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Math Help - Changing from Decibel to normal with pdfs

  1. #1
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    Changing from Decibel to normal with pdfs

    Hi,

    I have a distribution that is normal in the dB scale. When I convert it to the normal scale I cannot seem to get it to work for me.

    For example I have a normal distribution with mean 0 variance 1.

    I'm always adding 1 to numbers from that distribution and want to see the new pdf.

    If I just generate variable x, then convert by 10 ^{ \frac{x}{10}}

    I can get the result but I want to be able to play with the pdfs.

    Is there a way to do this correctly using only the pdfs?

    I've tried converting the ranges but this leads to the problem of unevenly spaced bins.
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  2. #2
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    Quote Originally Posted by Beebs View Post
    Hi,

    I have a distribution that is normal in the dB scale. When I convert it to the normal scale I cannot seem to get it to work for me.

    For example I have a normal distribution with mean 0 variance 1.

    I'm always adding 1 to numbers from that distribution and want to see the new pdf.

    If I just generate variable x, then convert by 10 ^{ \frac{x}{10}}

    I can get the result but I want to be able to play with the pdfs.

    Is there a way to do this correctly using only the pdfs?

    I've tried converting the ranges but this leads to the problem of unevenly spaced bins.
    You're transforming the random variable X into a new random variable Y = ..... (insert relationship between X and Y). Have you been taught how to find the new pdf?
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