追踪名字的受欢迎程度
获取这些年最流行的初生女婴的名字及其排名.
In[1]:=

girls = SortBy[
EntityList[
EntityClass[
"GivenName", {"Gender" -> "Female",
"Rank" -> Interval[{1, 10}]}]], #["Rank"] &]
Out[1]=

In[2]:=

ranksgirls =
Table[EntityValue[name,
Dated[EntityProperty["GivenName", "Rank"], All]], {name, girls}];
在对数图上绘制最近50年的排名,最流行的名字排在最上面.
In[3]:=

DateListStepPlot[ranksgirls,
ScalingFunctions -> {-Log[#] &, Exp[-#] &}, PlotLegends -> girls,
PlotTheme -> "Business", ImageSize -> 475,
PlotRange -> {{DateObject[{1965}], DateObject[{2015}]}, All}]
Out[3]=

In[4]:=

boys = SortBy[
EntityList[
EntityClass[
"GivenName", {"Gender" -> "Male",
"Rank" -> Interval[{1, 10}]}]], #["Rank"] &];
In[5]:=

ranksboys =
Table[EntityValue[name,
Dated[EntityProperty["GivenName", "Rank"], All]], {name, boys}];
查看男孩儿名字的排名,可以看出有些名字一直都很受欢迎.
In[6]:=

DateListStepPlot[ranksboys,
ScalingFunctions -> {-Log[#] &, Exp[-#] &}, PlotLegends -> boys,
PlotTheme -> "Business", ImageSize -> 475,
PlotRange -> {{DateObject[{1965}], DateObject[{2015}]}, All}]
Out[6]=
