search for: wearparts

...riable) - Environmental data: Temperature and humidity have been measured at each of the wear-parts on a yearly basis (because each wear-part is at a different location, I have different data for each wear-part) PROBLEM: I started collecting data between 2001 and 2007. In 2001, a vast amount of of wearparts has already been in use. I DO KNOW for every part how long it has been used (even if it was employed before 2001), but I DO NOT have any information about environmental conditions like temperature or humidity before 2001 (I call this semi-left-censored). Of course, one could argue that I should sim...

...low if unclear)? For me personally it would already be a great help to know if this is statistically feasible in general, however I'm also interested if it can me modelled with aftreg. EXAMPLE (to make sure we're talking about the same thing): Suppose I want to model the lifetime of two wearparts A and B with "temperature" as a covariate. For some reason, I can only observe the temperature at three distinct times t1, t2, t3 where they each have a certain "age" (5 hours, 6 hours, 7 hours respectively). Of course, I have a different temperature for each part at each o...