twostep procedure

  1. T

    How to input distance matrix in SPSS to do Twostep cluster analysis?

    I already have a distance matrix (1609*1609) and each distance is between 0~1. I want to cluster 1609 items into natural groups by using Twostep cluster in SPSS. I want to use the distance matrix as input for Twostep cluster analysis. How to modify the syntax to do that? Or I cannot do it...
  2. O

    Heckman selection model - suitable for categorical and continuous DVs?

    Hello everyone, I am trying to figure out whether Heckman selection can be and should be used for my data. I have the same group of investors who are first of all asked about their willingness to invest in a specific project (on a 1-7 scale) and afterwards, after being presented with...