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network <- create_transition_network(
sequence_data,
normalise = "from",
include_self = TRUE
)
network
#> group_key context from_state to_state count sequence_count
#> 1 __all__ category category home 1 1
#> 2 __all__ category category product 1 1
#> 3 __all__ home home category 2 2
#> 4 __all__ home home search 3 3
#> 5 __all__ product product checkout 2 2
#> 6 __all__ product product home 1 1
#> 7 __all__ search search product 2 2
#> sequence_prevalence weight
#> 1 0.25 0.5000000
#> 2 0.25 0.5000000
#> 3 0.50 0.4000000
#> 4 0.75 0.6000000
#> 5 0.50 0.6666667
#> 6 0.25 0.3333333
#> 7 0.50 1.0000000
summarise_transition_centrality(network)
#> state out_degree in_degree total_degree out_strength in_strength
#> 1 category 2 1 3 1 0.4000000
#> 2 checkout 0 1 1 0 0.6666667
#> 3 home 2 2 4 1 0.8333333
#> 4 product 2 2 4 1 1.5000000
#> 5 search 1 1 2 1 0.6000000
#> total_strength closeness betweenness pagerank
#> 1 1.4000000 0.3582090 1 0.1362227
#> 2 0.6666667 0.0000000 0 0.2207604
#> 3 1.8333333 0.3636364 4 0.2020395
#> 4 2.5000000 0.2727273 5 0.2704079
#> 5 1.6000000 0.2857143 1 0.1705694
detect_transition_communities(network)
#> state community
#> 1 category 1
#> 2 checkout 1
#> 3 home 1
#> 4 product 1
#> 5 search 1Centrality values are graph-structural descriptors. They do not independently measure attention, importance, intent, or influence.
model <- fit_higher_order_transition_model(
sequence_data,
order = 2L,
smoothing = 0.5,
backoff = TRUE
)
predict_next_state(model, c("home", "search"))
#> order context next_state count probability used_order used_context
#> 1 2 home > search product 2 0.5555556 2 home > search
#> 2 2 home > search category 0 0.1111111 2 home > search
#> 3 2 home > search checkout 0 0.1111111 2 home > search
#> 4 2 home > search home 0 0.1111111 2 home > search
#> 5 2 home > search search 0 0.1111111 2 home > search
predict_next_state(model, c("unseen"))
#> order context next_state count probability used_order used_context
#> 1 0 <unseen> category 0 0.2 0 <unseen>
#> 2 0 <unseen> checkout 0 0.2 0 <unseen>
#> 3 0 <unseen> home 0 0.2 0 <unseen>
#> 4 0 <unseen> product 0 0.2 0 <unseen>
#> 5 0 <unseen> search 0 0.2 0 <unseen>boot <- bootstrap_transition_network(
sequence_data,
n_boot = 20L,
level = 0.95,
seed = 8L
)
head(boot)
#> group_key context from_state to_state count sequence_count
#> 1 __all__ category category home 1 1
#> 2 __all__ category category product 1 1
#> 3 __all__ home home category 2 2
#> 4 __all__ home home search 3 3
#> 5 __all__ product product checkout 2 2
#> 6 __all__ product product home 1 1
#> sequence_prevalence weight bootstrap_mean bootstrap_sd conf_low conf_high
#> 1 0.25 0.5000000 0.5166667 0.3932917 0.0000000 1.0000000
#> 2 0.25 0.5000000 0.4833333 0.3932917 0.0000000 1.0000000
#> 3 0.50 0.4000000 0.4064286 0.1762160 0.2000000 0.6787500
#> 4 0.75 0.6000000 0.5935714 0.1762160 0.3212500 0.8000000
#> 5 0.50 0.6666667 0.6083333 0.2164641 0.3333333 1.0000000
#> 6 0.25 0.3333333 0.3916667 0.2164641 0.0000000 0.6666667
#> n_boot confidence_level
#> 1 20 0.95
#> 2 20 0.95
#> 3 20 0.95
#> 4 20 0.95
#> 5 20 0.95
#> 6 20 0.95Bootstrap samples are drawn at the sequence level, preserving within-sequence transition dependence.
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