错误：“glmnet_softmax”不是从“命名空间：glmnet”导出的对象

Question

I am trying to use this tutorial https://github.com/wvictor14/planet#infer-ethnicity and get the following error message, even when using the test data provided:

pl_infer_ethnicity(pl_betas)
[1] "1860 of 1860 predictors present."
Loading required package: Matrix
Error: 'glmnet_softmax' is not an exported object from 'namespace:glmnet'

I've tried re-installing individual packages and running in a new version or R and get the same error. I believe this is related to other errors posted with a recent update in glmnet. Any tips on how to resolve?

sessionInfo()
R version 3.6.2 (2019-12-12)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 17134)

Matrix products: default

locale:
[1] LC_COLLATE=English_United States.1252 
[2] LC_CTYPE=English_United States.1252   
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C                          
[5] LC_TIME=English_United States.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] Matrix_1.2-18 planet_0.1.0 

loaded via a namespace (and not attached):
 [1] lattice_0.20-38  codetools_0.2-16 glmnet_3.0-2     foreach_1.4.7   
 [5] crayon_1.3.4     grid_3.6.2       magrittr_1.5     pillar_1.4.2    
 [9] rlang_0.4.2      remotes_2.1.0    iterators_1.0.12 tools_3.6.2     
[13] compiler_3.6.2   pkgconfig_2.0.3  shape_1.4.4      tibble_2.1.3    

Answer 1

I don't know why it would have worked in the first place; the NEWS file for glmnet doesn't say anything one way or the other about glmnet_softmax (eg, it does not say " glmnet_softmax is no longer exported" or anything like that ...)

In any case, this is a non-exported function from the glmnet package. It is referred to here in the tutorial code.

If you can change that line of code to refer to glmnet:::glmnet_softmax (ie, three colons rather than two), that should suffice ( ::: allows you to access a non-exported function).