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Thread: Residuals in bivariate TLS regression

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    Residuals in bivariate TLS regression

    Hi all,

    I'd like to calculate the Y-residuals from a TLS regression line: Y~X. Please take a look at the attached picture.

    Are the residuals of the Y-variable given by the red vertical line or by the green vertical line?

    In OLS regression, it would be the red vertical line but with TLS regression I'm uncertain.

    Hope that somebody knows the answer.

    Many thanks in advance!

    TLS: total least squares
    OLS: ordinary least squares
    Y~X: Y as a function of X
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