[feature-idea]: zcol count parameter #495
Description
I often have datasets where I would like to visualize the number of occurrences of my zcol variable ("name" in this example), e.g.
| Geometry | name |
|---|---|
| (1, 1) | "a" |
| (1, 2) | "b" |
| (1, 3) | "c" |
| (1, 4) | "d" |
| (1, 3) | "c" |
| (1, 1) | "a" |
and what I want displayed by mapview is really the summarized dataframe:
| Geometry | name | count |
|---|---|---|
| (1, 1) | "a" | 2 |
| (1, 2) | "b" | 1 |
| (1, 3) | "c" | 2 |
| (1, 4) | "d" | 1 |
where the new "count" column is the one visualized on a scale with zcol. However, it should still display the "name" column when I mouse over the data points for ease of identification.
I could accomplish something close to this by using mapview(df |> dplyr::count(name), zcol = "n", label = "name"), but it might be more intuitive if it could be implemented as a one-step function within the mapview call, perhaps something like mapview(df, zcol = "name", count = TRUE).