site, this is my first post! I've run a discriminant function analysis by entering syntax into SPSS. My data consists of sets of fish separated by species, and each species group has individuals ranging from 4 to 53 specimens. I have my output which is showing me...
  2. I

    Discriminant Analysis Within-Group versus Separate-Group Covariance Matrices Predict

    Hi, I'm hoping someone can help. I have ran a discriminant analysis along with the prediciton rates for the 5 groups in my study. I am wondering the reason why I get different prediction rates when using within-group versus separate group covariance matrices even though my coefficients are...
  3. C

    Converting Group Centroids into Original Measurement Units in DFA

    I used SPSS to perform a discriminant function analysis on leg length which I am using to differentiate males and females in my sample. New measures are classified as male if the discriminant value is above the mean of the Group Centroids, or female, if the value is below. What I would like...
  4. B

    Discriminant analysis Eigenvalues

    I have a specific question: when running a stepwise Discriminant analysis, if I get 2 or more steps, and then SPSS shows the eigenvalue of "function no. 1" ONLY which explains 100% of the variance, does this mean this function includes the variables in all of the steps? So, for example, I...