conditional regression

  1. G

    mlogit: restrict coefficient of alternative-invariant variable to be equal for alt

    Hi. For evaluating a choice experiment I estimate a conditional logit model with mlogit in R . The output looks like this: Call: mlogit(RES ~ Money + X1a + X1b + X2a + X2b | Age, data = CE, reflevel = "C", shape = "long", alt.var = "ALT", method = "nr", print.level = 0) Frequencies...
  2. P

    PAF through formula or through Conditional Logistic Regression

    Hi all, In a large registry dataset of psychiatric patients, if one wants to find the excess risk of schizophrenia patients developing depression, what would be the best method to apply: 1) Use the relevant formula to calculate PAF (Population Attributable Fraction). Formula can be...
  3. A

    Conditional logistic regression- effect of modifiers

    Hi everybody, I am new here in this forum. I am studying the effect of air pollution (PM) on health outcomes, and the characteristics that might modify this effect, using the case crossover analysis. This analysis followed a case crossover procedure where each subject with event contributes...
  4. L

    Conditional change ordered logistic with different approach of same variable

    LS, I am working with two-wave panel data looking at outcomes of retirement on self-rated health (5 point scale, very good to very bad)). It is questionable to interpret this variable as interval/ratio, therefore I use ordered logistic regression (ologit in STATA). The results show significant...
  5. A

    Regression Analysis Based on Condition

    Hi there, I am trying to do a regression analysis. My columns looks like this: AA 1 GG 2 AG 2 If the column 2 contains "2" so represents G and if "1", represents A. How will I do regression analysis based on A and G, separately (based on second column). My purpose is do...
  6. J

    Conditional regression

    Hi all, I am trying to run explanatory regression: Y = alpha + Beta1*X*I{X.*Y>0}+Beta2*X*I{X.*Y<=0} where I{} is indicator function Since dependent variable info is used on the RHS and includes information about the response coefficient sign, all the statistics will be high: t-stats...