annotate

问题 I want to add a formula with variables in it as a annotation onto my ggplot. regline1 <- 0.00 slope1 <- 1.00 dat <- as.data.frame(c(0,1)) dat[2] <- c(0,1) names(dat) <- c("foo","bar") p <- ggplot(dat, aes(foo, bar)) + coord_fixed(ratio = 1) + geom_point() + geom_abline(slope = slope1, intercept = intercept1, linetype = "dashed") + labs(x = substitute(y[H1]==i+s%*%x,list(i=format(intercept1, digits = 1), s= format(slope1, digits = 1)))) As you can see it is no problem for ggplot to evaluate

问题 I have a model in django app, with the following structure: class items(models.Model): name = models.CharField(max_length=50) location = models.CharField(max_length=3) I wanted to create a pivot table for the count of each location per each name/item, which I managed to do as per the following: queryset_res = items.objects.values('name')\ .annotate(NYC=Sum(Case(When(location='NYC', then=1),default=Value('0'),output_field=IntegerField())))\ .annotate(LND=Sum(Case(When(location='LND', then=1)

问题 I have a model in django app, with the following structure: class items(models.Model): name = models.CharField(max_length=50) location = models.CharField(max_length=3) I wanted to create a pivot table for the count of each location per each name/item, which I managed to do as per the following: queryset_res = items.objects.values('name')\ .annotate(NYC=Sum(Case(When(location='NYC', then=1),default=Value('0'),output_field=IntegerField())))\ .annotate(LND=Sum(Case(When(location='LND', then=1)

问题 I'd like to change the background color for my annotate text so that it's green and covers up anything behind it (like the horizontal line in the example below). How do I do that? ggplot() + geom_hline(yintercept=0) + annotate("text",x=0,y=0,label="Here is a line") 回答1: Try geom_label instead: ggplot() + geom_hline(yintercept = 0) + labs(x = "", y = "") + geom_label(aes(x = 0, y = 0, label = "Here is a line"), fill = "green") 回答2: Building on this answer, but avoiding the use of geom_label()

问题 I had no idea adding data to a queryset would be so hard. It's like, if it didn't come directly from the db then it might as well not exist. Even when I annotate, the new fields are 2nd class citizens and aren't always available. Why won't serialize capture my annotate fields? Model class Parc(models.Model): # Regular Django fields corresponding to the attributes in the # world borders shapefile. prop_id = models.IntegerField(unique=True) # OBJECTID: Integer (10.0) shp_id = models

问题 I'm trying to do some complex ordering based on promotions: an article is promoted every 7th day since creation (the articles expire after 30 days). My approach is to annotate the queryset with the number of days since it was created, but the value of the annotated field ( days_since_creation ), in my code, is always 0. from datetime import timedelta from django.test import TestCase from django.db.models import ExpressionWrapper, F from django.db.models.fields import IntegerField from django

问题 I'm trying to do some complex ordering based on promotions: an article is promoted every 7th day since creation (the articles expire after 30 days). My approach is to annotate the queryset with the number of days since it was created, but the value of the annotated field ( days_since_creation ), in my code, is always 0. from datetime import timedelta from django.test import TestCase from django.db.models import ExpressionWrapper, F from django.db.models.fields import IntegerField from django

问题 I'm trying to do some complex ordering based on promotions: an article is promoted every 7th day since creation (the articles expire after 30 days). My approach is to annotate the queryset with the number of days since it was created, but the value of the annotated field ( days_since_creation ), in my code, is always 0. from datetime import timedelta from django.test import TestCase from django.db.models import ExpressionWrapper, F from django.db.models.fields import IntegerField from django

问题 I'm trying to do some complex ordering based on promotions: an article is promoted every 7th day since creation (the articles expire after 30 days). My approach is to annotate the queryset with the number of days since it was created, but the value of the annotated field ( days_since_creation ), in my code, is always 0. from datetime import timedelta from django.test import TestCase from django.db.models import ExpressionWrapper, F from django.db.models.fields import IntegerField from django

问题 I'm trying to find out how to get a code history report in which I get the file version for each of code line. I don't need to get multiple rows for each code line. only one. The 'annotate' sub-command has many arguments and I can't find the good one for that purpose. Do you know how to get that? Many thanks 回答1: the file version for each of code line That almost looks like the last example of the cleartool annotate command: cleartool annotate -out - -fmt "%Vn |" -rm -nheader util.c Meaning: