curves_concentration_max and ec error

description

• ec() raises an error if the requested curve is too short to calculate the result.
• ecxsys() gains a new argument curves_concentration_max which sets the maximum concentration for the curves.
• Improve merge request template.
• Update readme example.

system details

• RStudio Version: 1.2.5033
• R Version: 3.6.2
• OS Version: Windows 10 x64 (build 17763)

checklist

• This merge introduces new features.
  • new features are documented
  • new features have tests
• update documentation including examples (if necessary)
• update and polish NEWS.md
• update version in DESCRIPTION
• update date in DESCRIPTION
• no remaining TODO, FIXME, or debug prints anywhere in the source files
• devtools::document()
• devtools::check() without errors or warnings

.gitlab/merge_request_templates/merge_into_master.md

@@ -18,14 +18,13 @@ Comment on any notes that come up during devtools::check().
 
 ### checklist
 <!-- Please check `[x]` the applicable boxes. -->
-* [ ] This merge includes bug fixes or changes in the functionality of the package (whether they are user-visible or not).
-    * [ ]  update documentation including examples (if necessary)
-    * [ ]  update and polish NEWS.md
-    * [ ]  update version in DESCRIPTION
-    * [ ]  update date in DESCRIPTION
 * [ ]  This merge introduces new features.
     * [ ]  new features are documented
     * [ ]  new features have tests
+* [ ]  update documentation including examples (if necessary)
+* [ ]  update and polish NEWS.md
+* [ ]  update version in DESCRIPTION
+* [ ]  update date in DESCRIPTION
 * [ ]  no remaining TODO, FIXME, or debug prints anywhere in the source files
 * [ ]  `devtools::document()`
 * [ ]  `devtools::check()` without errors or warnings