Infrared spectrum data treatment before processing

grandonia
grandonia New Altair Community Member
edited November 2024 in Community Q&A
Dears, we have been working with unscrambler for IR spectra (where we preteat the spectra with first and second derivatives and smoothing before doing anything else with the data... is there a way do to the same with RM?

Here is a picture of what I would like to do (go from A to C and then start the DM  ;))

image

And... at unscrambler I normally don't discretize the label column, use the numeric values. At RM only working nice creating cathegories (low, medium, high), which is fine too, but... wonder if I could do it the otherwise around too, or is this computationally too intensive.

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Answers

  • MartinLiebig
    MartinLiebig
    Altair Employee
    Dear grandonia,

    sorry i am unsure what you want to do. Simply the conversion A->C or some data mining on C?

    ~Martin
  • grandonia
    grandonia New Altair Community Member
    Hi Martin,

    Simply the conversion from A->C inside Rapidminer :)
  • grandonia
    grandonia New Altair Community Member

    Hi Martin, any news to make a smoothing + 2nd derivative of the data? With this procedure I can get rid of many variables that are useless :) Thanks!!

  • MartinLiebig
    MartinLiebig
    Altair Employee

    Hi,

     

    there are moving average and a differentiate operator in the series extension. Have you checked them?

     

    Best,

    Martin

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