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class_Solution.R
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class_Solution.R
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#' @include internal.R
NULL
#' Solution class
#'
#' Definition for the Solution class.
#'
#' @seealso [new_solution()].
Solution <- R6::R6Class(
"Solution",
public = list(
#' @field id `character` identifier.
id = NA_character_,
#' @field name `character` name of solution.
name = NA_character_,
#' @field visible `logical` value.
visible = NA,
#' @field invisible `numeric` date/time value.
invisible = NA_real_,
#' @field loaded `logical` value.
loaded = NA,
#' @field variable [Variable] object.
variable = NULL,
#' @field pane `character` name.
pane = NA_character_,
#' @field parameters `list` of [Parameter] objects
parameters = NULL,
#' @field statistics `list` of [Statistic] objects
statistics = NULL,
#' @field theme_results `list` of [ThemeResults] objects.
theme_results = NULL,
#' @field weight_results `list` of [WeightResults] objects.
weight_results = NULL,
#' @field include_results `list` of [IncludeResults] objects.
include_results = NULL,
#' @field exclude_results `list` of [ExcludeResults] objects.
exclude_results = NULL,
#' @field hidden `logical` value.
hidden = NA,
#' @description
#' Create a Solution object.
#' @param id `character` value.
#' @param name `character` value.
#' @param variable [Variable] object.
#' @param pane `character` value.
#' @param visible `logical` value.
#' @param invisible `numeric` date/time value.
#' @param loaded `logical` value.
#' @param parameters `list` of [Statistic] objects.
#' @param statistics `list` of [Statistic] objects.
#' @param theme_results `list` of [ThemeResults] objects.
#' @param weight_results `list` of [WeightResults] objects.
#' @param include_results `list` of [IncludeResults] objects.
#' @param exclude_results `list` of [ExcludeResults] objects.
#' @param hidden `logical` value.
#' @return A new Solution object.
initialize = function(id, name, variable, pane, visible, invisible, loaded,
statistics,
parameters,
theme_results,
weight_results,
include_results,
exclude_results,
hidden) {
# assert arguments are valid
assertthat::assert_that(
#### id
assertthat::is.string(id),
assertthat::noNA(id),
#### name
assertthat::is.string(name),
assertthat::noNA(name),
#### variable
inherits(variable, "Variable"),
#### pane
assertthat::is.string(pane),
assertthat::noNA(pane),
#### visible
assertthat::is.flag(visible),
assertthat::noNA(visible),
#### invisible
inherits(invisible, "numeric"),
#### loaded
assertthat::is.flag(loaded),
assertthat::noNA(loaded),
#### parameters
is.list(parameters),
all_list_elements_inherit(parameters, "Parameter"),
#### statistics
is.list(statistics),
all_list_elements_inherit(statistics, "Statistic"),
#### theme results
is.list(theme_results),
all_list_elements_inherit(theme_results, "ThemeResults"),
#### weight results
is.list(weight_results),
all_list_elements_inherit(weight_results, "WeightResults"),
#### include results
is.list(include_results),
all_list_elements_inherit(include_results, "IncludeResults"),
#### exclude results
is.list(exclude_results),
all_list_elements_inherit(exclude_results, "ExcludeResults"),
#### hidden
assertthat::is.flag(hidden),
assertthat::noNA(hidden)
)
# assign fields
self$id <- id
self$name <- name
self$variable <- variable
self$pane <- enc2ascii(pane)
self$visible <- visible
self$invisible <- invisible
self$loaded <- visible # if layer is visible on init, load it
self$parameters <- parameters
self$statistics <- statistics
self$theme_results <- theme_results
self$weight_results <- weight_results
self$include_results <- include_results
self$exclude_results <- exclude_results
self$hidden <- hidden
},
#' @description
#' Generate a `character` summarizing the representation of the object.
#' @param start `character` symbol used to start the setting list.
#' Defaults to `"["`.
#' @param end `character` symbol used to start the setting list.
#' Defaults to `"]"`.
#' @return `character` value.
repr = function(start = "[", end = "]") {
paste0(
self$name,
" ",
start,
paste(
vapply(self$parameters, function(x) x$repr(), character(1)),
collapse = ", "
),
paste(
vapply(self$statistics, function(x) x$repr(), character(1)),
collapse = ", "
),
end,
nl(),
" variable: ", self$variable$repr()
)
},
#' @description
#' Print the object.
#' @param ... not used.
print = function(...) {
message("Solution")
message(" id: ", self$id)
message(" name: ", self$name)
message(" pane: ", self$pane)
message(" visible: ", self$visible)
message(" loaded: ", self$loaded)
message(" invisible: ", self$invisble)
invisible(self)
},
#' @description
#' Get layer names.
#' @return `character` vector.
get_layer_name = function() {
self$name
},
#' @description
#' Get layer index values.
#' @return `character` vector.
get_layer_index = function() {
self$variable$index
},
#' @description
#' Get layer pane class.
#' @return `character` vector.
get_layer_pane = function() {
self$pane
},
#' @description
#' Get solution identifier.
#' @return `character` vector.
get_id = function() {
self$id
},
#' @description
#' Get visible.
#' @return `logical` value.
get_visible = function() {
self$visible
},
#' @description
#' Get invisible.
#' @return `numeric` date/time value.
get_invisible = function() {
self$invisible
},
#' @description
#' Get loaded.
#' @return `logical` value.
get_loaded = function() {
self$loaded
},
#' @description
#' Get hidden.
#' @return `logical` value.
get_hidden = function() {
self$hidden
},
#' @description
#' Get setting.
#' @param name `character` setting name.
#' Available options are `"visible"`.
#' @return Value.
get_setting = function(name) {
assertthat::assert_that(
assertthat::is.string(name),
assertthat::noNA(name),
name %in% c("visible")
)
if (identical(name, "visible")) {
out <- self$get_visible()
} else {
stop(paste0("\"", name, "\" is not a setting"))
}
out
},
#' @description
#' Set new pane.
#' @param id `character` unique identifier.
#' @param index `character` variable index.
#' @return `character` value.
set_new_pane = function(id, index) {
self$pane <- enc2ascii(paste(id, index, sep = "-"))
},
#' @description
#' Set visible.
#' @param value `logical` new value.
set_visible = function(value) {
assertthat::assert_that(
assertthat::is.flag(value),
assertthat::noNA(value)
)
self$visible <- value
if (self$hidden) {
self$visible <- FALSE
}
invisible(self)
},
#' @description
#' Set invisible.
#' @param value `numeric` date/time value.
set_invisible = function(value) {
assertthat::assert_that(
inherits(value, "numeric")
)
self$invisible <- value
if (self$hidden) {
self$invisible <- NA_real_
}
invisible(self)
},
#' @description
#' Set loaded.
#' @param value `logical` new value.
set_loaded = function(value) {
assertthat::assert_that(
assertthat::is.flag(value),
assertthat::noNA(value)
)
self$loaded <- value
if (self$hidden) {
self$loaded <- FALSE
}
invisible(self)
},
#' @description
#' Get summary results.
#' @return [tibble::tibble()] object.
get_summary_results_data = function() {
# compile data
rd <- tibble::as_tibble(plyr::ldply(
self$statistics, function(x) x$get_results_data()))
pd <- tibble::as_tibble(plyr::ldply(
self$parameters, function(x) x$get_results_data()))
pd$status <- unlist(lapply(self$parameters, function(x) x$get_status()))
# prepare statistics data
rd$value_text <- rd$value
rd$value_text <- dplyr::if_else(
!is.na(rd$units) & nchar(rd$units) > 0,
paste(round(rd$value_text,2), rd$units, sep = " "),
paste(round(rd$value_text, 2))) # add units if present
rd$value_text <- dplyr::if_else(
!is.na(rd$proportion),
paste0(rd$value_text, " (", round(rd$proportion*100), "%)"),
rd$value_text
) # add % if present
# prepare parameters data
pd$value_text <- dplyr::case_when(
pd$status == FALSE ~ "Not specified",
pd$status == TRUE & nchar(pd$units) > 0 ~ paste0(pd$value, pd$units),
TRUE ~ "On"
)
# combine data
x <- dplyr::bind_rows(pd, rd)
# return formatted table
tibble::tibble(
`Name` = x$name,
`Value` = x$value_text
)
},
#' @description
#' Get theme results.
#' @return [tibble::tibble()] object.
get_theme_results_data = function() {
# compile data
x <- tibble::as_tibble(plyr::ldply(
self$theme_results, function(x) x$get_results_data()
))
# return formatted table
tibble::tibble(
Theme = x$name,
Feature = x$feature_name,
Status = dplyr::if_else(x$feature_status, "Enabled", "Disabled"),
`Total (units)` = paste(
round(x$feature_total_amount, 2), x$units
),
`Current (%)` = round(x$feature_current_held * 100, 2),
`Current (units)` = paste(
round(x$feature_current_held * x$feature_total_amount, 2),
x$units
),
`Goal (%)` = round(x$feature_status * x$feature_goal * 100, 2),
`Goal (units)` = paste(
round(
x$feature_status * x$feature_goal * x$feature_total_amount, 2
),
x$units
),
`Solution (%)` = round(x$feature_solution_held * 100, 2),
`Solution (units)` = paste(
round(x$feature_solution_held * x$feature_total_amount, 2),
x$units
),
`Met` = dplyr::case_when(
!x$feature_status ~ "NA",
(x$feature_solution_held >=
(x$feature_status * x$feature_goal)) ~ "Yes",
TRUE ~ "No"
)
)
},
#' @description
#' Get weight results.
#' @return [tibble::tibble()] object.
get_weight_results_data = function() {
# compile results
if (length(self$weight_results) > 0) {
## if weights are present, then use result
### extract results
x <- tibble::as_tibble(plyr::ldply(
self$weight_results, function(x) x$get_results_data()
))
### format results
out <- tibble::tibble(
Weight = x$name,
Status = dplyr::if_else(x$status, "Enabled", "Disabled"),
Factor = round(x$factor, 2),
`Total (units)` = paste(round(x$total, 2), x$units),
`Current (%)` = round(x$current * 100, 2),
`Current (units)` = paste(round(x$current * x$total, 2), x$units),
`Solution (%)` = round(x$held * 100, 2),
`Solution (units)` = paste(round(x$held * x$total, 2), x$units),
)
} else {
## if no weights are present, then use return
out <- tibble::tibble(
`Description` = "No weights specified"
)
}
# return results
out
},
#' @description
#' Get include results.
#' @return [tibble::tibble()] object.
get_include_results_data = function() {
# compile results
if (length(self$include_results) > 0) {
## if weights are present, then use result
### extract results
x <- tibble::as_tibble(plyr::ldply(
self$include_results, function(x) x$get_results_data()
))
### format results
out <- tibble::tibble(
Include = x$name,
Status = dplyr::if_else(x$status, "Enabled", "Disabled"),
`Total (units)` = paste(round(x$total, 2), x$units),
`Solution (%)` = round(x$held * 100, 2),
`Solution (units)` = paste(round(x$held * x$total, 2), x$units)
)
} else {
## if no weights are present, then use return
out <- tibble::tibble(
`Description` = "No includes specified"
)
}
# return results
out
},
#' @description
#' Get exclude results.
#' @return [tibble::tibble()] object.
get_exclude_results_data = function() {
# compile results
if (length(self$exclude_results) > 0) {
## if excludes are present, then use result
### extract results
x <- tibble::as_tibble(plyr::ldply(
self$exclude_results, function(x) x$get_results_data()
))
### format results
out <- tibble::tibble(
Exclude = x$name,
Status = dplyr::if_else(x$status, "Enabled", "Disabled"),
`Total (units)` = paste(round(x$total, 2), x$units),
`Solution (%)` = round(x$held * 100, 2),
`Solution (units)` = paste(round(x$held * x$total, 2), x$units)
)
} else {
## if no weights are present, then use return
out <- tibble::tibble(
`Description` = "No excludes specified"
)
}
# return results
out
},
#' @description
#' Render summary results.
#' @return [DT::datatable()] object.
render_summary_results = function() {
## generate results
x <- self$get_summary_results_data()
## define JS for button
action_js <- htmlwidgets::JS(
"function ( e, dt, node, config ) {",
" $('#summary_results_button')[0].click();",
"}"
)
## render table
DT::datatable(
x,
rownames = FALSE,
escape = FALSE,
editable = FALSE,
selection = "none",
fillContainer = TRUE,
extensions = "Buttons",
options = list(
### align columns
columnDefs = list(
list(className = "dt-left", targets = 0:1)
),
### disable paging
paging = FALSE,
scrollY = "clamp(300px, calc(100vh - 295px), 10000px)",
scrollCollapse = TRUE,
### download button
dom = "Bfrtip",
buttons = list(
list(
extend = "collection",
text = as.character(shiny::icon("file-download")),
title = "Download spreadsheet",
action = action_js
)
)
),
container = htmltools::tags$table(
class = "display",
htmltools::tags$thead(
htmltools::tags$tr(
htmltools::tags$th("Name"),
htmltools::tags$th("Value"),
),
)
)
)
},
#' @description
#' Render theme results.
#' @return [DT::datatable()] object.
render_theme_results = function() {
## generate results
x <- self$get_theme_results_data()
# replace met column values with icons
x$Met <- unname(vapply(x$Met, FUN.VALUE = character(1), function(i) {
if (identical(i, "Yes")) {
out <- htmltools::tags$i(
class = "fa fa-check-circle",
style = "color: #5cb85c"
)
} else if (identical(i, "No")) {
out <- htmltools::tags$i(
class = "fa fa-times-circle",
style = "color: #dc3545"
)
} else {
out <- htmltools::tags$i(
class = "fa fa-dot-circle",
style = "color: #adb5bd"
)
}
as.character(out)
}))
## add in extra column
x$space1 <- " "
x$space2 <- " "
x <- x[, c(seq_len(6), 12, c(7, 8), 13, c(9, 10), 11), drop = FALSE]
## define JS for button
action_js <- htmlwidgets::JS(
"function ( e, dt, node, config ) {",
" $('#theme_results_button')[0].click();",
"}"
)
## wrap text columns
x[[1]] <- wrap_text(x[[1]])
x[[2]] <- wrap_text(x[[2]])
## render table
DT::datatable(
x,
rownames = FALSE,
escape = FALSE,
editable = FALSE,
selection = "none",
fillContainer = TRUE,
extensions = "Buttons",
options = list(
### align columns
columnDefs = list(
list(className = "dt-left", targets = 0:1),
list(className = "dt-center", targets = 2:12),
list(
className = "spacer", "sortable" = FALSE, targets = c(6, 9)
)
),
### disable paging
paging = FALSE,
scrollY = "clamp(300px, calc(100vh - 295px), 10000px)",
scrollCollapse = TRUE,
### download button
dom = "Bfrtip",
buttons = list(
list(
extend = "collection",
text = as.character(shiny::icon("file-download")),
title = "Download spreadsheet",
action = action_js
)
)
),
container = htmltools::tags$table(
class = "display",
htmltools::tags$thead(
htmltools::tags$tr(
htmltools::tags$th(rowspan = 2, "Theme"),
htmltools::tags$th(rowspan = 2, "Feature"),
htmltools::tags$th(rowspan = 2, "Status"),
htmltools::tags$th(rowspan = 2, "Total (units)"),
htmltools::tags$th(
class = "dt-center", colspan = 2, "Current"
),
htmltools::tags$th(rowspan = 2),
htmltools::tags$th(
class = "dt-center", colspan = 2, "Goal"
),
htmltools::tags$th(rowspan = 2),
htmltools::tags$th(
class = "dt-center", colspan = 2, "Solution"
),
htmltools::tags$th(rowspan = 2, "Met"),
),
htmltools::tags$tr(
htmltools::tags$th("(%)"),
htmltools::tags$th("(units)"),
htmltools::tags$th("(%)"),
htmltools::tags$th("(units)"),
htmltools::tags$th("(%)"),
htmltools::tags$th("(units)"),
)
)
)
)
},
#' @description
#' Render weight results.
#' @return [DT::datatable()] object.
render_weight_results = function() {
# generate table
x <- self$get_weight_results_data()
# wrap text columns
x[[1]] <- wrap_text(x[[1]])
# add in extra column
if (ncol(x) > 1) {
x$space1 <- " "
x <- x[, c(seq_len(6), 9, c(7, 8)), drop = FALSE]
}
# define JS for button
action_js <- htmlwidgets::JS(
"function ( e, dt, node, config ) {",
" $('#weight_results_button')[0].click();",
"}"
)
# define container
if (ncol(x) > 1) {
container <- htmltools::tags$table(
class = "display",
htmltools::tags$thead(
htmltools::tags$tr(
htmltools::tags$th(rowspan = 2, "Weight"),
htmltools::tags$th(rowspan = 2, "Status"),
htmltools::tags$th(rowspan = 2, "Factor"),
htmltools::tags$th(rowspan = 2, "Total (units)"),
htmltools::tags$th(
class = "dt-center", colspan = 2, "Current"
),
htmltools::tags$th(rowspan = 2),
htmltools::tags$th(
class = "dt-center", colspan = 2, "Solution"
)
),
htmltools::tags$tr(
lapply(rep(c("(%)", "(units)"), 2), htmltools::tags$th)
)
)
)
} else {
container <- rlang::missing_arg()
}
# define columns
if (ncol(x) > 1) {
column_defs <- list(
list(className = "dt-left", targets = 0),
list(className = "dt-center", targets = 1:8),
list(className = "spacer", "sortable" = FALSE, targets = 6)
)
} else {
column_defs <- list(
list(className = "dt-left", targets = 0)
)
}
# render table
DT::datatable(
x,
rownames = FALSE,
escape = FALSE,
editable = FALSE,
selection = "none",
fillContainer = TRUE,
extensions = "Buttons",
container = container,
options = list(
## align columns
columnDefs = column_defs,
## disable paging
paging = FALSE,
scrollY = "clamp(300px, calc(100vh - 295px), 10000px)",
scrollCollapse = TRUE,
## download button
dom = "Bfrtip",
buttons = list(
list(
extend = "collection",
text = as.character(shiny::icon("file-download")),
title = "Download spreadsheet",
action = action_js
)
)
)
)
},
#' @description
#' Render include results.
#' @return [DT::datatable()] object.
render_include_results = function() {
# generate table
x <- self$get_include_results_data()
# wrap text columns
x[[1]] <- wrap_text(x[[1]])
# define JS for button
action_js <- htmlwidgets::JS(
"function ( e, dt, node, config ) {",
" $('#include_results_button')[0].click();",
"}"
)
# define container
if (ncol(x) > 1) {
container <- htmltools::tags$table(
class = "display",
htmltools::tags$thead(
htmltools::tags$tr(
htmltools::tags$th(rowspan = 2, "Include"),
htmltools::tags$th(rowspan = 2, "Status"),
htmltools::tags$th(rowspan = 2, "Total (units)"),
htmltools::tags$th(
class = "dt-center", colspan = 2, "Solution"
)
),
htmltools::tags$tr(
lapply(c("(%)", "(units)"), htmltools::tags$th)
)
)
)
} else {
container <- rlang::missing_arg()
}
# define columns
if (ncol(x) > 1) {
column_defs <- list(
list(className = "dt-left", targets = 0),
list(className = "dt-center", targets = 1:4)
)
} else {
column_defs <- list(
list(className = "dt-left", targets = 0)
)
}
# render table
DT::datatable(
x,
rownames = FALSE,
escape = FALSE,
editable = FALSE,
selection = "none",
fillContainer = TRUE,
extensions = "Buttons",
container = container,
options = list(
## align columns
columnDefs = column_defs,
## disable paging
paging = FALSE,
scrollY = "clamp(300px, calc(100vh - 295px), 10000px)",
scrollCollapse = TRUE,
## download button
dom = "Bfrtip",
buttons = list(
list(
extend = "collection",
text = as.character(shiny::icon("file-download")),
title = "Download spreadsheet",
action = action_js
)
)
)
)
},
#' @description
#' Render exclude results.
#' @return [DT::datatable()] object.
render_exclude_results = function() {
# generate table
x <- self$get_exclude_results_data()
# wrap text columns
x[[1]] <- wrap_text(x[[1]])
# define JS for button
action_js <- htmlwidgets::JS(
"function ( e, dt, node, config ) {",
" $('#exclude_results_button')[0].click();",
"}"
)
# define container
if (ncol(x) > 1) {
container <- htmltools::tags$table(
class = "display",
htmltools::tags$thead(
htmltools::tags$tr(
htmltools::tags$th(rowspan = 2, "Exclude"),
htmltools::tags$th(rowspan = 2, "Status"),
htmltools::tags$th(rowspan = 2, "Total (units)"),
htmltools::tags$th(
class = "dt-center", colspan = 2, "Solution"
)
),
htmltools::tags$tr(
lapply(c("(%)", "(units)"), htmltools::tags$th)
)
)
)
} else {
container <- rlang::missing_arg()
}
# define columns
if (ncol(x) > 1) {
column_defs <- list(
list(className = "dt-left", targets = 0),
list(className = "dt-center", targets = 1:4)
)
} else {
column_defs <- list(
list(className = "dt-left", targets = 0)
)
}
# render table
DT::datatable(
x,
rownames = FALSE,
escape = FALSE,
editable = FALSE,
selection = "none",
fillContainer = TRUE,
extensions = "Buttons",
container = container,
options = list(
## align columns
columnDefs = column_defs,
## disable paging
paging = FALSE,
scrollY = "clamp(300px, calc(100vh - 295px), 10000px)",
scrollCollapse = TRUE,
## download button
dom = "Bfrtip",
buttons = list(
list(
extend = "collection",
text = as.character(shiny::icon("file-download")),
title = "Download spreadsheet",
action = action_js
)
)
)
)
},
#' @description
#' Set setting.
#' @param name `character` setting name.
#' Available options are `"visible"``.
#' @param value `ANY` new value.
set_setting = function(name, value) {
assertthat::assert_that(
assertthat::is.string(name),
assertthat::noNA(name),
name %in% c("visible")
)
if (identical(name, "visible")) {
self$set_visible(value)
} else {
stop(paste0("\"", name, "\" is not a setting"))
}
invisible(self)
},
#' @description
#' Get data for displaying the theme in a [solutionResults()] widget.
#' @return `list` with widget data.
get_solution_results_widget_data = function() {
list(
id = self$id,
name = self$name,
parameters = lapply(
self$parameters,
function(x) x$get_widget_data()
),
statistics = lapply(
self$statistics,
function(x) x$get_widget_data()
),
theme_results = lapply(
self$theme_results,
function(x) x$get_widget_data()
),
weight_results = lapply(
self$weight_results,
function(x) x$get_widget_data()
),
include_results = lapply(
self$include_results,
function(x) x$get_widget_data()
),
exclude_results = lapply(
self$exclude_results,
function(x) x$get_widget_data()
),
solution_color = scales::alpha(last(self$variable$legend$colors), 1)
)
},
#' @description
#' Get data for displaying the theme in a [mapManager()] widget.
#' @return `list` with widget data.
get_map_manager_widget_data = function() {
list(
id = self$id,
name = self$name,
visible = self$visible,
legend = self$variable$legend$get_widget_data(),
units = self$variable$units,
type = "solution",
hidden = self$hidden
)
},
#' @description
#' Render on map.
#' @param x [leaflet::leaflet()] object.
#' @param zindex `numeric` z-index for ordering.
#' @return [leaflet::leaflet()] object.
render_on_map = function(x, zindex) {
if (self$hidden) return(x) # don't render on map if hidden
self$variable$render(x, self$pane, zindex, self$visible)
},
#' @description
#' Render on map.
#' @param x [leaflet::leafletProxy()] object.
#' @param zindex `numeric` z-index for ordering.
#' @return [leaflet::leafletProxy()] object.
update_on_map = function(x, zindex) {
if (self$hidden) return(x) # don't render on map if hidden
self$variable$update_render(x, self$pane, zindex, self$visible)
}
)
)
#' New solution
#'
#' Create a new [Solution] object.
#'
#' @param name `character` name for new solution.
#'
#' @param variable [Variable] object with the solution.
#'
#' @param visible `logical` should the solution be visible on a map?
#'
#' @param invisible `numeric` date/time. A time stamp date given to when a
#' loaded layer is first turned invisible. This is used to keep track
#' of loaded invisible layers to offload once the cache threshold has been
#' reached.
#' Defaults to `NA_real_`.
#'
#' @param loaded `logical` The initial loaded value.
#' This is used to determine if the feature is loaded (or not)
#' or not the map.
#' Defaults to `FALSE`.
#'
#' @param parameters `list` of [Parameter] objects.
#'
#' @param statistics `list` of [Statistic] objects.
#'
#' @param theme_results `list` of [ThemeResults] objects.
#'
#' @param weight_results `list` of [WeightResults] objects.
#'
#' @param include_results `list` of [IncludeResults] objects.
#'
#' @param exclude_results `list` of [ExcludeResults] objects.