annotate

django Count aggregate is not working as I intended

django Count aggregate is not working as I intended Question: It’s a code that reproduces the problem I experienced. models.py from django.db import models class User(models.Model): pass class Group(models.Model): users = models.ManyToManyField( User, related_name=’groups’, ) class Notice(models.Model): groups = models.ManyToManyField( Group, related_name=’notices’, ) tests.py from django.test import TestCase from tests.models import User, Group, Notice from …

Total answers: 1

Difference between 'data' and 'axes fraction' in matplotlib?

Difference between 'data' and 'axes fraction' in matplotlib? Question: What does xycoords=(‘data’,’axes fraction’) mean? I have read https://matplotlib.org/stable/tutorials/text/annotations.html and it says that ‘data’ uses the axes data coordinate system, what does this mean? According to https://matplotlib.org/stable/tutorials/advanced/transforms_tutorial.html ‘data’ is the coordinate system of the data in the Axes; (0, 0) is bottom left of the axes, …

Total answers: 1

Label python data points on plot

Label python data points on plot Question: I searched for ages (hours which is like ages) to find the answer to a really annoying (seemingly basic) problem, and because I cant find a question that quite fits the answer I am posting a question and answering it in the hope that it will save someone …

Total answers: 2

How to fix overlapping annotations / text

How to fix overlapping annotations / text Question: I’m trying to stop annotation text overlapping in my graphs. The method suggested in the accepted answer to Matplotlib overlapping annotations looks extremely promising, however is for bar graphs. I’m having trouble converting the “axis” methods over to what I want to do, and I don’t understand …

Total answers: 5

Scatter plot with different text at each data point

Scatter plot with different text at each data point Question: I am trying to make a scatter plot and annotate data points with different numbers from a list. So, for example, I want to plot y vs x and annotate with corresponding numbers from n. y = [2.56422, 3.77284, 3.52623, 3.51468, 3.02199] z = [0.15, …

Total answers: 9

In django, is there a way to directly annotate a query with a related object in single query?

In django, is there a way to directly annotate a query with a related object in single query? Question: Consider this query: query = Novel.objects.< …some filtering… >.annotate( latest_chapter_id=Max(“volume__chapter__id”) ) Actually what I need is to annotate each Novel with its latest Chapter object, so after this query, I have to execute another query to …

Total answers: 4