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Questions - lm

How to plot interaction effects with individual-level variable and individual fixed-effects?

I have a dataset with individual id (factor), time t (factor), a dependent variable y (continuous) and an independent variable x (continuous), which can be measured at time t xt or can be set at the i...
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Marco Pastor Mayo

r

panel

lm

effects

marginal-effects

Votes: 0

Answers: 2

Latest Answer

A less cumbersome way to estimate the same models that you posted in the answer to your own question would be to use the colon notation: set.seed(100) df <- data.frame(id=as.factor(rep(1:20, each =...
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Vincent

Bootstrap function for dataframe - passing a function as an argument in R

I am trying to create a bootstrap function for my assignment. The requirement is as follows: Compute the bootstrap standard error for: - mean() and - median() and - the top quartile and -...
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Kh&#225;nh Nguyễn

r

function

lm

statistics-bootstrap

coefficients

Votes: 0

Answers: 0

Confidence intervals from mocel coefficients vs whole model

I'm trying to demonstrate that there is an important difference between two ways of making linear model predictions. The first way, which my heart tells me is more correct, uses predict.lm which as I ...
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AndrewMacDonald

r

lm

predict

confidence-interval

Votes: 0

Answers: 1

Latest Answer

In this case, they would be close because there is very little correlation between the model parameters, so drawing them from two independent normals versus a multivariate normal is not that different...
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DaveArmstrong

Using function lm() with group_by in R

I'm trying to create some lm() models for every level of the categorical variable, from one dataframe. I used function lm() with group_by, but it doesn't work, creating only one model. Of course, it i...
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PenguinPartyH0

r

group-by

apply

purrr

lm

Votes: 0

Answers: 1

Latest Answer

I would check out the many models chapter of R for data science: https://r4ds.had.co.nz/many-models.html library(tidyverse) make_model <- function(data){ lm(Sepal.Length~Sepal.Width,data) } iris...
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Magnus Nordmo

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