Questions tagged [boxcox-transformation]

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Optimization of Box-Cox and Yeo-Johnson Log-Likelihood function

This question is a continuation of this question: Derivation of Box-Cox and Yeo-Johnson Log-Likelihood Functions. In order to derive the maximum lambda value in log-likelihood objective function for ...
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Multiple comparisons of Box-Cox transformed data

I'm working on a dataset of highly-skewed data that I have transformed using Box-Cox. I have 2 groups (healthy controls and diseased participants) and I need to perform multiple comparisons (to ...
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What can OLS with a Box-Cox transformed dependent variable tell me?

Just to ellaborate: I’m doing an OLS-test to determine the following things: Do my independent variables have a significant effect on the dependent variable? What’s the direction of the effect of my ...
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Is there any alternative way to Box-Cox transformations to stabilize the variance of a time series?

My question is straightforward: Is there any alternative way to Box-Cox transformations to stabilize the variance of a time series?
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Box-cox transformation question about the formula [duplicate]

Recently I am learning box-cox transformation. I know the transformation is to make data normal. And the formula for box-cox is: However, I am confused why when people get lambda, they will do the ...
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Box-Cox transform doesn't make data normal

I'm working with the famous diamonds dataset and the target value is non-normal: After applying the Box-Cox transform, the shape of the histogram is closer to a normal distribution but the quantile ...
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Using Box-Cox transformed features as input decreased the $R^2$ score of a regression model

I am working on building a regression model to predict housing sales price using house features (Ames housing dataset). And I prepared feature set in two ways Case 1. I performed boxcox ...
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Mixed ANOVA - Can We Standardize After Box-Cox Transformed Values

in our mixed ANOVA (2 timepoints, 3 interventiongroups, so 2x3 factorial ANOVA), the homogeneity of the residual variance was violated as indicated by significant levene tests, for the post-...
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box-cox transformation formula

In this page: https://www.statisticshowto.com/box-cox-transformation/ The formula of box cox is: But the transformed data, e.g., lamdha=1 is ...
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