Pull Request follow-up for #30: Example and Vignette runtime

[mcaceresb]

This addresses the comments here that the computing time for the examples, tests, and vignette are too long.

• Enclosed the examples in dontrun do they don't run, cutting the runtime.
• Tests only run of HONESTDID_RUN_TESTS=1 is set, as suggested.
• Precomputed the vignette results, as suggested.
  • The vignette looks slightly different but is by and large the same. See here.
  • Results are included them as data in the package. It gets its own documentation
  • The vignette/precompute.R script has all the vignette code and should be updated and re-run if the vignette ever changes. However, it's not included in the package build (see .Rbuildignore).

[mcaceresb]

@jonathandroth Can you test the function on your mac? The tests are failing for OSX but not for Linux somehow. Just wanna double-check there isn't an issue. LMK and I'll merge.

[jonathandroth]

I ran test_base.R (I assume that's what you wanted?) and I get the following error:

── Error (~/Library/CloudStorage/Dropbox/HonestDiD_MauricioGithub/HonestDiD/tests/test_base.R:28:5): HonestDiD base ran with no errors ──
Error in { temp = computeConditionalCS_DeltaSD(betahat = betahat, sigma = sigma, numPrePeriods = numPrePeriods, numPostPeriods = numPostPeriods, l_vec = l_vec, alpha = alpha, M = Mvec[m], hybrid_flag = "ARP") tibble::tibble(lb = base::min(temp$grid[temp$accept == 1]), ub = base::max(temp$grid[temp$accept == 1]), method = "Conditional", Delta = "DeltaSD", M = Mvec[m]) }: task 2 failed - "ℹ In index: 763.
Caused by error in if (sigma_B_dual < 10^(-10)) ...:
! missing value where TRUE/FALSE needed"
Backtrace:
▆

1. └─HonestDiD::createSensitivityResults(...) at HonestDiD/tests/test_base.R:28:4
2. └─... %do% ... at HonestDiD/R/sensitivityresults.R:62:8

3. └─e$fun(obj, substitute(ex), parent.frame(), e$data)
   

Error in reporter$stop_if_needed() : Test failed

[mcaceresb]

@jonathandroth Ok this is fixed. It seems sometimes it overflowed into a numerical zero but it was negative, so sqrt failed. I've accounted for this. I'll merge.