R: Wrapper to launch LDAvis topic browser.

toLDAvis {stm} | R Documentation

## Wrapper to launch LDAvis topic browser.

### Description

Tool for exploring topic/word distributions using LDAvis topic browser.

### Usage

    toLDAvis(
      mod,
      docs,
      R = 30,
      plot.opts = list(xlab = "PC1", ylab = "PC2"),
      lambda.step = 0.1,
      out.dir = tempfile(),
      open.browser = interactive(),
      as.gist = FALSE,
      reorder.topics = TRUE
    )

### Arguments

`mod` | STM object. Output from stm function.
`docs` | Documents object passed to `stm` in this package's standard format (see the documentation in `stm`.
`R` | Passed to `createJSON` "integer, the number of terms to display in the barcharts of the interactive viz. Default is 30. Recommended to be roughly between 10 and 50."
`plot.opts` | Passed to `createJSON` "a named list used to customize various plot elements. By default, the x and y axes are labeled 'PC1' and 'PC2' (principal components 1 and 2), since jsPCA is the default scaling method. "
`lambda.step` | Passed to `createJSON` "a value between 0 and 1. Determines the interstep distance in the grid of lambda values over which to iterate when computing relevance. Default is 0.01. Recommended to be between 0.01 and 0.1."
`out.dir` | Passed to `serVis` "directory to store html/js/json files."
`open.browser` | Passed to `serVis` "Should R open a browser? If yes, this function will attempt to create a local file server via the servr package. This is necessary since the javascript needs to access local files and most browsers will not allow this."
`as.gist` | Passed to `serVis` "should the vis be uploaded as a gist? Will prompt for an interactive login if the GITHUB_PAT environment variable is not set"
`reorder.topics` | Passed to `createJSON` "Should LDAvis re-order the K topics in order of decreasing proportion? Default is True"

### Details

Tool for exploring topic/word distributions using LDAvis topic browser. Development build of LDAvis available at https://github.com/cpsievert/LDAvis or download from CRAN. Note: LDAvis may renumber the topics.

### References

Carson Sievert and Kenny Shirley. LDAvis: Interactive Visualization of Topic Models. R package version 0.3.1. https://github.com/cpsievert/LDAvis

### Examples

    mod <- stm(poliblog5k.docs, poliblog5k.voc, K=25,
               prevalence=~rating, data=poliblog5k.meta,
               max.em.its=2, init.type="Spectral")
    #please don't run a model with 2 iterations
    #this is done here to make it run quickly.
    toLDAvis(mod=mod, docs=poliblog5k.docs)

[Package stm version 1.3.6 Index]