aggregate_to_pref_suff_byname | R Documentation |
Row and column names are often constructed in the form
prefix_start
prefix
prefix_end
suffix_start
suffix
suffix_end
and described by a notation vector.
(See notation_vec()
.)
This function performs aggregation by prefix or suffix according to a notation vector..
aggregate_to_pref_suff_byname( a, aggregation_map = NULL, keep, margin = c(1, 2), notation, pattern_type = "exact" )
a |
a matrix of list of matrices to be aggregated by prefix or suffix |
aggregation_map |
See |
keep |
See |
margin |
the dimension over which aggregation is to be performed; |
notation |
See |
pattern_type |
See |
This function is a convenience function, as it bundles sequential calls to two helper functions,
rename_to_pref_suff_byname()
and aggregate_byname()
.
All arguments are passed to the helper functions.
An aggregated version of a
.
# This function is superseded. # Instead, use `aggregate_pieces_byname()`. # For example: m <- matrix((1:9), byrow = TRUE, nrow = 3, dimnames = list(c("r1 -> b", "r2 -> b", "r3 -> a"), c("c1 -> z", "c2 -> y", "c3 -> y"))) m aggregate_pieces_byname(m, piece = "pref", notation = RCLabels::arrow_notation) aggregate_pieces_byname(m, piece = "suff", notation = RCLabels::arrow_notation) # Original examples: # Aggregation by prefixes does nothing more than rename, because all prefixes are different. # Doing renaming like this (without also aggregating) is potentially dangerous, because # some rows and some columns could end up with same names. aggregate_to_pref_suff_byname(m, keep = "pref", notation = RCLabels::arrow_notation) # Aggregation by suffix reduces the number of rows and columns, # because there are same suffixes in both rows and columns aggregate_to_pref_suff_byname(m, keep = "suff", notation = RCLabels::arrow_notation)
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