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Description
English: Graph of dog age versus equivalent human age, grouped by dog size
Date
Source Own work
Author GeneParmesan66

Code used to generate plot:

# Dog years chart for wiki
library(tidyverse)
library(RColorBrewer)

# Create data
# Data from: https://pets.webmd.com/dogs/how-to-calculate-your-dogs-age
dog_years = c(1:16)
human_small = c(15, seq(24,80, by=4))
human_med = c(15, 24,28,32,36,42,47,51,56,60,65,69,74,78,83,87)
human_large = c(15,24,28,32,36,45,50,55,61,66,72,77,82,88,93,120)

# Get colours for plot
dcols <- brewer.pal(3, "Set1")

# Create data frame
data_frame(dog_years, human_small, human_med, human_large) %>% 
  # Gather the different columns to make group variable
  gather(key = size, value = human_years, human_small:human_large, factor_key = T) %>% arrange(dog_years) %>%
  # START PLOTTING
  ggplot(., aes(x=dog_years,y=human_years, group=size,colour=size))+geom_smooth(se=F)+
  # Label the legend
  scale_colour_manual(name = "Size of Dog",values=dcols,labels = c("Small (<20lb)","Medium (21-50lb)","Large (>50lb)"))+
  # Scale breaks and labels
  scale_x_continuous(breaks=c(seq(2,16,2)))+
  scale_y_continuous(breaks = c(seq(0,120,10)))+
  xlab("Dog's age")+ggtitle("Equivalent human age")+
  # Theme attributes
  theme(plot.background=element_blank(),
        panel.grid.major = element_line(colour = "lightgray"),
        axis.title = element_text(face="bold",size=15),
        axis.title.y=element_blank(),
        plot.title = element_text(size = 15, face="bold", hjust=-0.05),
        plot.margin = unit(c(1,1,1,1),"cm"),
        legend.text = element_text(size = 11),
        legend.title = element_text(face="bold",size=12),
        legend.position="right")

Licensing edit

I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
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You are free:
  • to share – to copy, distribute and transmit the work
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Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

File history

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Date/TimeThumbnailDimensionsUserComment
current01:48, 25 April 2018Thumbnail for version as of 01:48, 25 April 20183,600 × 2,700 (428 KB)GeneParmesan66 (talk | contribs)Flipped legend for more intuitive understanding and increased axis label size
01:19, 25 April 2018Thumbnail for version as of 01:19, 25 April 20183,600 × 2,700 (411 KB)GeneParmesan66 (talk | contribs)Clearer axis labels and text (hopefully)
01:03, 25 April 2018Thumbnail for version as of 01:03, 25 April 20181,200 × 900 (94 KB)GeneParmesan66 (talk | contribs)User created page with UploadWizard

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