Thanks for the great package. I notice a little problem while running it for the first time.

I installed the package through devtools and loaded it in a clean environment. However, the function cmdist could not finish to run since .prepINPUT would get stuck at line 24, where it calls str_trim() from stringr, which is not loaded. Once I load stringr, everything runs smoothly. Likely, this is not what should happen.

Hi,

I found that the get_centroids() function always returns the same values no matter which terms are used.
I looked at your code and I believe the issue might be here:

get vectors for words in column 1

        v <- wv[ terms[, 1, drop=TRUE]  , , drop = FALSE]

It subsets the first x terms of the word embedding matrix instead of the terms passed to the function.
Similarly, the get_directions() function only works if I pass a matrix of terms. A data frame returns 0 for all dimensions.

An example:

library(CMDist)
library(word2vec)

#---Load embedding vectors
w2v <- read.wordvectors("/GoogleNews-vectors-negative300.bin",type = "bin",n = 20)


#---get_centroids()
terms_1 <- c("in","with","from")
terms_2 <- c("said","was","are")


centroid_t1 <- get_centroid(terms = terms_1,wv = w2v)
centroid_t2 <- get_centroid(terms = terms_2,wv = w2v)

centroid_t1 == centroid_t2

#---get_directions()
pairs_1 <-   data.frame(additions  = terms_1,
                        substracts = terms_2)

pairs_2 <-   as.matrix(data.frame(additions  = terms_1,
                        substracts = terms_2))

directions_1 <- get_direction(pairs = pairs_1,w2v)
directions_2 <- get_direction(pairs = pairs_2,w2v)

I get an error with parallelization on Mac OS High Sierra using R version 4.0.2. When I set parallel to true and threads to four, I get the following output.

Error in makePSOCKcluster(names = spec, ...) : 
  Cluster setup failed. 4 of 4 workers failed to connect.

It appears this is a known issue with {parallel}.

Hi there. I enjoyed your article and was looking forward to using the technique. However, I'm encountering some persistent errors with what I'm guessing is the text2vec implementation. Mainly, I can't get CMDist to run anymore -- whereas in the past, I got the replication materials up and running.

There's a particularly annoying issue with this following error:
Error in .subset2(public_bind_env, "initialize")(...) : is.matrix(wv) is not TRUE

Which shouldn't be true given that my wv variable is is.matrix(word_vectors) [1] TRUE . I'd appreciate your thoughts on troubleshooting this issue.