one_ffluency: Fast verbal fluency generator
In memnet: Network Tools for Memory Research

Description Usage Arguments Details Value References Examples

Generates verbal fluency data using a switcher-random walk process.

1	one_ffluency(adj_list, n, pjump = 0, type = 0L)

`adj_list`	a list containing row indices of nodes adjacent node to the ith node as created by get_adjlist.
`n`	integer specifying the maximum number of productions. Function may return fewer than `n`.
`pjump`	numeric specifying the probability of a jump.
`type`	integer controlling network start and jump nodes. For `type = 0` the process selects the start node and any jump nodes proportional to their degree. For `type = 1` the process selects a random node to serve both as the start node and the jump node. For `type = 2` the process selects the start and any jump nodes uniformly at random.

Function produces verbal fluency data via a switcher random walk process that traverses the network by selecting a neighbor with probability 1-pjump or jumps to a random place in the network with probability pjump. Where the random walk process enters the network and where it jumps to is further controlled by type. Neighbors are always selected uniformly.

In contrast to fluency, this function does not check at every step whether the sampled neighbor is already in the list of productions. Instead, ffluency simply returns the list of unique productions. This means that if repetitions occur ffluency will produce sequences of length min(n * 3 - k, n) where k is the number of repeptitions.

Integer vector containing the indices of the fluency productions. Indices refer to the row of the item in the original adjacency matrix. See get_adjlist.

Wulff, D. U., Hills, T., & Mata, R. (2018, October 29). Structural differences in the semantic networks of younger and older adults. https://doi.org/10.31234/osf.io/s73dp

Goni, J., Martincorena, I., Corominas-Murtra, B., Arrondo, G., Ardanza- Trevijano, S., & Villoslada, P. (2010). Switcher-random-walks: A cognitive- inspired mechanism for network exploration. International Journal of Bifurcation and Chaos, 20(03), 913-922.

# generate watts strogatz graph
network = grow_ws(n = 100, k = 10)

# create verbal fluency sequences
one_ffluency(get_adjlist(network),  10)

# create verbal fluency sequence
# with high jump probability
one_ffluency(get_adjlist(network), 10, pjump = .5)