Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with mixed-model
Search options not deleted
user 244402
Mixed (aka multilevel or hierarchical) models are linear models that include both fixed effects and random effects. They are used to model longitudinal or nested data.
3
votes
2
answers
432
views
How to combine random effect and nested random effect with lme
I'm doing a mixed linear model. And I have subjects who have been select in 20 schools. So I want to take this to account.
For this, I want to put a random intercept for the "SCHOOL" variable and a …
- 51
0
votes
1
answer
442
views
How to check the linearity of continuous variable in linear mixed model
I'm doing a linear mixed model using lme.
In my adjustement factors, I have a continuous varaible (named X1). And I want to check the linearity of this variable using a spline function or a fractiona …
- 51
1
vote
0
answers
84
views
How to calculate a sample size for a longitudinal study with repeated data?
Did you know a program or logiciel that allows to calculate the sample size for a longitudinal study with repeated data ?
And if my subjects are nested in some schools, how I calculate the sample siz …
- 51
1
vote
1
answer
746
views
Interpretation linear mixed model with interaction
I'm doing linear mixed model with an interaction between the time and my exposure.
The fixed effects look like this :
$$Y \sim T + T\cdot \text{GRP} + X$$
with $T$ the time, $\rm GRP $ the exposure an …
- 51