diff --git a/NEWS.md b/NEWS.md index c278388fe..fa4c17e10 100644 --- a/NEWS.md +++ b/NEWS.md @@ -72,6 +72,16 @@ table results will likely be different because in the last release the `saem` calculated `combined1` and then used these coefficients in the `combined2` focei problem. + +## nlme changes + +- `nlme` will now support 2 combined additive + proportional error models (if the patched version of nlme is used) + - `combined1`: `y = f + (a+b*f^c)*err` + - `combined2`: `y = f + sqrt(a^2+b^2*f^(2c))*err` + - See https://github.com/nlmixrdevelopment/nlmixr/issues/428 + - Thanks to @jranke for the nlme patch and the catch + +- Can switch with `nlmeControl(addProp="combined1")` to use the combined1 type of error model ## New Utilities