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-rw-r--r--stats/statsstate.cpp250
1 files changed, 174 insertions, 76 deletions
diff --git a/stats/statsstate.cpp b/stats/statsstate.cpp
index e26a805eb..5522ebc5a 100644
--- a/stats/statsstate.cpp
+++ b/stats/statsstate.cpp
@@ -17,7 +17,7 @@ static const char *chart_subtype_names[] = {
};
enum class SupportedVariable {
- Count,
+ None,
Categorical, // Implies that the variable is binned
Continuous, // Implies that the variable is binned
Numeric
@@ -34,7 +34,7 @@ static const struct ChartTypeDesc {
const char *name;
SupportedVariable var1;
SupportedVariable var2;
- bool var2HasOperations;
+ bool var1Binned, var2Binned, var2HasOperations;
const std::vector<ChartSubType> subtypes;
int features;
} chart_types[] = {
@@ -43,7 +43,7 @@ static const struct ChartTypeDesc {
QT_TRANSLATE_NOOP("StatsTranslations", "Scattergraph"),
SupportedVariable::Continuous,
SupportedVariable::Numeric,
- false,
+ false, false, false,
{ ChartSubType::Dots },
0
},
@@ -51,8 +51,8 @@ static const struct ChartTypeDesc {
ChartType::HistogramCount,
QT_TRANSLATE_NOOP("StatsTranslations", "Histogram"),
SupportedVariable::Continuous,
- SupportedVariable::Count,
- false,
+ SupportedVariable::None,
+ true, false, false,
{ ChartSubType::Vertical, ChartSubType::Horizontal },
ChartFeatureLabels | ChartFeatureMedian | ChartFeatureMean
},
@@ -61,7 +61,7 @@ static const struct ChartTypeDesc {
QT_TRANSLATE_NOOP("StatsTranslations", "Histogram"),
SupportedVariable::Continuous,
SupportedVariable::Numeric,
- true,
+ true, false, true,
{ ChartSubType::Vertical, ChartSubType::Horizontal },
ChartFeatureLabels
},
@@ -70,7 +70,7 @@ static const struct ChartTypeDesc {
QT_TRANSLATE_NOOP("StatsTranslations", "Histogram"),
SupportedVariable::Continuous,
SupportedVariable::Numeric,
- false,
+ true, false, false,
{ ChartSubType::Box },
0
},
@@ -79,7 +79,7 @@ static const struct ChartTypeDesc {
QT_TRANSLATE_NOOP("StatsTranslations", "Histogram"),
SupportedVariable::Continuous,
SupportedVariable::Categorical,
- false,
+ true, true, false,
{ ChartSubType::VerticalStacked, ChartSubType::HorizontalStacked },
ChartFeatureLabels | ChartFeatureLegend
},
@@ -88,7 +88,7 @@ static const struct ChartTypeDesc {
QT_TRANSLATE_NOOP("StatsTranslations", "Categorical"),
SupportedVariable::Categorical,
SupportedVariable::Numeric,
- false,
+ true, false, false,
{ ChartSubType::Dots },
ChartFeatureQuartiles
},
@@ -97,7 +97,7 @@ static const struct ChartTypeDesc {
QT_TRANSLATE_NOOP("StatsTranslations", "Categorical"),
SupportedVariable::Categorical,
SupportedVariable::Numeric,
- true,
+ true, false, true,
{ ChartSubType::Vertical, ChartSubType::Horizontal },
ChartFeatureLabels
},
@@ -105,8 +105,8 @@ static const struct ChartTypeDesc {
ChartType::DiscreteCount,
QT_TRANSLATE_NOOP("StatsTranslations", "Categorical"),
SupportedVariable::Categorical,
- SupportedVariable::Count,
- false,
+ SupportedVariable::None,
+ true, false, false,
{ ChartSubType::Vertical, ChartSubType::Horizontal },
ChartFeatureLabels
},
@@ -115,7 +115,7 @@ static const struct ChartTypeDesc {
QT_TRANSLATE_NOOP("StatsTranslations", "Categorical"),
SupportedVariable::Categorical,
SupportedVariable::Numeric,
- false,
+ true, false, false,
{ ChartSubType::Box },
0
},
@@ -123,8 +123,8 @@ static const struct ChartTypeDesc {
ChartType::Pie,
QT_TRANSLATE_NOOP("StatsTranslations", "Categorical"),
SupportedVariable::Categorical,
- SupportedVariable::Count,
- false,
+ SupportedVariable::None,
+ true, false, false,
{ ChartSubType::Pie },
ChartFeatureLabels | ChartFeatureLegend
},
@@ -133,7 +133,7 @@ static const struct ChartTypeDesc {
QT_TRANSLATE_NOOP("StatsTranslations", "Barchart"),
SupportedVariable::Categorical,
SupportedVariable::Categorical,
- false,
+ true, true, false,
{ ChartSubType::VerticalGrouped, ChartSubType::VerticalStacked, ChartSubType::HorizontalGrouped, ChartSubType::HorizontalStacked },
ChartFeatureLabels | ChartFeatureLegend
}
@@ -149,7 +149,7 @@ enum ChartValidity {
Invalid
};
-static const int count_idx = -1; // Special index for the count variable
+static const int none_idx = -1; // Special index meaning no second variable
StatsState::StatsState() :
var1(stats_variables[0]),
@@ -163,23 +163,20 @@ StatsState::StatsState() :
quartiles(true),
var1Binner(nullptr),
var2Binner(nullptr),
- var2Operation(StatsOperation::Invalid),
- var1Binned(false),
- var2Binned(false),
- var2HasOperations(false)
+ var2Operation(StatsOperation::Invalid)
{
validate(true);
}
-static StatsState::VariableList createVariableList(const StatsVariable *selected, bool addCount, const StatsVariable *omit)
+static StatsState::VariableList createVariableList(const StatsVariable *selected, bool addNone, const StatsVariable *omit)
{
StatsState::VariableList res;
- res.variables.reserve(stats_variables.size() + addCount);
+ res.variables.reserve(stats_variables.size() + addNone);
res.selected = -1;
- if (addCount) {
+ if (addNone) {
if (selected == nullptr)
res.selected = (int)res.variables.size();
- res.variables.push_back({ StatsTranslations::tr("Count"), count_idx });
+ res.variables.push_back({ StatsTranslations::tr("none"), none_idx });
}
for (int i = 0; i < (int)stats_variables.size(); ++i) {
const StatsVariable *variable = stats_variables[i];
@@ -204,12 +201,14 @@ static std::pair<ChartType, ChartSubType> fromInt(int id)
return { (ChartType)(id >> 16), (ChartSubType)(id & 0xff) };
}
-static ChartValidity variableValidity(StatsVariable::Type type, SupportedVariable var)
+static ChartValidity variableValidity(StatsVariable::Type type, const StatsBinner *binner, SupportedVariable var, bool binned)
{
+ if (!!binner != binned)
+ return ChartValidity::Invalid;
switch (var) {
default:
- case SupportedVariable::Count:
- return ChartValidity::Invalid; // Count has been special cased outside of this function
+ case SupportedVariable::None:
+ return ChartValidity::Invalid; // None has been special cased outside of this function
case SupportedVariable::Categorical:
return type == StatsVariable::Type::Continuous || type == StatsVariable::Type::Numeric ?
ChartValidity::Undesired : ChartValidity::Good;
@@ -220,35 +219,44 @@ static ChartValidity variableValidity(StatsVariable::Type type, SupportedVariabl
}
}
-static ChartValidity chartValidity(const ChartTypeDesc &desc, const StatsVariable *var1, const StatsVariable *var2)
+static ChartValidity chartValidity(const ChartTypeDesc &desc,
+ const StatsVariable *var1, const StatsVariable *var2,
+ const StatsBinner *binner1, const StatsBinner *binner2,
+ StatsOperation operation)
{
if (!var1)
- return ChartValidity::Invalid; // Huh? We don't support count as independent variable
+ return ChartValidity::Invalid; // Huh? We don't support no independent variable
// Check the first variable
- ChartValidity valid1 = variableValidity(var1->type(), desc.var1);
+ ChartValidity valid1 = variableValidity(var1->type(), binner1, desc.var1, desc.var1Binned);
if (valid1 == ChartValidity::Invalid)
return ChartValidity::Invalid;
// Then, check the second variable
- if (var2 == nullptr) // Our special marker for "count"
- return desc.var2 == SupportedVariable::Count ? valid1 : ChartValidity::Invalid;
+ if (var2 == nullptr) // Our special marker for "none"
+ return desc.var2 == SupportedVariable::None ? valid1 : ChartValidity::Invalid;
- ChartValidity valid2 = variableValidity(var2->type(), desc.var2);
+ ChartValidity valid2 = variableValidity(var2->type(), binner2, desc.var2, desc.var2Binned);
if (valid2 == ChartValidity::Invalid)
return ChartValidity::Invalid;
+ // Check whether the chart supports operations.
+ if ((operation != StatsOperation::Invalid) != desc.var2HasOperations)
+ return ChartValidity::Invalid;
+
return valid1 == ChartValidity::Undesired || valid2 == ChartValidity::Undesired ?
ChartValidity::Undesired : ChartValidity::Good;
}
// Returns a list of (chart-type, warning) pairs
-const std::vector<std::pair<const ChartTypeDesc &, bool>> validCharts(const StatsVariable *var1, const StatsVariable *var2)
+const std::vector<std::pair<const ChartTypeDesc &, bool>> validCharts(const StatsVariable *var1, const StatsVariable *var2,
+ const StatsBinner *binner1, const StatsBinner *binner2,
+ StatsOperation operation)
{
std::vector<std::pair<const ChartTypeDesc &, bool>> res;
res.reserve(std::size(chart_types));
for (const ChartTypeDesc &desc: chart_types) {
- ChartValidity valid = chartValidity(desc, var1, var2);
+ ChartValidity valid = chartValidity(desc, var1, var2, binner1, binner2, operation);
if (valid == ChartValidity::Invalid)
continue;
res.emplace_back(desc, valid == ChartValidity::Undesired);
@@ -257,11 +265,14 @@ const std::vector<std::pair<const ChartTypeDesc &, bool>> validCharts(const Stat
return res;
}
-static StatsState::ChartList createChartList(const StatsVariable *var1, const StatsVariable *var2, ChartType selectedType, ChartSubType selectedSubType)
+static StatsState::ChartList createChartList(const StatsVariable *var1, const StatsVariable *var2,
+ const StatsBinner *binner1, const StatsBinner *binner2,
+ StatsOperation operation,
+ ChartType selectedType, ChartSubType selectedSubType)
{
StatsState::ChartList res;
res.selected = -1;
- for (auto [desc, warn]: validCharts(var1, var2)) {
+ for (auto [desc, warn]: validCharts(var1, var2, binner1, binner2, operation)) {
QString name = StatsTranslations::tr(desc.name);
for (ChartSubType subtype: desc.subtypes) {
int id = toInt(desc.id, subtype);
@@ -282,16 +293,33 @@ static StatsState::ChartList createChartList(const StatsVariable *var1, const St
return res;
}
-static StatsState::BinnerList createBinnerList(bool binned, const StatsVariable *var, const StatsBinner *binner)
+// For non-discrete types propose a "no-binning" option unless this is
+// the second variable and has no operations (i.e. is numeric)
+static bool noBinningAllowed(const StatsVariable *var, bool second)
+{
+ if (var->type() == StatsVariable::Type::Discrete)
+ return false;
+ return !second || var->type() == StatsVariable::Type::Numeric;
+}
+
+static StatsState::BinnerList createBinnerList(const StatsVariable *var, const StatsBinner *binner, bool binningAllowed, bool second)
{
StatsState::BinnerList res;
res.selected = -1;
- if (!binned || !var)
+ if (!var || !binningAllowed)
return res;
std::vector<const StatsBinner *> binners = var->binners();
- if (binners.size() <= 1)
- return res; // Don't show combo boxes for single binners
- res.binners.reserve(binners.size());
+ res.binners.reserve(binners.size() + 1);
+ if (var->type() == StatsVariable::Type::Discrete) {
+ if (binners.size() <= 1)
+ return res; // Don't show combo boxes for single binners
+ } else if (noBinningAllowed(var, second)) {
+ if (!second || var->type() == StatsVariable::Type::Numeric) {
+ if (!binner)
+ res.selected = (int)res.binners.size();
+ res.binners.push_back(StatsTranslations::tr("none"));
+ }
+ }
for (const StatsBinner *bin: binners) {
if (bin == binner)
res.selected = (int)res.binners.size();
@@ -300,14 +328,23 @@ static StatsState::BinnerList createBinnerList(bool binned, const StatsVariable
return res;
}
-static StatsState::VariableList createOperationsList(bool hasOperations, const StatsVariable *var, StatsOperation operation)
+static StatsState::VariableList createOperationsList(const StatsVariable *var, StatsOperation operation, const StatsBinner *var1Binner)
{
StatsState::VariableList res;
res.selected = -1;
- if (!hasOperations || !var)
+ // Operations only possible if the first variable is binned
+ if (!var || !var1Binner)
return res;
std::vector<StatsOperation> operations = var->supportedOperations();
- res.variables.reserve(operations.size());
+ if (operations.empty())
+ return res;
+
+ res.variables.reserve(operations.size() + 1);
+
+ // Add a "none" entry
+ if (operation == StatsOperation::Invalid)
+ res.selected = (int)res.variables.size();
+ res.variables.push_back({ StatsTranslations::tr("none"), (int)StatsOperation::Invalid });
for (StatsOperation op: operations) {
if (op == operation)
res.selected = (int)res.variables.size();
@@ -339,18 +376,27 @@ StatsState::UIState StatsState::getUIState() const
res.var2 = createVariableList(var2, true, var1);
res.var1Name = var1 ? var1->name() : QString();
res.var2Name = var2 ? var2->name() : QString();
- res.charts = createChartList(var1, var2, type, subtype);
- res.binners1 = createBinnerList(var1Binned, var1, var1Binner);
- res.binners2 = createBinnerList(var2Binned, var2, var2Binner);
- res.operations2 = createOperationsList(var2HasOperations, var2, var2Operation);
+ res.charts = createChartList(var1, var2, var1Binner, var2Binner, var2Operation, type, subtype);
+ res.binners1 = createBinnerList(var1, var1Binner, true, false);
+ // Second variable can only be binned if first variable is binned.
+ res.binners2 = createBinnerList(var2, var2Binner, var1Binner != nullptr, true);
+ res.operations2 = createOperationsList(var2, var2Operation, var1Binner);
res.features = createFeaturesList(chartFeatures, labels, legend, median, mean, quartiles);
return res;
}
-static const StatsBinner *idxToBinner(const StatsVariable *v, int idx)
+static const StatsBinner *idxToBinner(const StatsVariable *v, int idx, bool second)
{
if (!v)
return nullptr;
+
+ // Special case: for non-discrete variables, the first entry means "none".
+ if (noBinningAllowed(v, second)) {
+ if (idx == 0)
+ return nullptr;
+ --idx;
+ }
+
auto binners = v->binners();
return idx >= 0 && idx < (int)binners.size() ? binners[idx] : 0;
}
@@ -363,27 +409,47 @@ void StatsState::var1Changed(int id)
void StatsState::binner1Changed(int idx)
{
- var1Binner = idxToBinner(var1, idx);
+ var1Binner = idxToBinner(var1, idx, false);
+
+ // If the first variable is not binned, the second variable must be of the "numeric" type.
+ if(!var1Binner && (!var2 || var2->type() != StatsVariable::Type::Numeric)) {
+ // Find first variable that is numeric, but not the same as the first
+ auto it = std::find_if(stats_variables.begin(), stats_variables.end(),
+ [v1 = var1] (const StatsVariable *v)
+ { return v != v1 && v->type() == StatsVariable::Type::Numeric; });
+ var2 = it != stats_variables.end() ? *it : nullptr;
+ }
+
validate(false);
}
void StatsState::var2Changed(int id)
{
- // The "count" variable is represented by a nullptr
- var2 = id == count_idx ? nullptr
- : stats_variables[std::clamp(id, 0, (int)stats_variables.size())];
+ // The "none" variable is represented by a nullptr
+ var2 = id == none_idx ? nullptr
+ : stats_variables[std::clamp(id, 0, (int)stats_variables.size())];
validate(true);
}
void StatsState::binner2Changed(int idx)
{
- var2Binner = idxToBinner(var2, idx);
+ var2Binner = idxToBinner(var2, idx, true);
+
+ // We do not support operations and binning at the same time.
+ if (var2Binner)
+ var2Operation = StatsOperation::Invalid;
+
validate(false);
}
void StatsState::var2OperationChanged(int id)
{
var2Operation = (StatsOperation)id;
+
+ // We do not support operations and binning at the same time.
+ if (var2Operation != StatsOperation::Invalid)
+ var2Binner = nullptr;
+
validate(false);
}
@@ -431,32 +497,49 @@ const ChartTypeDesc &newChartType(ChartType type, std::vector<std::pair<const Ch
return charts.empty() ? chart_types[0] : charts[0].first;
}
-static void validateBinner(const StatsBinner *&binner, const StatsVariable *var, bool isBinned)
+static const StatsBinner *getFirstBinner(const StatsVariable *var)
+{
+ if (!var)
+ return nullptr;
+ auto binners = var->binners();
+ return binners.empty() ? nullptr : binners.front();
+}
+
+static void validateBinner(const StatsBinner *&binner, const StatsVariable *var, bool second)
{
- if (!var || !isBinned) {
+ if (!var) {
binner = nullptr;
return;
}
+
+ bool noneOk = noBinningAllowed(var, second);
+ if (noneOk & !binner)
+ return;
+
auto binners = var->binners();
if (std::find(binners.begin(), binners.end(), binner) != binners.end())
return;
- // For now choose the first binner. However, we might try to be smarter here
- // and adapt to the given screen size and the estimated number of bins.
- binner = binners.empty() ? nullptr : binners[0];
+ // For now choose the first binner or no binner if this is a non-discrete
+ // variable. However, we might try to be smarter here and adapt to the
+ // given screen size and the estimated number of bins.
+ binner = binners.empty() || noneOk ? nullptr : binners[0];
}
-static void validateOperation(StatsOperation &operation, const StatsVariable *var, bool hasOperation)
+static void validateOperation(StatsOperation &operation, const StatsVariable *var, const StatsBinner *var1Binner)
{
- if (!hasOperation) {
+ // 1) No variable, no operation.
+ // 2) We allow operations only if the first variable is binned.
+ if (!var) {
operation = StatsOperation::Invalid;
return;
}
+
std::vector<StatsOperation> ops = var->supportedOperations();
if (std::find(ops.begin(), ops.end(), operation) != ops.end())
return;
- operation = ops.empty() ? StatsOperation::Invalid : ops[0];
+ operation = StatsOperation::Invalid;
}
// The var changed variable indicates whether this function is called
@@ -466,13 +549,37 @@ static void validateOperation(StatsOperation &operation, const StatsVariable *va
// so let's use that.
void StatsState::validate(bool varChanged)
{
+ // We need at least one variable
+ if (!var1)
+ var1 = stats_variables[0];
+
// Take care that we don't plot a variable against itself.
- // By default plot the count of the first variable. Is that sensible?
if (var1 == var2)
var2 = nullptr;
+ // If there is no second variable or the second variable is not
+ // "numeric", the first variable must be binned.
+ if (!var2 || var2->type() != StatsVariable::Type::Numeric)
+ var1Binner = getFirstBinner(var1);
+
+ // Check that the binners and operation are valid
+ if (!var1Binner) {
+ var2Binner = nullptr; // Second variable can only be binned if first variable is binned.
+ var2Operation = StatsOperation::Invalid;
+ }
+ validateBinner(var1Binner, var1, false);
+ validateBinner(var2Binner, var2, true);
+ validateOperation(var2Operation, var2, var1Binner);
+
// Let's see if the currently selected chart is one of the valid charts
- auto charts = validCharts(var1, var2);
+ auto charts = validCharts(var1, var2, var1Binner, var2Binner, var2Operation);
+
+ if (charts.empty()) {
+ // Ooops. No valid chart with these settings. The validation should be improved.
+ type = ChartType::Invalid;
+ return;
+ }
+
const ChartTypeDesc &desc = newChartType(type, charts, varChanged);
type = desc.id;
@@ -480,17 +587,8 @@ void StatsState::validate(bool varChanged)
if (std::find(desc.subtypes.begin(), desc.subtypes.end(), subtype) == desc.subtypes.end())
subtype = desc.subtypes.empty() ? ChartSubType::Horizontal : desc.subtypes[0];
- var1Binned = type != ChartType::ScatterPlot;
- var2Binned = desc.var2 == SupportedVariable::Categorical || desc.var2 == SupportedVariable::Continuous;
- var2HasOperations = desc.var2HasOperations;
-
chartFeatures = desc.features;
- // Median and mean currently only if first variable is numeric
+ // Median and mean currently only if the first variable is numeric
if (!var1 || var1->type() != StatsVariable::Type::Numeric)
chartFeatures &= ~(ChartFeatureMedian | ChartFeatureMean);
-
- // Check that the binners and operation are valid
- validateBinner(var1Binner, var1, var1Binned);
- validateBinner(var2Binner, var2, var2Binned);
- validateOperation(var2Operation, var2, var2HasOperations);
}
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-12-25 06:01:08 +0000