Name: ClustersOutliers

Display Field: COType

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This polygon layer represents Local Moran’s I results derived from community-level arson rates in Chicago during 2020. The Local Moran’s I statistic identifies the nature of spatial relationships by comparing each community’s arson rate with the rates of surrounding neighborhoods.The output distinguishes four key spatial categories:• High–High clusters: Communities with high arson rates surrounded by similar high values.• Low–Low clusters: Communities with low arson rates surrounded by other low-rate areas.• High–Low outliers: Communities with high arson rates surrounded by low-rate neighbors (isolated hotspots).• Low–High outliers: Communities with low arson rates surrounded by high-rate neighbors (isolated safe areas).These classifications reveal spatial dependence, highlight unusual outlier neighborhoods, and complement Gi* hotspot analysis by identifying both concentrations of risk and exceptions to the broader pattern.Temporal Scope: January 1 – December 31, 2020.

Copyright Text: ESRI Spatial Statistics Tools, Chicago Crime Data Portal (2020),

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: 1091130.76494869
YMin: 1813891.87454232
XMax: 1205198.84294867
YMax: 1951669.00322823
Spatial Reference: 103037 (6455)

Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeNone

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True

Global ID Field:

Type ID Field: COType

Fields:

• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• SOURCE_ID (type: esriFieldTypeInteger, alias: SOURCE_ID, SQL Type: sqlTypeOther, nullable: false, editable: true)
• Arson_rate (type: esriFieldTypeSingle, alias: Arson_rate, SQL Type: sqlTypeOther, nullable: true, editable: true)
• LMiIndex (type: esriFieldTypeDouble, alias: LMiIndex RS, SQL Type: sqlTypeOther, nullable: true, editable: true)
• LMiZScore (type: esriFieldTypeDouble, alias: LMiZScore RS, SQL Type: sqlTypeOther, nullable: true, editable: true)
• LMiPValue (type: esriFieldTypeDouble, alias: LMiPValue RS, SQL Type: sqlTypeOther, nullable: true, editable: true)
• COType (type: esriFieldTypeString, alias: COType RS, SQL Type: sqlTypeOther, length: 2, nullable: true, editable: true)
• NNeighbors (type: esriFieldTypeInteger, alias: NNeighbors RS, SQL Type: sqlTypeOther, nullable: true, editable: true)
• ZTransform (type: esriFieldTypeDouble, alias: ZTransform RS, SQL Type: sqlTypeOther, nullable: true, editable: true)
• SpatialLag (type: esriFieldTypeDouble, alias: SpatialLag RS, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Types:

ID: HH
Name: High-High cluster
Domains:

Templates:

Name: HH
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SOURCE_ID: 0
• COType: HH

---

ID: HL
Name: High-Low outlier
Domains:

Templates:

Name: HL
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SOURCE_ID: 0
• COType: HL

---

ID: LH
Name: Low-High outlier
Domains:

Templates:

Name: LH
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SOURCE_ID: 0
• COType: LH

---

ID: LL
Name: Low-Low cluster
Domains:

Templates:

Name: LL
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SOURCE_ID: 0
• COType: LL

---

ID:
Name: Not significant
Domains:

Templates:

Name:
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SOURCE_ID: 0
• COType:

---

ID:
Name: Not significant
Domains:

Templates:

Name: <Null>
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SOURCE_ID: 0

---

ID: NN
Name: No neighbors
Domains:

Templates:

Name: NN
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

• SOURCE_ID: 0
• COType: NN

---

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 1/29/2026 9:55:43 PM

Schema Last Edit Date: 1/29/2026 9:55:43 PM

Data Last Edit Date: 1/29/2026 9:55:43 PM

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