Ompr v1

.github/workflows/R-CMD-check.yaml

@@ -0,0 +1,46 @@
+# Workflow derived from https://github.com/r-lib/actions/tree/master/examples
+# Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+name: R-CMD-check
+
+jobs:
+  R-CMD-check:
+    runs-on: ${{ matrix.config.os }}
+
+    name: ${{ matrix.config.os }} (${{ matrix.config.r }})
+
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - {os: macOS-latest,   r: 'release'}
+          - {os: windows-latest, r: 'release'}
+          - {os: ubuntu-latest,   r: 'devel', http-user-agent: 'release'}
+          - {os: ubuntu-latest,   r: 'release'}
+          - {os: ubuntu-latest,   r: 'oldrel-1'}
+
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+      R_KEEP_PKG_SOURCE: yes
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: r-lib/actions/setup-pandoc@v1
+
+      - uses: r-lib/actions/setup-r@v1
+        with:
+          r-version: ${{ matrix.config.r }}
+          http-user-agent: ${{ matrix.config.http-user-agent }}
+          use-public-rspm: true
+
+      - uses: r-lib/actions/setup-r-dependencies@v1
+        with:
+          extra-packages: rcmdcheck
+
+      - uses: r-lib/actions/check-r-package@v1

.gitignore

@@ -1,6 +1,7 @@
 # History files
 .Rhistory
 .Rapp.history
+.DS_Store
 
 # Session Data files
 .RData

DESCRIPTION

@@ -12,21 +12,35 @@ Description: Model mixed integer linear programs in an algebraic way directly in
              documentation and examples.
 License: GPL-3
 LazyData: TRUE
-RoxygenNote: 7.1.1
+RoxygenNote: 7.1.2
 Encoding: UTF-8
 URL: https://github.com/dirkschumacher/ompr
 BugReports: https://github.com/dirkschumacher/ompr/issues
 Depends: R (>= 3.2.0)
 Imports:
-  lazyeval,
-  progress,
-  rlang (>= 0.2.0),
-  methods,
-  data.table,
-  Rcpp (>= 0.12.12),
-  Matrix
+    lazyeval,
+    progress,
+    rlang (>= 0.2.0),
+    listcomp (>= 0.3.0.9000),
+    methods,
+    data.table,
+    Matrix,
+    fastmap
 Suggests:
   magrittr,
   testthat
+Remotes:
+  dirkschumacher/listcomp
 ByteCompile: Yes
-LinkingTo: Rcpp
+Collate:
+    'abstract-model-impl.R'
+    'helper.R'
+    'linear-optimization-model-linear-functions.R'
+    'linear-optimization-model-impl.R'
+    'linear-optimization-model-linear-constraints.R'
+    'model-api.R'
+    'milp-impl.R'
+    'milp-linearopt-variables.R'
+    'ompr-package.R'
+    'solution-api.R'
+    'solution-impl.R'

NAMESPACE

@@ -1,37 +1,44 @@
 # Generated by roxygen2: do not edit by hand
 
+S3method(add_constraint,abstract_model)
+S3method(add_constraint,linear_optimization_model)
+S3method(add_constraint_,linear_optimization_model)
 S3method(add_constraint_,milp_model)
-S3method(add_constraint_,optimization_model)
+S3method(add_variable,abstract_model)
+S3method(add_variable,linear_optimization_model)
+S3method(add_variable_,linear_optimization_model)
 S3method(add_variable_,milp_model)
-S3method(add_variable_,optimization_model)
+S3method(extract_constraints,linear_optimization_model)
 S3method(extract_constraints,milp_model)
-S3method(extract_constraints,optimization_model)
 S3method(get_column_duals,solution)
 S3method(get_row_duals,solution)
 S3method(get_solution_,solution)
+S3method(nconstraints,linear_optimization_model)
 S3method(nconstraints,milp_model)
-S3method(nconstraints,optimization_model)
+S3method(nvars,linear_optimization_model)
 S3method(nvars,milp_model)
-S3method(nvars,optimization_model)
+S3method(objective_function,linear_optimization_model)
 S3method(objective_function,milp_model)
-S3method(objective_function,optimization_model)
 S3method(objective_value,solution)
+S3method(print,linear_optimization_model)
 S3method(print,milp_model)
-S3method(print,optimization_model)
 S3method(print,solution)
+S3method(set_bounds,abstract_model)
+S3method(set_bounds,linear_optimization_model)
+S3method(set_bounds_,linear_optimization_model)
 S3method(set_bounds_,milp_model)
-S3method(set_bounds_,optimization_model)
+S3method(set_objective,abstract_model)
+S3method(set_objective,linear_optimization_model)
+S3method(set_objective_,linear_optimization_model)
 S3method(set_objective_,milp_model)
-S3method(set_objective_,optimization_model)
-S3method(solve_model,milp_model)
-S3method(solve_model,optimization_model)
+S3method(solve_model,abstract_model)
 S3method(solver_status,solution)
+S3method(variable_bounds,linear_optimization_model)
 S3method(variable_bounds,milp_model)
-S3method(variable_bounds,optimization_model)
+S3method(variable_keys,linear_optimization_model)
 S3method(variable_keys,milp_model)
-S3method(variable_keys,optimization_model)
+S3method(variable_types,linear_optimization_model)
 S3method(variable_types,milp_model)
-S3method(variable_types,optimization_model)
 export(MILPModel)
 export(MIPModel)
 export(add_constraint)
@@ -57,11 +64,26 @@ export(set_objective_)
 export(solve_model)
 export(solver_status)
 export(sum_expr)
+export(sum_over)
 export(variable_bounds)
 export(variable_keys)
 export(variable_types)
 import(data.table)
-importFrom(Rcpp,sourceCpp)
+importFrom(Matrix,sparseMatrix)
+importFrom(Matrix,sparseVector)
+importFrom(fastmap,fastmap)
+importFrom(lazyeval,as.lazy)
+importFrom(lazyeval,as.lazy_dots)
+importFrom(lazyeval,lazy_dots)
+importFrom(listcomp,gen_list)
 importFrom(methods,new)
+importFrom(rlang,abort)
+importFrom(rlang,caller_env)
+importFrom(rlang,enquo)
+importFrom(rlang,enquos)
+importFrom(rlang,eval_bare)
+importFrom(rlang,get_expr)
+importFrom(rlang,new_environment)
+importFrom(rlang,new_quosure)
+importFrom(rlang,syms)
 importFrom(stats,setNames)
-useDynLib(ompr)

NEWS.md

@@ -1,5 +1,30 @@
 # ompr (development version)
 
+## General changes
+
+* Rewrote the `MIPModel`. It should now be faster, more maintainable,
+  more stable and it has fewer bugs.
+* `sum_over` shall now be used in favor of `sum_expr` in the `MIPModel`
+
+## Bugfixes
+
+* Fixed a bug where using the index "e" in `sum_expr` failed (#327)
+* Fixed a bug where coefficients that came after the variable in the
+  expression would sometimes not be correctly parsed (#265)
+* Fixed a bug where `add_variable` failed if indexes were in the wrong order
+  (#266)
+
+## Deprecations
+
+All listed functions will be removed at some point the future.
+
+* `sum_expr` shall not be used anymore. Please use `sum_over` instead.
+* `MIPLModel` will likely be removed from the package, as the vectorized
+  approach did lead to some problems. Please use `MIPModel` instead.
+* `add_variable_`, `add_constraint_`, `set_objective_`, `set_bounds` and
+  `get_solution_` are not needed anymore with the new `MIPModel` as it is
+  powered by `rlang`.
+
 # ompr 0.8.1
 
 ## General changes

R/abstract-model-impl.R

@@ -0,0 +1,63 @@
+#' @export
+add_variable.abstract_model <- function(.model, .variable, ...,
+                                        type = "continuous",
+                                        lb = -Inf, ub = Inf) {
+  add_variable_(
+    .model = .model,
+    .variable = lazyeval::as.lazy(
+      substitute(.variable), parent.frame()
+    ),
+    type = type,
+    lb = lb,
+    ub = ub,
+    .dots = lazyeval::lazy_dots(...)
+  )
+}
+
+#' @export
+set_objective.abstract_model <- function(model, expression,
+                                         sense = c("max", "min")) {
+  set_objective_(model,
+    expression = lazyeval::as.lazy(
+      substitute(expression),
+      parent.frame()
+    ),
+    sense = sense
+  )
+}
+
+#' @export
+add_constraint.abstract_model <- function(.model, .constraint_expr, ...,
+                                          .show_progress_bar = TRUE) {
+  add_constraint_(.model, lazyeval::as.lazy(
+    substitute(.constraint_expr),
+    parent.frame()
+  ),
+  .dots = lazyeval::lazy_dots(...),
+  .show_progress_bar = .show_progress_bar
+  )
+}
+
+#' @export
+set_bounds.abstract_model <- function(.model, .variable, ...,
+                                      lb = NULL, ub = NULL) {
+  set_bounds_(
+    .model = .model,
+    .variable = lazyeval::as.lazy(
+      substitute(.variable), parent.frame()
+    ),
+    lb = lb,
+    ub = ub,
+    .dots = lazyeval::lazy_dots(...)
+  )
+}
+
+#' @export
+solve_model.abstract_model <- function(model, solver) {
+  if (!is.function(solver)) {
+    stop(paste0("Solver is not a function Model -> Solution.\n",
+                "Take a look at the examples on the website on how to call",
+                " solve_model."))
+  }
+  solver(model)
+}