数组索引越界异常(java查看索引索引是否存在)

user _ ratings _ matrix=training _ df.pivot (index=' userid '，columns='movieId '，values='rating ' )

users=user _ ratings _ matrix.index.values

print (' creatingcorateddataframe . ' )

withopen (similarities/userscorated.CSV '，' w ' ) as result_file:

打印(用户1、用户2、共享)、文件=result _ file () ) ) ) ) ) ) ) )。

打印(calculatingcoratedbetweenusers . ' )

forU1inTQDM(users，total=Len ) users ) ) :

for u2 in users:

movies _ u1=~NP.isnan (user _ ratings _ matrix.iloc (u1-1 ) ) )

movies _ U2=~NP.isnan (user _ ratings _ matrix.iloc (U2-1 ) ) )

ame _ movies=NP.logical _ and (movies _ u1，movies_u2 ) ) ) ) 652 )

num _ same _ movies=list (same _ movies ).count ) )。

print(f({U1}、{u2}、{num_same_movies} )、file=result_file () ) ) ) ) )。