Reports: use dicts instead of lists

src/reports/centers.jl

@@ -31,14 +31,14 @@ function centers_report(model)::DataFrame
         end
         push!(
             df,
-            [
-                c.name,
-                t,
-                input_name,
-                _round(input),
-                _round(revenue),
-                _round(c.operating_cost[t]),
-            ],
+            Dict(
+                "center" => c.name,
+                "year" => t,
+                "input product" => input_name,
+                "input amount (tonne)" => _round(input),
+                "revenue (\$)" => _round(revenue),
+                "operating cost (\$)" => _round(c.operating_cost[t]),
+            ),
         )
     end
     return df
@@ -72,15 +72,15 @@ function center_outputs_report(model)::DataFrame
         end
         push!(
             df,
-            [
-                c.name,
-                m.name,
-                t,
-                _round(collected),
-                _round(disposed),
-                _round(collection_cost),
-                _round(disposal_cost),
-            ],
+            Dict(
+                "center" => c.name,
+                "output product" => m.name,
+                "year" => t,
+                "amount collected (tonne)" => _round(collected),
+                "amount disposed (tonne)" => _round(disposed),
+                "collection cost (\$)" => _round(collection_cost),
+                "disposal cost (\$)" => _round(disposal_cost),
+            ),
         )
     end
     return df

src/reports/plants.jl

@@ -29,15 +29,15 @@ function plants_report(model)::DataFrame
         var_operating_cost = input * p.capacities[1].var_operating_cost[t]
         push!(
             df,
-            [
-                p.name,
-                t,
-                operational,
-                _round(input),
-                _round(opening_cost),
-                _round(fix_operating_cost),
-                _round(var_operating_cost),
-            ],
+            Dict(
+                "plant" => p.name,
+                "year" => t,
+                "operational?" => operational,
+                "input amount (tonne)" => _round(input),
+                "opening cost (\$)" => _round(opening_cost),
+                "fixed operating cost (\$)" => _round(fix_operating_cost),
+                "variable operating cost (\$)" => _round(var_operating_cost),
+            ),
         )
     end
     return df
@@ -61,7 +61,14 @@ function plant_outputs_report(model)::DataFrame
         disposal_cost = p.disposal_cost[m][t] * disposed
         push!(
             df,
-            [p.name, m.name, t, _round(produced), _round(disposed), _round(disposal_cost)],
+            Dict(
+                "plant" => p.name,
+                "output product" => m.name,
+                "year" => t,
+                "amount produced (tonne)" => _round(produced),
+                "amount disposed (tonne)" => _round(disposed),
+                "disposal cost (\$)" => _round(disposal_cost),
+            ),
         )
     end
     return df

src/reports/transportation.jl

@@ -36,17 +36,17 @@ function transportation_report(model)::DataFrame
         end
         push!(
             df,
-            [
-                p1.name,
-                p2.name,
-                m.name,
-                t,
-                _round(amount),
-                _round(distance),
-                _round(tr_cost),
-                _round(revenue),
-                _round(collection_cost),
-            ],
+            Dict(
+                "source" => p1.name,
+                "destination" => p2.name,
+                "product" => m.name,
+                "year" => t,
+                "amount sent (tonne)" => _round(amount),
+                "distance (km)" => _round(distance),
+                "transportation cost (\$)" => _round(tr_cost),
+                "center revenue (\$)" => _round(revenue),
+                "center collection cost (\$)" => _round(collection_cost),
+            ),
         )
     end
     return df