Consistent policy on namespace

[athowes]

we need to do something about our namespace. Are we:

1. Not using the namespace nad only using package::function
2. Using @importFrom in the roxygen
3. Both all the time
4. 2. and then sometimes 1. for uncommon functions

Originally posted by @seabbs in #70 (comment)

Based on call with @seabbs, I currently prefer importing all functions from currently used packages (data.table, ggplot2, maybe brms) and then using :: for other things. Perhaps this is only because I've never used the roxygen2 version. Also if a user copy pastes the function out of their R console it won't have the roxygen2 right?

[seabbs]

I think it would be unusual to use a mix of namespace and ::. If using the namespace at all I think we want everything in it but we can also use :: as you say

[athowes]

think it would be unusual to use a mix of namespace and ::. If using the namespace at all I think we want everything in it but we can also use :: as you say

Note that this is different to where we ended up I think.

This should be closed by #329.

[athowes]

Closed by #329.