在 matplotlib 或 R 中重现线图

Reproduce line plot in matplotlib or R

我遇到了精彩的 figure,它总结了(科学)作者多年来的合作。下面贴图

每条竖线代表一位作者。每条垂直线的开始对应于相关作者收到她的第一个合作者的年份(即,当她变得活跃并因此成为合作网络的一部分时)。作者根据他们在去年(即 2010 年)拥有的合作者总数进行排名。颜色表示多年来每位作者的合作者数量如何增加(从活跃到 2010 年)。

我有一个类似的数据集;我的数据集中有关键字而不是作者。每个数值表示特定年份的术语频率。数据如下:

Year Term1 Term2 Term3 Term4
1966     0     1     1     4
1967     1     5     0     0
1968     2     1     0     5
1969     5     0     0     2

例如,Term2 首次出现在 1967 年,频率为 1,而 Term4 首次出现在 1966 年,频率为 4。完整数据集可用 here

图表看起来很不错,所以我尝试重现它。结果比我想象的要复杂一些。

df=read.table("test_data.txt",header=T,sep=",")
#turn O into NA until >0 then keep values
df2=data.frame(Year=df$Year,sapply(df[,!colnames(df)=="Year"],function(x) ifelse(cumsum(x)==0,NA,x)))
#turn dataframe to a long format 
library(reshape)
molten=melt(df2,id.vars = "Year")
#Create a new value to measure the increase over time: I used a log scale to avoid a few classes overshadowing the others.
#The "increase" is measured as the cumsum, ave() is used to get cumsum to work with NA's and tapply to group on "variable"
molten$inc=log(Reduce(c,tapply(molten$value,molten$variable,function(x) ave(x,is.na(x),FUN=cumsum)))+1)
#reordering of variable according to max increase
#this dataframe is sorted in descending order according to the maximum increase"
library(dplyr)
df_order=molten%>%group_by(variable)%>%summarise(max_inc=max(na.omit(inc)))%>%arrange(desc(max_inc))
#this allows to change the levels of variable so that variable is ranked in the plot according to the highest value of "increase"
molten$variable<-factor(molten$variable,levels=df_order$variable)
#plot
ggplot(molten)+
  theme_void()+ #removes axes, background, etc...
  geom_line(aes(x=variable,y=Year,colour=inc),size=2)+
  theme(axis.text.y = element_text())+
  scale_color_gradientn(colours=c("red","green","blue"),na.value = "white")# set the colour gradient

给出:

不如论文中的好,但这是一个开始。