Good style format the code (solution)

Exercise

Output solution

Attaching package: 'dplyr'

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

Rows: 10764 Columns: 4
── Column specification ────────────────────────────────────────────────────────
Delimiter: "\t"
chr (1): Species
dbl (3): Year, Plot, DBH

ℹ Use `spec()` to retrieve the full column specification for this data.
ℹ Specify the column types or set `show_col_types = FALSE` to quiet this message.
Rows: 32 Columns: 2
── Column specification ────────────────────────────────────────────────────────
Delimiter: "\t"
chr (2): SPCODE, SPECIES

ℹ Use `spec()` to retrieve the full column specification for this data.
ℹ Specify the column types or set `show_col_types = FALSE` to quiet this message.
`summarise()` has grouped output by 'Year', 'Plot'. You can override using the `.groups` argument.