CTM {topicmodels} | R Documentation |
Estimate a CTM model using the VEM algorithm.
CTM(x, k, method = "VEM", control = NULL, model = NULL, ...)
x |
Object of class "DocumentTermMatrix" |
k |
Integer; number of topics |
method |
The method to be used for fitting; currently only
method = "VEM" is supported. |
control |
A named list of the control parameters for estimation
or an object of class "CTM_VEMcontrol" . |
model |
Object of class "CTM" for initialization. |
... |
Optional arguments. Currently not used. |
The C code for CTM from David M. Blei is used to estimate and fit a correlated topic model.
CTM()
returns an object of class
"CTM"
.
Bettina Gruen
Blei D.M., Lafferty J.D. (2007). A Correlated Topic Model of Science. The Annals of Applied Statistics, 1(1), 17-35.
data("AssociatedPress", package = "topicmodels") ctm <- CTM(AssociatedPress[1:20,], k = 2)