Find answers to your questions about Cross Validated or help others by answering their Cross Validated questions.
So I've been looking into the idea of looking into conformal predictions, or to obtain prediction intervals instead of just single point predictions. Basically my take is that I would...
Asked on 12/29/2021 by bioinformatics_student
0 answerGiven that log difference = percent change why not make the series stationary by just using percent change as the regresor. a. It's not an approximation and we can interpret...
Asked on 12/29/2021 by tjaqu787
0 answerStatement of the problem: in a study, continuous and dichotomous variables were measured for both eyes for 60 individuals. The researchers needs estimates of expected values (means and proportions) for...
Asked on 12/29/2021 by Nicolas Molano
4 answerI just did a series of 40 t-tests and then proceeded to use bonferroni correction for multiple testing and my P values reduced in size. Why does this happen? I...
Asked on 12/29/2021
1 answerI am trying to solve this problem and have solved all parts except for the last part. I have tried to...
Asked on 12/29/2021 by Ahsan
2 answerWhat is an example of perfect collinearity in terms of the design matrix $X$? I would like an example where $hat beta = (X'X)^{-1}X'Y$ can't be estimated because $(X'X)$...
Asked on 12/27/2021 by TsTeaTime
3 answerI have a basic question in time series modeling. (using r but the question is not particularly about r) For a time series with obvious seasonality, shall I use ...
Asked on 12/27/2021 by string_is_hard
1 answerI have a cross-section of $x$, $y_1$, and $y_2$. These are individual level data used in labor economics. I have random variation in $x$ and I'm...
Asked on 12/27/2021 by sgtbp
2 answerI'm working on a logistic regression model, I have 417 independent variables to try, but running a model with all of them is too much (for Rstudio), what would be...
Asked on 12/27/2021
3 answerJust wanted to ask whether the following derivation is correct: Suppose $X$ is a vector of observed random variables, $Z$ is a vector of unobserved random variables and...
Asked on 12/27/2021
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