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The fir data frame has 50 rows and 3 columns.
fir
The number of balsam-fir seedlings in each quadrant of a grid of 50 five foot square quadrants were counted. The grid consisted of 5 rows of 10 quadrants in each row.
This data frame contains the following columns:
count
The number of seedlings in the quadrant.
row
The row number of the quadrant.
col
The quadrant number within the row.