福尔摩斯和华生

获取作家阿瑟·柯南·道尔的与福尔摩斯有关的几本小说.

In[1]:=

novels = {Entity["Book", "TheSignOfTheFour1890"], Entity["Book", "TheAdventuresOfSherlockHolmes"], Entity["Book", "TheHoundOfTheBaskervilles"], Entity["Book", "TheReturnOfSherlockHolmes1904"]};

In[2]:=

texts = EntityValue[novels, "Plaintext"];

找出两个主要角色被提到的次数.

In[3]:=

counts = WordCounts /@ texts;

In[4]:=

watson = counts[[All, "Watson"]]; holmes = counts[[All, "Holmes"]];

用全新 Callout 功能对结果绘图.

In[5]:=

callouts = Callout @@@ Transpose[{Transpose[{holmes, watson}], novels}];

In[6]:=

ListPlot[callouts, AxesLabel -> {"Holmes", "Watson"}, AspectRatio -> Automatic, AxesOrigin -> {0, 0}]

Out[6]=