Structual Topic Model Error in prevalence of R stm package

Question

Anyone who knows how to run stm package??

library(splines)

poliblogPrevFit <- stm(documents = out$documents, vocab = out$vocab, K = 20, prevalence =~ rating + s(day), max.em.its = 75, data = out$meta, init.type = "Spectral")

Error in makeTopMatrix(prevalence, data) : Error creating model matrix.
                 This could be caused by many things including
                 explicit calls to a namespace within the formula.
                 Try a simpler formula. 

Not sure what should I do to solve this problem?

library(splines)

poliblogPrevFit <- stm(documents = out$documents, vocab = out$vocab, K = 20, prevalence =~ Rating + Review Date, max.em.its = 75, data = out$meta, init.type = "Spectral")

Rating, Review Date; in my dataset

Error in stm(documents = out$documents, vocab = out$vocab, K = 20, prevalence = ~data$Review.Date +  : 
  number of observations in content covariate (2642) prevalence covariate (2650) and documents (2642) are not all equal.

How should I run it with prevalence? Thanks

question from:https://stackoverflow.com/questions/65948498/structual-topic-model-error-in-prevalence-of-r-stm-package

Answer 1

Waitting for answers