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contribs/application/src/main/java/org/matsim/application/analysis/population/Category.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,133 @@ | ||
| package org.matsim.application.analysis.population; | ||
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| import java.util.*; | ||
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| /** | ||
| * Categorize values into groups. | ||
| */ | ||
| public final class Category { | ||
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| private static final Set<String> TRUE = Set.of("true", "yes", "1", "on", "y", "j", "ja"); | ||
| private static final Set<String> FALSE = Set.of("false", "no", "0", "off", "n", "nein"); | ||
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| /** | ||
| * Unique values of the category. | ||
| */ | ||
| private final Set<String> values; | ||
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| /** | ||
| * Groups of values that have been subsumed under a single category. | ||
| * These are values separated by , | ||
| */ | ||
| private final Map<String, String> grouped; | ||
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| /** | ||
| * Range categories. | ||
| */ | ||
| private final List<Range> ranges; | ||
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| public Category(Set<String> values) { | ||
| this.values = values; | ||
| this.grouped = new HashMap<>(); | ||
| for (String v : values) { | ||
| if (v.contains(",")) { | ||
| String[] grouped = v.split(","); | ||
| for (String g : grouped) { | ||
| this.grouped.put(g, v); | ||
| } | ||
| } | ||
| } | ||
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| boolean range = this.values.stream().allMatch(v -> v.contains("-") || v.contains("+")); | ||
| if (range) { | ||
| ranges = new ArrayList<>(); | ||
| for (String value : this.values) { | ||
| if (value.contains("-")) { | ||
| String[] parts = value.split("-"); | ||
| ranges.add(new Range(Double.parseDouble(parts[0]), Double.parseDouble(parts[1]), value)); | ||
| } else if (value.contains("+")) { | ||
| ranges.add(new Range(Double.parseDouble(value.replace("+", "")), Double.POSITIVE_INFINITY, value)); | ||
| } | ||
| } | ||
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| ranges.sort(Comparator.comparingDouble(r -> r.left)); | ||
| } else | ||
| ranges = null; | ||
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| // Check if all values are boolean | ||
| if (values.stream().allMatch(v -> TRUE.contains(v.toLowerCase()) || FALSE.contains(v.toLowerCase()))) { | ||
| for (String value : values) { | ||
| Set<String> group = TRUE.contains(value.toLowerCase()) ? TRUE : FALSE; | ||
| for (String g : group) { | ||
| this.grouped.put(g, value); | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| /** | ||
| * Categorize a single value. | ||
| */ | ||
| public String categorize(Object value) { | ||
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| if (value == null) | ||
| return null; | ||
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| if (value instanceof Boolean) { | ||
| // Booleans and synonyms are in the group map | ||
| return categorize(((Boolean) value).toString().toLowerCase()); | ||
| } else if (value instanceof Number) { | ||
| return categorizeNumber((Number) value); | ||
| } else { | ||
| String v = value.toString(); | ||
| if (values.contains(v)) | ||
| return v; | ||
| else if (grouped.containsKey(v)) | ||
| return grouped.get(v); | ||
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| try { | ||
| double d = Double.parseDouble(v); | ||
| return categorizeNumber(d); | ||
| } catch (NumberFormatException e) { | ||
| return null; | ||
| } | ||
| } | ||
| } | ||
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| private String categorizeNumber(Number value) { | ||
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| if (ranges != null) { | ||
| for (Range r : ranges) { | ||
| if (value.doubleValue() >= r.left && value.doubleValue() < r.right) | ||
| return r.label; | ||
| } | ||
| } | ||
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| // Match string representation | ||
| String v = value.toString(); | ||
| if (values.contains(v)) | ||
| return v; | ||
| else if (grouped.containsKey(v)) | ||
| return grouped.get(v); | ||
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| // Convert the number to a whole number, which will have a different string representation | ||
| if (value instanceof Float || value instanceof Double) { | ||
| return categorizeNumber(value.longValue()); | ||
| } | ||
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| return null; | ||
| } | ||
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| /** | ||
| * @param left Left bound of the range. | ||
| * @param right Right bound of the range. (exclusive) | ||
| * @param label Label of this group. | ||
| */ | ||
| private record Range(double left, double right, String label) { | ||
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| } | ||
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| } |
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65 changes: 65 additions & 0 deletions
65
...bs/application/src/test/java/org/matsim/application/analysis/population/CategoryTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| package org.matsim.application.analysis.population; | ||
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| import org.junit.jupiter.api.Test; | ||
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| import java.util.Set; | ||
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| import static org.assertj.core.api.Assertions.assertThat; | ||
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| class CategoryTest { | ||
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| @Test | ||
| void standard() { | ||
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| Category c = new Category(Set.of("a", "b", "c")); | ||
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| assertThat(c.categorize("a")).isEqualTo("a"); | ||
| assertThat(c.categorize("b")).isEqualTo("b"); | ||
| assertThat(c.categorize("c")).isEqualTo("c"); | ||
| assertThat(c.categorize("d")).isNull(); | ||
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| } | ||
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| @Test | ||
| void ranges() { | ||
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| Category c = new Category(Set.of("1-2", "2-4", "4+")); | ||
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| assertThat(c.categorize("1")).isEqualTo("1-2"); | ||
| assertThat(c.categorize(1)).isEqualTo("1-2"); | ||
| assertThat(c.categorize(1.0)).isEqualTo("1-2"); | ||
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| assertThat(c.categorize("2")).isEqualTo("2-4"); | ||
| assertThat(c.categorize("3")).isEqualTo("2-4"); | ||
| assertThat(c.categorize("5")).isEqualTo("4+"); | ||
| assertThat(c.categorize(5)).isEqualTo("4+"); | ||
| assertThat(c.categorize(5.0)).isEqualTo("4+"); | ||
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| } | ||
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| @Test | ||
| void grouped() { | ||
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| Category c = new Category(Set.of("a,b", "101,102")); | ||
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| assertThat(c.categorize("a")).isEqualTo("a,b"); | ||
| assertThat(c.categorize("b")).isEqualTo("a,b"); | ||
| assertThat(c.categorize(101)).isEqualTo("101,102"); | ||
| assertThat(c.categorize(102)).isEqualTo("101,102"); | ||
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| } | ||
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| @Test | ||
| void bool() { | ||
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| Category c = new Category(Set.of("y", "n")); | ||
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| assertThat(c.categorize("y")).isEqualTo("y"); | ||
| assertThat(c.categorize("yes")).isEqualTo("y"); | ||
| assertThat(c.categorize("1")).isEqualTo("y"); | ||
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| assertThat(c.categorize(true)).isEqualTo("y"); | ||
| assertThat(c.categorize(false)).isEqualTo("n"); | ||
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| } | ||
| } |