add reverse dependency tests

.Rbuildignore

@@ -7,3 +7,4 @@
 ^data-raw$
 ^docs$
 ^_pkgdown\.yml$
+^revdep$

.gitignore

@@ -2,3 +2,4 @@
 .Rhistory
 .RData
 .DS_Store
+/revdep/.cache.rds

cran-comments.md

@@ -1,11 +1,31 @@
 ## Test environments
-* local OS X (10.12.5) install, R 3.4.0
-* ubuntu 12.04 (on travis-ci), R 3.4.0 and development version
-* win-builder (devel and release)
+1. local macOS (10.13.3) install, R 3.4.3
+2. ubuntu 14.04.5 LTS (on travis-ci) R 3.4.3 and development version
+3. win-builder (devel and release)
 
 ## R CMD check results
-For macOS and ubuntu there were no ERRORs, WARNINGs or NOTEs.
 
+### 1. macOS
+For macOS there was a warning when building the tar file:
+
+* building ‘xpose4_4.6.0.9002.tar.gz’ 
+Warning: invalid uid value replaced by that for user 'nobody'
+Warning: invalid gid value replaced by that for user 'nobody'
+
+Which seems to be because my UID on macOS is too large.  
+I am not sure how to change my UID without messing lots of other things up.
+I assume this Warning can be ignored.
+
+Otherwise we have:
+
+R CMD check results
+0 errors | 0 warnings | 0 notes
+R CMD check succeeded
+
+### 2. ubuntu
+For ubuntu there were no ERRORs, WARNINGs or NOTEs.
+
+### 3. win-builder
 For win-builder release and devel versions there was one note:
 
 * checking CRAN incoming feasibility ... NOTE
@@ -21,4 +41,4 @@ a the word "covariate", both of which are spelled correctly.
 
 ## Downstream dependencies
 I have also run R CMD check on downstream dependencies of xpose4. 
-All packages passed.
+No ERRORs or WARNINGs were found.

revdep/README.md

@@ -0,0 +1,27 @@
+# Setup
+
+## Platform
+
+|setting  |value                        |
+|:--------|:----------------------------|
+|version  |R version 3.4.3 (2017-11-30) |
+|system   |x86_64, darwin15.6.0         |
+|ui       |RStudio (1.1.423)            |
+|language |(EN)                         |
+|collate  |en_US.UTF-8                  |
+|tz       |Europe/Stockholm             |
+|date     |2018-03-08                   |
+
+## Packages
+
+|package |*  |version |date       |source                              |
+|:-------|:--|:-------|:----------|:-----------------------------------|
+|xpose4  |   |4.6.1   |2018-03-08 |local (UUPharmacometrics/xpose4@NA) |
+
+# Check results
+
+0 packages
+
+
+
+

revdep/check.R

@@ -0,0 +1,5 @@
+library("devtools")
+
+revdep_check()
+revdep_check_save_summary()
+revdep_check_print_problems()

revdep/problems.md

@@ -0,0 +1,27 @@
+# Setup
+
+## Platform
+
+|setting  |value                        |
+|:--------|:----------------------------|
+|version  |R version 3.4.3 (2017-11-30) |
+|system   |x86_64, darwin15.6.0         |
+|ui       |RStudio (1.1.423)            |
+|language |(EN)                         |
+|collate  |en_US.UTF-8                  |
+|tz       |Europe/Stockholm             |
+|date     |2018-03-08                   |
+
+## Packages
+
+|package |*  |version |date       |source                              |
+|:-------|:--|:-------|:----------|:-----------------------------------|
+|xpose4  |   |4.6.1   |2018-03-08 |local (UUPharmacometrics/xpose4@NA) |
+
+# Check results
+
+0 packages with problems
+
+
+
+

revdep/timing.md

@@ -0,0 +1,5 @@
+# Check times
+
+
+
+