Example ordination plot workflow could be improved/simplified - currently shows 10% prevalence filtering of genera before CLR transform on families..

[david-barnett]

https://david-barnett.github.io/microViz/index.html#example-ordination-plot-workflow

• Prevalence filtering before CLR transform will affect the result of CLR transform.
• tax_filter can do count-based filtering after tax_transform, so I could show that, safer, option
• however this can't be done directly in this example which shows aggregation and transformation at different ranks
• I could/should also acknowledge this issue somewhere, R.E. sequence of operations, relevant to filtering in context of CLR and proportional/compositional transforms)

[david-barnett]

removed example in 0.12.0 readme, as filtering arguably unnecessary in this example anyway