Gavin Simpson

To complete the plot for `autoplot.prc()` we need to draw species names/labels on the right hand side of the plot. There are issues in doing this as it lies outside...

Has rmarkdown rendering of images included via markdown with alt text changed? How to avoid md markup conversion to html?

2

A couple of days ago I noticed that my `README.md` that is automatically built from the `README.Rmd` in my repo via GH Actions had changed: https://github.com/gavinsimpson/gratia/commit/be93b193b8092517d9d75d81e2b565da801efb46 In place of the...

Add a `permutations()` function

1

This would take a supplied vector to be permuted, the control, and the number of permutations, and then return that vector permuted according to each permutation. See #33

`permute()` generates the entire set of permutations or a subset of them each time it is called. Allow the permutations to be passed in... Also consider adding functionality that would...

Add a startup message to warn about issues with RNG in R <= 3.5.3

2

As discussed in #25 add a startup message to warn about using *permute* with versions of R = 3.6.0 (when it is released) which has knock-on effects for packages that...

Add an option to do permutations that are assignments of n observations to k groups

4

This is a different problem than tackled by **permute** currently and it pertains to the Golden Jackals example, where even though there are only 184,756 useful permutations, `numPerms()` will report...

`numPerms()` makes several calls to `factorial()`, which, for sufficiently large `n` exceed the limits on the implementation. With `factorial()`, exceeding the limits results in a warning that the largest value...

Canoco 5 has added an option to preserve symmetric spatial autocovariance in spatial grid permutations by disallowing mirroring in _both_ the x and y spatial directions at the same time....

Provide less verbose output in `summary.foo` for ordinations

25

@tpoisot comment on Twitter how verbose the outputs from some `summary` methods are for ordination models. These don't so much as summarise a fit but provide detailed output including lots...

Add the modified pseudo F statistic from Anderson et al 2017 to account for heterogeneity in adonis/adonis2

2

Anderson et al (2017: [doi: 10.1111/anzs.12176](https://doi.org/10.1111/anzs.12176)) have proposed a modification to the pseudo F statistic in PERMANOVA that accounts for group heterogeneity. The modified F is: ...