Search results

  1. F

    Proportionate Hazards Model Cost Function

    Just a post to see if anyone on here is familiar with Andrew Jardine's work on hazard, risk and cost correlations within the PHM. A few questions when looking at the cost function, here is the literature I am following: and Is Q(d) simply the CDF? If not how is it different to F(t)? (the...
  2. F

    When to give up on a regression model

    I need to look further into Cox regression but my current understanding is that the covariates are binary, either a condition is met or it is not. I will look further into this. Thanks again =)
  3. F

    When to give up on a regression model

    Thanks Junes, the only reason I haven't used survival analysis sooner is because I need to create a model which considers the current operating conditions of the machine as well as the historical failure data. It seems most survival functions/methods I have come across only consider the...
  4. F

    When to give up on a regression model

    Thanks for your response people, I will look into the things you have mentioned.
  5. F

    When to give up on a regression model

    Hey guys, new member so bare with me here =) Currently I am undertaking a project for my studies. It requires I take some machine condition data as well as the age of the component and try to make a prediction on the remaining life based on these things. (Sorry I can't give exact descriptions...