Where can I find R function expandDates?

I have received some software in R to run which calls on many Packages/Libraries not specified in the code. I have been tracking down the functions one by one in various packages but cannot find one function:

expandDates

I tried packages like Chron or other time/date processing packages with no luck from: https://cran.r-project.org/web/packages/available_packages_by_name.html

The call looks like this:

tte_increm <- expandDates(start_date = start_date, end_date = end_date)$time.days[['numTotDays']]/365 start_date <- '2017-09-01' end_date <- '2018-12-31'

Help, please!

Could this be an internal function in the "software"?

And when you say you "received some software in R" do you mean someone sent you a bunch of scripts/functions that you need to source before you run?

Does the code run?

Is it possible that you didn't receive all of the files?

@andrepoorman I see.
I have a big problem with code that has a ton of library statements for the exact reason you have encountered. All functions (other than maybe shiny, shinydashboard) should be explicitly referenced using the package namespace, eg plotly::add_lines

Anyway, I cloned the repo, but can't install the package aligne2. Its not available for my version of R (3.6.1 ). And i can't find documentation on the web. Could you find anything?

Saying that, i see the function you are referring to in the helper file. I still think this function is a user defined function that wasn't included in the repo. I see you made an issue in the developers repo. I was going to suggest that!

It looks like expandDates it is calculating some sort of time increment. I wonder if you can just take (end-start)/365 and see if the app behaves.

Good luck

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Hi
All the code available actually comes from GitHub: github.com/andrepoorman/PFE
It uses a number of functions from Libraries not specified by the author. It's possible "expandDates" is user defined & the code not included, but I tracked down all the other functions to various CRAN packages eventually.