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  • #2685
    protima
    Participant

    PHM Challenge Committee,

    I want to clarify my understanding of the training dataset. For example:

    id trq_measured oat mgt pa ias np ng
    0 76.2 29.5 648 303.276 0 99.83 96.77

    This indicates that for observation 0, the measured torque is 76.2. Could you clarify what the other metrics mean: oat, mgt, pa, ias, np and ng?

    Is the torque target or torque margin included in the training data?

    #2699
    thejbills
    Keymaster

    From the data challenge problem descrition page

    Each engine is instrumented to capture the outside air temperature, mean gas temperature, power available, indicated airspeed, net power, and compressor speed.

    oat = outside air temperature
    mgt = mean gas temperature
    pa = power available
    ias = indicated airspeed
    np = net power
    ng = compressor speed (that one’s not as obvious)

    #2705
    protima
    Participant

    Thank you this is very helpful.

    I think I must be misunderstanding the problem in some way. Is the design target for torque not included in the training dataset?

    #2706
    thejbills
    Keymaster

    Design torque is not a measured variable, thus it’s not in the X_train.csv (features) file. And the goal is to predict the torque margin which is a function of the design torque. Torque margin is given in the y_train.csv (targets) file.

    #2707
    protima
    Participant

    Ah, I understand now. Thank you so much!!

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