@@ -1,3 +1,37 @@

## Resubmission

This is a resubmission. In this version I have done the changes in the following three aspects which I got from CRAN staff:

1. `If there are references describing the methods in your package, please

add these in the description field of your DESCRIPTION file in the form

authors (year) <doi:...>

authors (year) <arXiv:...>

authors (year, ISBN:...)

or if those are not available: <https:...>

with no space after 'doi:', 'arXiv:', 'https:' and angle brackets for

auto-linking.

(If you want to add a title as well please put it in quotes: "Title")`

* Added the reference paper with the format above in DESCRIPTION file.

2. `\dontrun{} should only be used if the example really cannot be executed

(e.g. because of missing additional software, missing API keys, ...) by

the user. That's why wrapping examples in \dontrun{} adds the comment

('# Not run:') as a warning for the user.

Does not seem necessary. Please unwrap the examples if they are executable in < 5 sec, or create

additionally small toy examples to allow automatic testing.

(You could also replace \dontrun{} with \donttest, if it takes longer

than 5 sec to be executed, but it would be preferable to have automatic

checks for functions. Otherwise, you can also write some tests.)`

* Changed all the examples, there is no \dontrun{} in examples' scripts, all examples can be run.

3. `Please ensure that your functions do not write by default or in your

examples/vignettes/tests in the user's home filespace (including the

package directory and getwd()). This is not allowed by CRAN policies. In

your examples/vignettes/tests you can write to tempdir().`

* Changed the vignette file, won't write anything in local.

## Test environments

* local Ubuntu 20.04.1, R 4.1.0

* win-builder (release, devel)