Add analysis function

This commit is contained in:
Vivek Santayana 2023-03-04 18:56:34 +00:00
parent 1026cc71a9
commit 3714919ba5

View File

@ -1,4 +1,4 @@
from ..models import Dataset
from ..models import Dataset, Test
from ..tools.logs import write
from flask import current_app as app
@ -7,6 +7,8 @@ from flask.helpers import abort, flash, redirect, url_for
import json
from pathlib import Path
from random import shuffle
from statistics import mean, median, stdev
from typing import Union
from functools import wraps
def load(filename:str):
@ -84,4 +86,63 @@ def check_dataset_exists(function):
flash('There are no available question datasets. Please upload a question dataset first, or use the question editor to create a new dataset.', 'error')
return redirect(url_for('admin._questions'))
return function(*args, **kwargs)
return wrapper
return wrapper
def check_test_exists(function):
@wraps(function)
def wrapper(*args, **kwargs):
try: tests = Test.query.all()
except Exception as exception:
write('system.log', f'Database error when checking existing datasets: {exception}')
return abort(500)
if not tests:
flash('There are no exams configured. Please create an exam first.', 'error')
return redirect(url_for('admin._tests'))
return function(*args, **kwargs)
return wrapper
def analyse(subject:Union[Dataset,Test]) -> dict:
output = {
'answers': {},
'entries': 0,
'grades': {
'merit': 0,
'pass': 0,
'fail': 0
},
'scores': {
'mean': 0,
'median': 0,
'stdev': 0
}
}
scores_raw = []
dataset = subject if isinstance(subject, Dataset) else subject.dataset
if isinstance(subject, Test):
for entry in subject.entries:
if entry.answers:
for question, answer in entry.answers.items():
if int(question) not in output['answers']: output['answers'][int(question)] = {}
if int(answer) not in output['answers'][int(question)]: output['answers'][int(question)][int(answer)] = 0
output['answers'][int(question)][int(answer)] += 1
if entry.result:
output['entries'] += 1
output['grades'][entry.result['grade']] += 1
scores_raw.append(int(entry.result['score']))
else:
for test in subject.tests:
output['entries'] += len(test.entries)
for entry in test.entries:
if entry.answers:
for question, answer in entry.answers.items():
if int(question) not in output['answers']: output['answers'][int(question)] = {}
if int(answer) not in output['answers'][int(question)]: output['answers'][int(question)][int(answer)] = 0
output['answers'][int(question)][int(answer)] += 1
if entry.result:
output['entries'] += 1
output['grades'][entry.result['grade']] += 1
scores_raw.append(entry.result['score'])
output['scores']['mean'] = mean(scores_raw)
output['scores']['median'] = median(scores_raw)
output['scores']['stdev'] = stdev(scores_raw, output['scores']['mean']) if len(scores_raw) > 1 else None
return output