# STAT 443: Classification and Regression Trees | UW–Madison

[View on UW Courses](https://uwcourses.com/courses/STAT_443)

## Dataset

### revision

e243353dcb7d79b7247ced91d69443ef4c2a6349

### repository

twangodev/uwcourses

### schema version

6

### importer version

7

### projection id

52a78527ff09011d88cb04c7d43867d9fbfec2930bf1dd2ec359ebd2844e0b07

### observed at

2026-09-07T15:55:43.033547+00:00

### built at

2026-09-10T19:50:42.743001+00:00

### courses

8951

### current instructors

5754

### limited

false

### terms

* 1272
* 1264
* 1262
* 1254
* 1252
* 1244
* 1242
* 1234
* 1232
* 1224
* 1222
* 1212
* 1204
* 1202
* 1194
* 1192
* 1184
* 1182
* 1174
* 1172
* 1164
* 1162
* 1154
* 1152
* 1144
* 1142
* 1134
* 1132
* 1124
* 1122
* 1114
* 1112
* 1104
* 1102
* 1094
* 1092
* 1084
* 1082
* 1074
* 1072

### term

1272

### departments

| subject   | count |
| --------- | ----- |
| AAE       | 90    |
| ABT       | 20    |
| ACCTIS    | 36    |
| ACTSCI    | 14    |
| AFAERO    | 10    |
| AFRICAN   | 87    |
| AFROAMER  | 71    |
| AGROECOL  | 21    |
| AMERIND   | 53    |
| ANAT\&PHY | 7     |
| ANATOMY   | 2     |
| ANESTHES  | 8     |
| ANSCI     | 57    |
| ANTHRO    | 95    |
| ART       | 125   |
| ARTED     | 10    |
| ARTHIST   | 121   |
| ASIALANG  | 129   |
| ASIAN     | 109   |
| ASIANAM   | 28    |
| ASTRON    | 38    |
| ATMOCN    | 69    |
| BIOCHEM   | 51    |
| BIOCORE   | 10    |
| BIOLOGY   | 14    |
| BIOMDSCI  | 18    |
| BME       | 66    |
| BMI       | 41    |
| BMOLCHEM  | 10    |
| BOTANY    | 69    |
| BSE       | 44    |
| C\&ESOC   | 73    |
| CBE       | 48    |
| CHEM      | 101   |
| CHICLA    | 52    |
| CIVENGR   | 133   |
| CLASSICS  | 47    |
| CNP       | 10    |
| CNSRSCI   | 50    |
| COMARTS   | 137   |
| COMPBIO   | 15    |
| COMPLIT   | 11    |
| COMPSCI   | 138   |
| COUNPSY   | 78    |
| CRB       | 19    |
| CS\&D     | 71    |
| CSCS      | 40    |
| CURRIC    | 193   |
| DANCE     | 93    |
| DERM      | 8     |
| DS        | 88    |
| DYSCI     | 35    |
| ECE       | 155   |
| ECON      | 145   |
| EDPOL     | 114   |
| EDPSYCH   | 97    |
| ELPA      | 70    |
| EMA       | 53    |
| EMERMED   | 17    |
| ENGL      | 206   |
| ENTOM     | 40    |
| ENVIRST   | 148   |
| EP        | 15    |
| EPD       | 67    |
| ESL       | 16    |
| F\&WECOL  | 60    |
| FAMMED    | 22    |
| FINANCE   | 50    |
| FOLKLORE  | 40    |
| FOODSCI   | 43    |
| FRENCH    | 63    |
| GEN\&WS   | 145   |
| GENBUS    | 72    |
| GENECSLR  | 17    |
| GENETICS  | 60    |
| GEOG      | 113   |
| GEOSCI    | 83    |
| GERMAN    | 82    |
| GLE       | 48    |
| GNS       | 38    |
| GREEK     | 27    |
| HDFS      | 41    |
| HEBR-BIB  | 13    |
| HEBR-MOD  | 10    |
| HISTORY   | 233   |
| HISTSCI   | 56    |
| HONCOL    | 13    |
| ILS       | 43    |
| INFOSYS   | 9     |
| INTEGART  | 7     |
| INTEGSCI  | 22    |
| INTER-AG  | 18    |
| INTER-HE  | 11    |
| INTER-LS  | 22    |
| INTEREGR  | 16    |
| INTLBUS   | 21    |
| INTLST    | 50    |
| ISYE      | 83    |
| ITALIAN   | 53    |
| JEWISH    | 56    |
| JOURN     | 88    |
| KINES     | 128   |
| LACIS     | 26    |
| LANDARC   | 61    |
| LATIN     | 24    |
| LAW       | 120   |
| LEGALST   | 48    |
| LINGUIS   | 35    |
| LIS       | 89    |
| LITTRANS  | 78    |
| LSC       | 52    |
| M\&ENVTOX | 7     |
| MARKETNG  | 62    |
| MATH      | 153   |
| MDGENET   | 8     |
| ME        | 130   |
| MEDHIST   | 43    |
| MEDICINE  | 60    |
| MEDIEVAL  | 32    |
| MEDPHYS   | 39    |
| MEDSC-M   | 29    |
| MEDSC-V   | 41    |
| MHR       | 68    |
| MICROBIO  | 45    |
| MILSCI    | 16    |
| MM\&I     | 22    |
| MOLBIOL   | 6     |
| MS\&E     | 59    |
| MUSIC     | 165   |
| MUSPERF   | 126   |
| NAVSCI    | 20    |
| NE        | 44    |
| NEURODPT  | 11    |
| NEUROL    | 7     |
| NEURSURG  | 4     |
| NTP       | 11    |
| NURSING   | 111   |
| NUTRSCI   | 65    |
| OBS\&GYN  | 18    |
| OCCTHER   | 39    |
| ONCOLOGY  | 14    |
| OPHTHALM  | 5     |
| OTM       | 43    |
| PATH      | 34    |
| PATH-BIO  | 29    |
| PEDIAT    | 26    |
| PHARMACY  | 31    |
| PHILOS    | 77    |
| PHMCOL-M  | 11    |
| PHMPRAC   | 45    |
| PHMSCI    | 60    |
| PHYASST   | 37    |
| PHYSICS   | 88    |
| PHYSIOL   | 3     |
| PHYTHER   | 37    |
| PLANTSCI  | 52    |
| PLPATH    | 35    |
| POLISCI   | 192   |
| POPHLTH   | 58    |
| PORTUG    | 33    |
| PSYCH     | 101   |
| PSYCHIAT  | 22    |
| PUBAFFR   | 54    |
| PUBLHLTH  | 23    |
| RADIOL    | 11    |
| REALEST   | 41    |
| RELIGST   | 90    |
| RHABMED   | 9     |
| RMI       | 24    |
| RP\&SE    | 102   |
| S\&APHM   | 17    |
| SCANDST   | 73    |
| SLAVIC    | 89    |
| SOC       | 149   |
| SOCWORK   | 87    |
| SOILSCI   | 46    |
| SPANISH   | 83    |
| SRMED     | 21    |
| STAT      | 94    |
| STDYABRD  | 52    |
| STS       | 8     |
| SURGERY   | 25    |
| SURGSCI   | 33    |
| THEATRE   | 91    |
| URBRPL    | 60    |
| UROLOGY   | 5     |
| ZOOLOGY   | 89    |

## course

### run id

20260907T155543-ce3781c4

### semester

1272

### observed at

2026-09-07 15:55:43.033547+00:00

### record version id

2c8176fae31555325581dc57e78058323dc38bf332fe67ec6bc9ab60a4cd681b

### course id

STAT 443

### course uid

course\_bbb14bdd283ccb9368b888c2

### catalog version id

0c71a67724b590dbb01f331c5ca0bfc864bf41edfd58d030102a701d4754d4e6

### course number

443

### subjects

* STAT

### title

CLASSIFICATION AND REGRESSION TREES

### description

Introduction to algorithms and applications of classification and regression trees. Recursive partitioning, pruning, and cross-validation estimation of prediction error. Class priors and misclassification costs. Univariate and linear splits. Linear and kernel discriminant analysis and nearest-neighbor classification. Unbiased variable selection and importance scoring of variables. Least-squares, quantile, Poisson, logistic, and proportional hazards regression tree models. Tree ensembles. Subgroup identification of differential treatment effects. Multiple and longitudinal response variables. Missing values and multiple missing value codes.  Comparisons with neural networks, support vector machines, and other methods. Bootstrap calibration and post-selection inference. Applications to business, social science, engineering, biology, medicine, and other fields.

### requirements text

STAT 333,340, graduate/professional standing, or declared in Statistics VISP

### credit offering ids

None recorded.

### llm job id

enrich-8b774950c2b6adfdc46d1b82

### llm output id

e7580d2b4792540cbf04b9fddfea96b97e7951b91d4dc2008b1d84e5cd7621a3

### llm model

nvidia/Qwen3.6-35B-A3B-NVFP4

### llm model revision

1355db6a052410cfd62085d94b58866fd0f2c3c5

### llm task version

14

### llm search status

valid

### llm summary

STAT 443 teaches algorithms for classification and regression trees, including pruning, ensembles, and variable selection.

### llm topics

* Recursive partitioning and pruning.
* Class priors and misclassification costs.
* Univariate and linear splits.
* Discriminant analysis and nearest-neighbor classification.
* Tree ensembles.
* Subgroup identification of differential treatment effects.
* Multiple and longitudinal response variables.
* Handling missing values.

### llm skills

* Building and pruning classification and regression trees.
* Variable selection and importance scoring.
* Fitting various regression tree models.
* Constructing tree ensembles.
* Identifying treatment effect subgroups.
* Bootstrap calibration and post-selection inference.

### llm assumed background

* Foundational knowledge of regression, probability, hypothesis testing, and R programming.
* Prerequisite coursework in statistics and mathematics, including STAT 240.

### llm search phrases

* classification and regression trees
* recursive partitioning
* tree ensembles
* STAT 443 algorithms
* prediction error estimation

### llm requirements status

valid

### llm student summary status

valid

### llm experience status

valid

### catalog variants

None recorded.

### student summary

#### context hash

70254b4c8e363caa4cdd5163bd537769100061d96188b887e80ac714594c5bcd

#### course id

STAT 443

#### current instructors

None recorded.

#### difficulty workload

Historical reviews of Wei-Yin Loh: The course is extremely difficult, with 60% of the grade based on a final project.

```json
{
  "citations": [
    {
      "instructor_name": "Wei-Yin Loh",
      "review_date": "2021-05-07 03:00:23 +0000 UTC",
      "review_id": "fa297eb4bb3f6800d569a45d",
      "run_id": "20260907T155543-ce3781c4",
      "source_instructor_id": "rmp:371080",
      "source_review_id": "UmF0aW5nLTM0NzI5NzE0",
      "source_url": "https://www.ratemyprofessors.com/professor/371080",
      "type": "review"
    },
    {
      "instructor_name": "Wei-Yin Loh",
      "review_date": "2022-12-07 02:41:54 +0000 UTC",
      "review_id": "e85f32f7d995a8899ff15db6",
      "run_id": "20260907T155543-ce3781c4",
      "source_instructor_id": "rmp:371080",
      "source_review_id": "UmF0aW5nLTM2OTk5ODQz",
      "source_url": "https://www.ratemyprofessors.com/professor/371080",
      "type": "review"
    }
  ]
}
```

#### errors

None recorded.

#### historical context

Historical reviews of Wei-Yin Loh: Wei-Yin Loh is described as captivating and approachable, though reviews disagree on lecture clarity and support. Some found him engaging, while others criticized vague content and lack of homework help. The course is noted as extremely difficult with a heavy final project weight.

```json
{
  "citations": [
    {
      "instructor_name": "Wei-Yin Loh",
      "review_date": "2021-05-07 03:00:23 +0000 UTC",
      "review_id": "fa297eb4bb3f6800d569a45d",
      "run_id": "20260907T155543-ce3781c4",
      "source_instructor_id": "rmp:371080",
      "source_review_id": "UmF0aW5nLTM0NzI5NzE0",
      "source_url": "https://www.ratemyprofessors.com/professor/371080",
      "type": "review"
    },
    {
      "instructor_name": "Wei-Yin Loh",
      "review_date": "2022-11-11 02:38:55 +0000 UTC",
      "review_id": "7a4078b2a83db76d08d61e8d",
      "run_id": "20260907T155543-ce3781c4",
      "source_instructor_id": "rmp:371080",
      "source_review_id": "UmF0aW5nLTM2ODE1NDUw",
      "source_url": "https://www.ratemyprofessors.com/professor/371080",
      "type": "review"
    },
    {
      "instructor_name": "Wei-Yin Loh",
      "review_date": "2022-12-07 02:41:54 +0000 UTC",
      "review_id": "e85f32f7d995a8899ff15db6",
      "run_id": "20260907T155543-ce3781c4",
      "source_instructor_id": "rmp:371080",
      "source_review_id": "UmF0aW5nLTM2OTk5ODQz",
      "source_url": "https://www.ratemyprofessors.com/professor/371080",
      "type": "review"
    }
  ]
}
```

#### offered

false

#### profile hash

5cb4dabf887cdbcd8c00d5a1312e10828b95c63f30bc3ea76aea199565390d02

#### quick take

Historical reviews of Wei-Yin Loh: Wei-Yin Loh is described as captivating and approachable, yet his teaching style is criticized for vague content and a lack of support, resulting in polarized student experiences.

```json
{
  "citations": [
    {
      "instructor_name": "Wei-Yin Loh",
      "review_date": "2021-05-07 03:00:23 +0000 UTC",
      "review_id": "fa297eb4bb3f6800d569a45d",
      "run_id": "20260907T155543-ce3781c4",
      "source_instructor_id": "rmp:371080",
      "source_review_id": "UmF0aW5nLTM0NzI5NzE0",
      "source_url": "https://www.ratemyprofessors.com/professor/371080",
      "type": "review"
    },
    {
      "instructor_name": "Wei-Yin Loh",
      "review_date": "2022-11-11 02:38:55 +0000 UTC",
      "review_id": "7a4078b2a83db76d08d61e8d",
      "run_id": "20260907T155543-ce3781c4",
      "source_instructor_id": "rmp:371080",
      "source_review_id": "UmF0aW5nLTM2ODE1NDUw",
      "source_url": "https://www.ratemyprofessors.com/professor/371080",
      "type": "review"
    },
    {
      "instructor_name": "Wei-Yin Loh",
      "review_date": "2022-12-07 02:41:54 +0000 UTC",
      "review_id": "e85f32f7d995a8899ff15db6",
      "run_id": "20260907T155543-ce3781c4",
      "source_instructor_id": "rmp:371080",
      "source_review_id": "UmF0aW5nLTM2OTk5ODQz",
      "source_url": "https://www.ratemyprofessors.com/professor/371080",
      "type": "review"
    }
  ]
}
```

Recent recorded grades — Fall 2022: 3.37 GPA, 65.2% A/AB (n=46 letter grades); Spring 2026: 3.67 GPA, 98.3% A/AB (n=58 letter grades).

```json
{
  "citations": [
    {
      "course_id": "STAT 443",
      "run_id": "20260907T155543-ce3781c4",
      "source_record": {
        "entity_id": "ea40447a-7fec-39ed-a440-a88544ba920c",
        "file": "tables/observations.parquet",
        "kind": "grades",
        "source": "madgrades"
      },
      "table": "grades_latest",
      "term_id": "1232",
      "type": "grade"
    },
    {
      "course_id": "STAT 443",
      "run_id": "20260907T155543-ce3781c4",
      "source_record": {
        "entity_id": "ea40447a-7fec-39ed-a440-a88544ba920c",
        "file": "tables/observations.parquet",
        "kind": "grades",
        "source": "madgrades"
      },
      "table": "grades_latest",
      "term_id": "1264",
      "type": "grade"
    }
  ]
}
```

#### student experience

Historical reviews of Wei-Yin Loh: Students find lecture notes unhelpful, consisting of hundreds of pages of code output, and report that homework help is unavailable during office hours.

```json
{
  "citations": [
    {
      "instructor_name": "Wei-Yin Loh",
      "review_date": "2022-11-11 02:38:55 +0000 UTC",
      "review_id": "7a4078b2a83db76d08d61e8d",
      "run_id": "20260907T155543-ce3781c4",
      "source_instructor_id": "rmp:371080",
      "source_review_id": "UmF0aW5nLTM2ODE1NDUw",
      "source_url": "https://www.ratemyprofessors.com/professor/371080",
      "type": "review"
    },
    {
      "instructor_name": "Wei-Yin Loh",
      "review_date": "2022-12-07 02:41:54 +0000 UTC",
      "review_id": "e85f32f7d995a8899ff15db6",
      "run_id": "20260907T155543-ce3781c4",
      "source_instructor_id": "rmp:371080",
      "source_review_id": "UmF0aW5nLTM2OTk5ODQz",
      "source_url": "https://www.ratemyprofessors.com/professor/371080",
      "type": "review"
    }
  ]
}
```

#### task hash

74fb0997943e888960bbc9e47db8c4fd12e4292d55c20509d8d89db6a9910f68

#### teaching history

WEI-YIN LOH is recorded teaching in Fall 2022, Spring 2026. Recorded history may be incomplete and does not establish a future schedule.

```json
{
  "citations": [
    {
      "course_id": "STAT 443",
      "run_id": "20260907T155543-ce3781c4",
      "section_number": 1,
      "source_course_id": "ea40447a-7fec-39ed-a440-a88544ba920c",
      "source_record": {
        "entity_id": "ea40447a-7fec-39ed-a440-a88544ba920c",
        "file": "tables/observations.parquet",
        "kind": "grades",
        "source": "madgrades"
      },
      "table": "section_grades_latest",
      "term_id": "1232",
      "type": "grade"
    },
    {
      "course_id": "STAT 443",
      "run_id": "20260907T155543-ce3781c4",
      "section_number": 2,
      "source_course_id": "ea40447a-7fec-39ed-a440-a88544ba920c",
      "source_record": {
        "entity_id": "ea40447a-7fec-39ed-a440-a88544ba920c",
        "file": "tables/observations.parquet",
        "kind": "grades",
        "source": "madgrades"
      },
      "table": "section_grades_latest",
      "term_id": "1232",
      "type": "grade"
    },
    {
      "course_id": "STAT 443",
      "run_id": "20260907T155543-ce3781c4",
      "section_number": 1,
      "source_course_id": "ea40447a-7fec-39ed-a440-a88544ba920c",
      "source_record": {
        "entity_id": "ea40447a-7fec-39ed-a440-a88544ba920c",
        "file": "tables/observations.parquet",
        "kind": "grades",
        "source": "madgrades"
      },
      "table": "section_grades_latest",
      "term_id": "1264",
      "type": "grade"
    },
    {
      "course_id": "STAT 443",
      "run_id": "20260907T155543-ce3781c4",
      "section_number": 2,
      "source_course_id": "ea40447a-7fec-39ed-a440-a88544ba920c",
      "source_record": {
        "entity_id": "ea40447a-7fec-39ed-a440-a88544ba920c",
        "file": "tables/observations.parquet",
        "kind": "grades",
        "source": "madgrades"
      },
      "table": "section_grades_latest",
      "term_id": "1264",
      "type": "grade"
    }
  ]
}
```

#### term id

1272

#### term name

2026 Fall

#### version

2

### requirements

#### nodes

```json
[
  {
    "children": [
      "n1",
      "n2",
      "n3",
      "n4"
    ],
    "condition": null,
    "course": null,
    "evidence": "STAT 333,340, graduate/professional standing, or declared in Statistics VISP",
    "id": "n0",
    "kind": "any"
  },
  {
    "children": [],
    "condition": null,
    "course": {
      "course_number": 333,
      "minimum_grade": null,
      "subjects": [
        "STAT"
      ],
      "timing": "prior"
    },
    "evidence": "STAT 333",
    "id": "n1",
    "kind": "course"
  },
  {
    "children": [],
    "condition": null,
    "course": {
      "course_number": 340,
      "minimum_grade": null,
      "subjects": [
        "STAT"
      ],
      "timing": "prior"
    },
    "evidence": "340",
    "id": "n2",
    "kind": "course"
  },
  {
    "children": [],
    "condition": "graduate/professional standing",
    "course": null,
    "evidence": "graduate/professional standing",
    "id": "n3",
    "kind": "condition"
  },
  {
    "children": [],
    "condition": "declared in Statistics VISP",
    "course": null,
    "evidence": "declared in Statistics VISP",
    "id": "n4",
    "kind": "condition"
  }
]
```

#### notes

None recorded.

#### root

n0

#### status

parsed

### instructors

None recorded.

### offerings

None recorded.

### sections

None recorded.

### grade instructors

```json
[
  {
    "instructor_uid": "instructor_20bff09bd8c7abcebab15a2f",
    "source": "madgrades",
    "source_instructor_id": "2602108",
    "identity_basis": "source_id",
    "identity_status": "source_identified",
    "name": "WEI-YIN LOH",
    "email": null,
    "first_observed_at": "2026-09-06 23:14:58.172943+00:00",
    "last_observed_at": "2026-09-07 15:55:43.033547+00:00",
    "ratings": {
      "review_count": 24,
      "quality": 3.62,
      "difficulty": 3.71,
      "quality_count": 24,
      "difficulty_count": 24,
      "profile_id": "rmp:371080",
      "source_url": "https://www.ratemyprofessors.com/professor/371080",
      "match_basis": "exact_name",
      "observed_at": "2026-09-07 15:59:34.335211+00:00",
      "courses": {
        "course_3c746e3add116a6aa2b49441": {
          "review_count": 4,
          "quality": 4.25,
          "difficulty": 4,
          "quality_count": 4,
          "difficulty_count": 4
        },
        "course_bbb14bdd283ccb9368b888c2": {
          "review_count": 3,
          "quality": 2,
          "difficulty": 3.67,
          "quality_count": 3,
          "difficulty_count": 3
        },
        "course_d2bc347ed5e5c07178b1f567": {
          "review_count": 2,
          "quality": 2,
          "difficulty": 4.5,
          "quality_count": 2,
          "difficulty_count": 2
        },
        "course_2c47f118c8b20b84e9ca9d5d": {
          "review_count": 1,
          "quality": 3,
          "difficulty": 5,
          "quality_count": 1,
          "difficulty_count": 1
        },
        "course_1ea543c8a9e3b7f76f3a2d83": {
          "review_count": 1,
          "quality": 4,
          "difficulty": 3,
          "quality_count": 1,
          "difficulty_count": 1
        },
        "course_096be5272e913d9005e3298b": {
          "review_count": 2,
          "quality": 4.5,
          "difficulty": 3,
          "quality_count": 2,
          "difficulty_count": 2
        }
      },
      "bayesian_quality": 3.63803899252118,
      "prior_mean": 3.6596857835465957,
      "prior_weight": 20
    },
    "grade_statistics": {
      "gpa": 3.512,
      "graded": 1421,
      "counts": [
        632,
        434,
        239,
        45,
        52,
        10,
        9
      ],
      "sections": 82
    },
    "instructor_url": "/instructors/WEI-YIN_LOH--instructor_20bff09bd8c7abcebab15a2f"
  },
  {
    "instructor_uid": "instructor_26b12c9de8f3be3e7f69746c",
    "source": "madgrades",
    "source_instructor_id": "6024940",
    "identity_basis": "source_id",
    "identity_status": "source_identified",
    "name": "SIYU WANG",
    "email": null,
    "first_observed_at": "2026-09-06 23:14:58.172943+00:00",
    "last_observed_at": "2026-09-07 15:55:43.033547+00:00",
    "grade_statistics": {
      "gpa": 3.22,
      "graded": 75,
      "counts": [
        20,
        24,
        16,
        7,
        6,
        0,
        2
      ],
      "sections": 3
    },
    "instructor_url": "/instructors/SIYU_WANG"
  },
  {
    "instructor_uid": "instructor_1e7afb171cd31321e0bc3f60",
    "source": "madgrades",
    "source_instructor_id": "6239626",
    "identity_basis": "source_id",
    "identity_status": "source_identified",
    "name": "ZHIHAO ZHAO",
    "email": null,
    "first_observed_at": "2026-09-06 23:14:58.172943+00:00",
    "last_observed_at": "2026-09-07 15:55:43.033547+00:00",
    "grade_statistics": {
      "gpa": 3.672,
      "graded": 58,
      "counts": [
        27,
        30,
        0,
        0,
        0,
        0,
        1
      ],
      "sections": 2
    },
    "instructor_url": "/instructors/ZHIHAO_ZHAO--instructor_1e7afb171cd31321e0bc3f60"
  }
]
```

### grades

```json
[
  {
    "run_id": "20260907T155543-ce3781c4",
    "semester": "1272",
    "observed_at": "2026-09-07 15:55:43.033547+00:00",
    "course_id": "STAT 443",
    "course_uid": "course_bbb14bdd283ccb9368b888c2",
    "term_id": "1232",
    "term_name": "Fall 2022",
    "instructors": [
      "SIYU WANG",
      "Wei-Yin Loh"
    ],
    "a": 14,
    "ab": 16,
    "b": 11,
    "bc": 4,
    "c": 0,
    "d": 0,
    "f": 1,
    "satisfactory": 0,
    "unsatisfactory": 0,
    "credit": 0,
    "no_credit": 0,
    "passed": 0,
    "incomplete": 0,
    "no_work": 0,
    "not_reported": 0,
    "other": 0,
    "total": 46,
    "source_aliases": [
      "STAT 443"
    ]
  },
  {
    "run_id": "20260907T155543-ce3781c4",
    "semester": "1272",
    "observed_at": "2026-09-07 15:55:43.033547+00:00",
    "course_id": "STAT 443",
    "course_uid": "course_bbb14bdd283ccb9368b888c2",
    "term_id": "1264",
    "term_name": "Spring 2026",
    "instructors": [
      "Wei-Yin Loh",
      "Zhihao Zhao"
    ],
    "a": 27,
    "ab": 30,
    "b": 0,
    "bc": 0,
    "c": 0,
    "d": 0,
    "f": 1,
    "satisfactory": 0,
    "unsatisfactory": 0,
    "credit": 0,
    "no_credit": 0,
    "passed": 0,
    "incomplete": 0,
    "no_work": 0,
    "not_reported": 0,
    "other": 0,
    "total": 58,
    "source_aliases": [
      "STAT 443"
    ]
  }
]
```

### statistics

#### gpa

3.538

#### graded

104

#### counts

* 41
* 46
* 11
* 4
* 0
* 0
* 2

### grade conflicts

None recorded.

### evidence

#### history

* [/data/e243353dcb7d79b7247ced91d69443ef4c2a6349/history/course\_bbb14bdd283ccb9368b888c2-0.json](https://uwcourses.com/data/e243353dcb7d79b7247ced91d69443ef4c2a6349/history/course_bbb14bdd283ccb9368b888c2-0.json)

#### traces

* [/data/e243353dcb7d79b7247ced91d69443ef4c2a6349/traces/course\_bbb14bdd283ccb9368b888c2-0.json](https://uwcourses.com/data/e243353dcb7d79b7247ced91d69443ef4c2a6349/traces/course_bbb14bdd283ccb9368b888c2-0.json)

#### reviews

* [/data/e243353dcb7d79b7247ced91d69443ef4c2a6349/reviews/course\_bbb14bdd283ccb9368b888c2-0.json](https://uwcourses.com/data/e243353dcb7d79b7247ced91d69443ef4c2a6349/reviews/course_bbb14bdd283ccb9368b888c2-0.json)

#### results

* [/data/e243353dcb7d79b7247ced91d69443ef4c2a6349/results/course\_bbb14bdd283ccb9368b888c2-0.json](https://uwcourses.com/data/e243353dcb7d79b7247ced91d69443ef4c2a6349/results/course_bbb14bdd283ccb9368b888c2-0.json)

### revision

e243353dcb7d79b7247ced91d69443ef4c2a6349

## context

### all

#### term



#### gpa

3.5384615384615383

#### count

104

#### university

##### size

2060

##### gpa Percentile

31

##### count Percentile

66

##### median Count

73

##### histogram

| range   | count | current |
| ------- | ----- | ------- |
| 0.0–0.4 | 0     | false   |
| 0.4–0.8 | 0     | false   |
| 0.8–1.2 | 0     | false   |
| 1.2–1.6 | 0     | false   |
| 1.6–2.0 | 0     | false   |
| 2.0–2.4 | 1     | false   |
| 2.4–2.8 | 20    | false   |
| 2.8–3.2 | 193   | false   |
| 3.2–3.6 | 549   | true    |
| 3.6–4.0 | 1297  | false   |

#### departments

```json
[
  {
    "subject": "STAT",
    "comparison": {
      "size": 44,
      "gpaPercentile": 51,
      "countPercentile": 60,
      "medianCount": 83.5,
      "histogram": [
        {
          "range": "0.0–0.4",
          "count": 0,
          "current": false
        },
        {
          "range": "0.4–0.8",
          "count": 0,
          "current": false
        },
        {
          "range": "0.8–1.2",
          "count": 0,
          "current": false
        },
        {
          "range": "1.2–1.6",
          "count": 0,
          "current": false
        },
        {
          "range": "1.6–2.0",
          "count": 0,
          "current": false
        },
        {
          "range": "2.0–2.4",
          "count": 0,
          "current": false
        },
        {
          "range": "2.4–2.8",
          "count": 0,
          "current": false
        },
        {
          "range": "2.8–3.2",
          "count": 11,
          "current": false
        },
        {
          "range": "3.2–3.6",
          "count": 18,
          "current": true
        },
        {
          "range": "3.6–4.0",
          "count": 15,
          "current": false
        }
      ]
    }
  }
]
```

### terms

#### 1232

##### term

1232

##### gpa

3.369565217391304

##### count

46

##### university

###### size

1216

###### gpa Percentile

26

###### count Percentile

30

###### median Count

66

###### histogram

| range   | count | current |
| ------- | ----- | ------- |
| 0.0–0.4 | 0     | false   |
| 0.4–0.8 | 0     | false   |
| 0.8–1.2 | 0     | false   |
| 1.2–1.6 | 0     | false   |
| 1.6–2.0 | 0     | false   |
| 2.0–2.4 | 2     | false   |
| 2.4–2.8 | 14    | false   |
| 2.8–3.2 | 174   | false   |
| 3.2–3.6 | 356   | true    |
| 3.6–4.0 | 670   | false   |

##### departments

```json
[
  {
    "subject": "STAT",
    "comparison": {
      "size": 32,
      "gpaPercentile": 42,
      "countPercentile": 26,
      "medianCount": 60.5,
      "histogram": [
        {
          "range": "0.0–0.4",
          "count": 0,
          "current": false
        },
        {
          "range": "0.4–0.8",
          "count": 0,
          "current": false
        },
        {
          "range": "0.8–1.2",
          "count": 0,
          "current": false
        },
        {
          "range": "1.2–1.6",
          "count": 0,
          "current": false
        },
        {
          "range": "1.6–2.0",
          "count": 0,
          "current": false
        },
        {
          "range": "2.0–2.4",
          "count": 0,
          "current": false
        },
        {
          "range": "2.4–2.8",
          "count": 0,
          "current": false
        },
        {
          "range": "2.8–3.2",
          "count": 11,
          "current": false
        },
        {
          "range": "3.2–3.6",
          "count": 13,
          "current": true
        },
        {
          "range": "3.6–4.0",
          "count": 8,
          "current": false
        }
      ]
    }
  }
]
```

#### 1264

##### term

1264

##### gpa

3.6724137931034484

##### count

58

##### university

###### size

1283

###### gpa Percentile

47

###### count Percentile

43

###### median Count

66

###### histogram

| range   | count | current |
| ------- | ----- | ------- |
| 0.0–0.4 | 0     | false   |
| 0.4–0.8 | 0     | false   |
| 0.8–1.2 | 0     | false   |
| 1.2–1.6 | 0     | false   |
| 1.6–2.0 | 0     | false   |
| 2.0–2.4 | 1     | false   |
| 2.4–2.8 | 20    | false   |
| 2.8–3.2 | 130   | false   |
| 3.2–3.6 | 343   | false   |
| 3.6–4.0 | 789   | true    |

##### departments

```json
[
  {
    "subject": "STAT",
    "comparison": {
      "size": 26,
      "gpaPercentile": 84,
      "countPercentile": 32,
      "medianCount": 66,
      "histogram": [
        {
          "range": "0.0–0.4",
          "count": 0,
          "current": false
        },
        {
          "range": "0.4–0.8",
          "count": 0,
          "current": false
        },
        {
          "range": "0.8–1.2",
          "count": 0,
          "current": false
        },
        {
          "range": "1.2–1.6",
          "count": 0,
          "current": false
        },
        {
          "range": "1.6–2.0",
          "count": 0,
          "current": false
        },
        {
          "range": "2.0–2.4",
          "count": 0,
          "current": false
        },
        {
          "range": "2.4–2.8",
          "count": 0,
          "current": false
        },
        {
          "range": "2.8–3.2",
          "count": 10,
          "current": false
        },
        {
          "range": "3.2–3.6",
          "count": 9,
          "current": false
        },
        {
          "range": "3.6–4.0",
          "count": 7,
          "current": true
        }
      ]
    }
  }
]
```

### benchmarks

#### all

##### school

###### size

2060

###### gpa

3.6370487936353983

###### top Share

80.9690233932367

###### count

73

##### STAT

###### size

44

###### gpa

3.4680899397213705

###### top Share

71.28579540085639

###### count

83.5

#### terms

##### 1232

###### school

###### size

1216

###### gpa

3.575457431972425

###### top Share

77.33712216234007

###### count

66

###### STAT

###### size

32

###### gpa

3.4024781451477413

###### top Share

66.63145704464162

###### count

60.5

##### 1264

###### school

###### size

1283

###### gpa

3.6229729166451925

###### top Share

80.13669149396227

###### count

66

###### STAT

###### size

26

###### gpa

3.343399816676682

###### top Share

63.23102425546245

###### count

66

## instructor Trends

```json
[
  {
    "uid": "instructor_20bff09bd8c7abcebab15a2f",
    "name": "WEI-YIN LOH",
    "count": 104,
    "terms": [
      {
        "term": "1232",
        "count": 46,
        "sections": 2,
        "gpa": 3.369565217391304
      },
      {
        "term": "1264",
        "count": 58,
        "sections": 2,
        "gpa": 3.6724137931034484
      }
    ]
  },
  {
    "uid": "instructor_1e7afb171cd31321e0bc3f60",
    "name": "ZHIHAO ZHAO",
    "count": 58,
    "terms": [
      {
        "term": "1264",
        "count": 58,
        "sections": 2,
        "gpa": 3.6724137931034484
      }
    ]
  },
  {
    "uid": "instructor_26b12c9de8f3be3e7f69746c",
    "name": "SIYU WANG",
    "count": 46,
    "terms": [
      {
        "term": "1232",
        "count": 46,
        "sections": 2,
        "gpa": 3.369565217391304
      }
    ]
  }
]
```

## following

None recorded.
