tm.plugin.sentiment issue. Error: could not find function “DMetaData”

问题

I have tried countless times in different ways to run the score() function in the tm.plugin.sentiment package in R but I keep getting the same error. This is a sample code:

    library(tm.plugin.webmining)
    library(tm.plugin.sentiment)
    cor <- WebCorpus(GoogleFinanceSource("NASDAQ:MSFT"))
    tm_tag_score <- tm_term_score
    corpus <- score(cor)

This is the error I get:

    Error in score(cor) : could not find function "DMetaData"

回答1:

Looks like it's caused by the removal of the DMetaData function from the tm package. Refer to this issue on github:

https://github.com/mannau/tm.plugin.sentiment/issues/1

upgrading to the latest version of tm.plugin.sentiment from github using devtools fixed this for me.

library(devtools)
install_github("mannau/tm.plugin.sentiment")

来源：https://stackoverflow.com/questions/24612080/tm-plugin-sentiment-issue-error-could-not-find-function-dmetadata