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  • Transition probabilities: too many values

    I have an unbalanced panel (id date) with around 8 million observations. My categorical variable occu takes 337 unique values. I need to compute transition probabilities for occu and save the matrix of probabilities. I run:
    xttrans2 beruf, matcell(T)
    svmat
    And I get the message 'too many values'.
    I tried to compute transition probabilities looping over each value of my categorical variables:
    foreach i in occu {
    qui xttrans2 `i', matcell(X`i') prob
    qui svmat X
    }
    This did not work either.
    Thanks
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