我想知道是否有快速的方法来查找两个文本字符串之间的有向交集,例如:
t1 <- "I have achieved my goals over the past 20 years and look forward for my next chalanges"
t2 <- " have achieved goals and look my chalanges some other words bla bla"
t1 isContainedIn t2将返回7,因为t1中出现的7个单词也出现在t2中。 此外,t1和t2是数据框中的两列,因此我需要在整个数据框上应用该函数,并将结果列附加到我的原始数据框中。 这是我的数据框"data.selected"的样子:
keywords title
1 Samsung UN48H6350 48" Samsung UN48H6350 48" Full 1080p Smart HDTV 120Hz with Wi-Fi +$50 Visa Gift Card
2 Samsung UN48H6350 48" Samsung UN48H6350 48" Full HD Smart LED TV -Bundle- (See Below for Contents)
3 Samsung UN48H6350 48" Samsung UN48H6350 48" Class Full HD Smart LED TV -BUNDLE- See below Details
4 Samsung UN48H6350 48" Samsung UN48H6350 48" Full HD Smart LED TV With BD-H5100 Blu-ray Disc Player
5 Samsung UN48H6350 48" Samsung UN48H6350 48" Smart 1080p Clear Motion Rate 240 LED HDTV
6 Samsung UN48H6350 48" Samsung UN48H6350 - 48-Inch Full HD 1080p Smart HDTV 120Hz with Wi-Fi
7 Samsung UN48H6350 48" Samsung 6350 Series UN48H6350 48" 1080p HD LED LCD Internet TV NEW
8 Samsung UN48H6350 48" Samsung Un48h6350af 75" 1080p Led-lcd Tv - 16:9 - Hdtv 1080p - (un75h6350afxza)
9 Samsung UN48H6350 48" Samsung UN48H6350 - 48" HD 1080p Smart HDTV 120Hz Bundle
10 Samsung UN48H6350 48" Samsung UN48H6350 - 48-Inch Full HD 1080p Smart HDTV 120Hz with Wi-Fi, (R#416)