Reversal of cell values

[Rodrigue]

hi @naja

It more easy to help with a REProductible EXample. see here:

FAQ: What's a reproducible example (`reprex`) and how do I create one?

Why reprex? Getting unstuck is hard. Your first step here is usually to create a reprex, or reproducible example. The goal of a reprex is to package your code, and information about your problem so that others can run it and feel your pain. Then, hopefully, folks can more easily provide a solution. What's in a Reproducible Example? Parts of a reproducible example: background information - Describe what you are trying to do. What have you already done? complete set up - include any library() calls and data to reproduce your issue. data for a reprex: Here's a discussion on setting up data for a reprex make it run - include the minimal code required to reproduce your error on the data…

I test with an example of 2*2 numeric matrix. I've just done 1 - mymatrix

 
mat <- matrix(c(0.9,0.7,0.3,0.4), nrow = 2)
mat
#>      [,1] [,2]
#> [1,]  0.9  0.3
#> [2,]  0.7  0.4
1-mat
#>      [,1] [,2]
#> [1,]  0.1  0.7
#> [2,]  0.3  0.6

^{Created on 2019-12-13 by the reprex package (v0.3.0)}

Hope it help