Description Usage Arguments Value
Select a group of ids from a large data file.
1 | select_group(dat, group_var, s, columns, num_chunks, chunk_size = 10000)
|
dat |
the data. |
group_var |
the group variable. |
s |
vector of group identifiers to be selected. |
columns |
the columns to return, or NULL for all. |
num_chunks |
number of chunks to use. |
chunk_size |
number of rows in each chunk. Overridden by |
selected data.
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