Statistical Analysis Stack Exchange
Statistical Analysis Stack Exchange

Questions tagged [semi-partial]

9 questions
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1 answer

Is it a mistaken idea to use standardized coefficients to assess the relative importance of regression predictors?

There are various questions that speak to the relative merits of various methods of assessing the importance of regression predictors, for example this one. I noticed that in this comment @gung refers to the practice as a "mistaken idea", linking…
user1205901 - Reinstate Monica
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Partial correlations or multiple regression model

I am interested in the relation between two variables ${A}$ and ${B}$ while controlling for several covariates. Some of these covariates are strongly correlated with ${A}$ and mildly correlated with ${B}$. This relation could be tackled in two…
partialcorrelations
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what's the difference between semi-supervised learning and partially supervised learning?

Isn't every semi-supervised problem also a partially supervised learning problem and vice versa?
mlvalidated
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When to use partial vs semi-partial correlation?

I understand the concepts of partial and semi-partial correlation, but I am still not clear on when to use one over the other. Are there specific research questions that would determine that we need to control the third variable for only one vs for…
Xanthippus
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Partial and Semi-partial/Part correlation in matrix/vector form

For three variables, e.g. $X$, $Y$, and $Z$, it is easy for me to deduce the partial and semi-partial correlation coefficients (in general), however I cannot do the same for more than three variables. If, $$ X = \alpha + \beta Z + \delta, \quad…
Stephanie
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Partial R2 for factors in nlme

I need to obtain partial R2 for all explanatory variables of a mixed model, which should also include a correlation structure. For instance: > mod_nlme = nlme(Richness_herbs ~ A*B + C, random = ~ 1|plot, data, corr = corSpatial(form = ~Easting…
Nausi
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Squared Semi-partial correlation for composite variable

I have 5 numerical variables (same units) (A, B, C, D, E and F) for N=13 countries. We could say I combine the variables into a composite variable called A. The formula is : A = (B + C + D + E + F) divided by 5. I want to know which variable…
varin sacha
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How to figure out whether the model contains suppressors, enhancers, or redundant predictor variables?

So, I'm having a super-hard time understanding these concepts. I have created a model with one outcome variable and several predictors. Through the model, I have access to partial and semi-partial correlations, squares of semi-partial correlations…
Sverdo
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Generalisation of the formula for a semi-partial correlation coefficient

There are several places (e.g. this SE answer), where the formula for the semi-partial correlation coefficient of a variable $x$ with $y$, controlling for another variable $z$, say, is given as $$ r_{xy|z} = \frac{r_{xy} - r_{xz} r_{yz}}{\sqrt{1 -…
Anthony
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