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Working through tests etc. while trying to make sure that the fix for https://github.com/lme4/lme4/issues/166 doesn't break anything else.
One of the tests in https://github.com/lme4/lme4/blob/master…
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I don't have singularity, but my model converges with the following errors
```R
convergence code: 0
unable to evaluate scaled gradient
Model failed to converge: degenerate Hessian with 32 nega…
hikea updated
3 years ago
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> I'm rather glad minpack.lm is available as I think the comparisons between it and nlmrt let us improve our codes. nlmrt is all in R, and I am acutely aware that it has some deficiencies. In particul…
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Besides the lower and upper bounds for the variables, I also have a constraint, that the sum of the variables must be limited to a certain value.
In scipy I would define it as follows:
```
x0=[…
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For the modal popup window such as the two buttons **Cancel** & **Invite**, can we center the buttons a bit more.
The buttons are a bit pushed towards the left side.
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The `'bbob/2019/GNN-CMA-ES_Faury.tgz'` and `'bbob/2019/IPOP-CMA-ES-2019_Faury.tgz'` data have no 20-D data. Should we consider moving them outside of the "official" archive?
```python
import cocop…
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Optimizer failed: Desired error not necessarily achieved due to precision loss.
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Hi Kevin,
I dug more into the parametrization of the Pea plant file according to field data.
You can have a look to the draft of a modelling report I am preparing here:
https://guillaume-blanchet…
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NLopt (http://ab-initio.mit.edu/wiki/index.php/NLopt) is a library for NLP. It includes some interesting algorithms, for example for global optimization and derivative-free optimization. There are als…
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From Marko Bachl, adapted from http://article.gmane.org/gmane.comp.lang.r.lme4.devel/10711 :
Recently, I installed the most recent version of `lme4` from github. I
re-ran an older model that worked w…