manip_changes: Modifying changes to nodes over time

In manynet: Many Ways to Make, Modify, Map, Mark, and Measure Myriad Networks

Modifying changes to nodes over time

Description

These functions offer ways to modify data held about how nodes change over time. They include:

• add_changes() adds a table of changes to the nodes of a network.

• mutate_changes() can be used to update network changes.

• filter_changes() is used to subset network changes.

• collect_changes() is similar to filter_changes(), but collects the cumulative changes up to a time point.

• apply_changes() applies the changes collected up to a time point to a network, removing the changes.

An example of when this might be useful is to track change in the composition of a network (when nodes are present or absent over time), though the function can flexibly accommodate changes in other nodal attributes.

Usage

add_changes(.data, changes)

mutate_changes(.data, ...)

filter_changes(.data, ..., .by = NULL)

select_changes(.data, ..., .by = NULL)

collect_changes(.data, time)

apply_changes(.data, time)

Arguments

.data	An object of a manynet-consistent class: matrix (adjacency or incidence) from {base} R edgelist, a data frame from {base} R or tibble from {tibble} igraph, from the {igraph} package network, from the {network} package tbl_graph, from the {tidygraph} package
changes	A data frame of changes. Ideally this will be in the form of "wave", "node", "var", and "value", but there are internal routines from some otherwise common formats. A data frame of composition change can be just two columns.
...	Additional arguments.
.by	An attribute name to join objects by. By default, NULL.
time	A time point or wave at which to present the network.

See Also

to_time()

Examples

add_changes(ison_algebra, 
            data.frame(wave = 2, node = 1, var = "active", value = FALSE))
filter_changes(fict_starwars, node == "Anakin")
select_changes(fict_starwars, node)
collect_changes(fict_starwars, time = 3)
collect_changes(fict_starwars, time = 3)

manynet documentation built on June 23, 2025, 9:07 a.m.