R中的arpriori arules错误

Question

我使用R（3.4.0）中的arules包添加关联规则挖掘。我已经给出了以下代码的简化版本：

library(arules)
data <- paste("trans1 apple", "trans2 apple","trans2 orange","trans3     apple","trans3 orange","trans3 banana", sep ="\n")
write(data, file = "demo_single_1")
tr <- read.transactions("demo_single_1", format = "single", cols = c(1,2))
basket_rules <- apriori(tr,parameter = list(sup = 0.01, conf = 0.01,target="rules"))

apriori命令抛出以下错误：

Apriori

Parameter specification:
 confidence minval smax arem  aval originalSupport maxtime support minlen
   0.01    0.1    1 none FALSE            TRUE       5    0.01      1
 maxlen target   ext
 10  rules FALSE

Algorithmic control:
 filter tree heap memopt load sort verbose
0.1 TRUE TRUE  FALSE TRUE    2    TRUE

Absolute minimum support count: 0 

Error in apriori(tr, parameter = list(sup = 0.01, conf = 0.01, target = "rules")) : 
  object 'R_rapriori' not found

加载包时没有错误。

有人可以指导我如何解决此错误吗？

Answer 1

如果我运行你的代码，我会把它作为输出：

Apriori

Parameter specification:
 confidence minval smax arem  aval originalSupport maxtime support minlen maxlen
       0.01    0.1    1 none FALSE            TRUE       5    0.01      1     10
 target   ext
  rules FALSE

Algorithmic control:
 filter tree heap memopt load sort verbose
    0.1 TRUE TRUE  FALSE TRUE    2    TRUE

Absolute minimum support count: 0 

set item appearances ...[0 item(s)] done [0.00s].
set transactions ...[3 item(s), 3 transaction(s)] done [0.00s].
sorting and recoding items ... [3 item(s)] done [0.00s].
creating transaction tree ... done [0.00s].
checking subsets of size 1 2 3 done [0.00s].
writing ... [12 rule(s)] done [0.00s].
creating S4 object  ... done [0.00s].

没有任何错误。