matrix data

  1. C

    Two-Level Model in Matrix Notation

    A two-level model, with one explanatory variable at the individual level (X) and one explanatory variable at the group level (Z): Y_{ij}=\gamma_{00}+\gamma_{10}X_{ij}+\gamma_{01}Z_{j}+\gamma_{11}X_{ij}Z_{j}+u_{0j}+u_{1j}X_{ij}+e_{ij}\ldots (1) correlation between u_{0j} and u_{1j} is 0 . The...
  2. C

    Analysis for behavior change over sample treatments

    Hello all! My research examined if social behaviors in animals changed with the distribution of food treatment (clumped vs. dispersed food). My data is non-parametric. I have matrices of interaction rates between individuals. I ran Mantel tests between the interaction matrices of the...
  3. G

    Can AMOS work with data composed of probabilities rather than correlations?

    Hello everyone, My question is a bit unusual, since it is not about the program itself, but regarding the data. I have a matrix representing (reverse) distance between each pair of objects. In SEM, we usually work with correlations. A higher correlation represents variables that are closer...
  4. S

    Constrained Bootstrapping

    I need to generate bootstrapped data sets from matrix with the following constraints: 1. The row sums remain constant, i.e., the same as the original matrix 2. Autocorrelations for each matrix row in the original matrix is preserved How do I go about this? My understanding is that there are...