Tim I M Korevaar

6 Questions 21 Answers 0 Followers

Questions related from Tim I M Korevaar

Missing data in individual participant data meta analysis?

I am collecting individual participant data to perform meta analyses. Some of the cohorts did not collect data on potential confounders. I am wondering what is the best way to deal with this...

11 November 2017 8,997 4 View

How to optimally combine/harmonize data measured using different methods?

Dear all, I would like to pick your brains for the following problem. I want to combine data on an exposure (thyroid function or TSH) and outcomes from 5 studies. In each study, the outcome is...

11 November 2016 7,567 7 View

How can I plot regression line with residuals of a subset only, and in different colors using R?

I have a regression model with a significant interaction term between group a and b. In one single graph, I would like to plot the regression line of the whole group as well as the residuals of...

12 December 2015 9,111 11 View

Changing outcome axis in visreg2d plot?

Dear all, I am using visreg2d plots to visualize interaction. However, I would like to set the scale of the outcome axis (see example file, axis on the right) in order to show effects in...

10 October 2014 6,704 3 View

Is this three way interaction including two continuous variables and a dichotomous cut-off for one of the continuous variables valid?

Hello everyone, I am testing for statistical interaction between two variables in a logistic regression model and I am finding that from a biologically plausible level the interaction changes....

09 September 2014 7,188 5 View

Can anyone provide a good script to plot the interaction of two continuous variables?

I have been plotting my data with the rms package in R: fit

04 April 2014 7,624 4 View