R code to implement a method for multivariable Mendelian randomization which accounts for measurement error on exposures, as described in:
Zhu, J., Burgess, S. and Grant, A. J. (2022). Bias in multivariable Mendelian randomization studies due to measurement error on exposures. arXiv:2203.08668
The functions to implement the method are in mrest_me.R.
The R code to reproduce the primary simulation results and the applied examples from the paper is also provided.