Running examples in ‘rCBA-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: frameToRules
> ### Title: Conversion of 'data.frame' to 'rules' from 'arules'
> ### Aliases: frameToRules
> 
> ### ** Examples
> 
> library("rCBA")
> data("iris")
> 
> output <- rCBA::buildFPGrowth(iris[sample(nrow(iris), 20),], "Species", parallel=FALSE)
2018-08-19 21:01:38 rCBA: initialized
2018-08-19 21:01:38 rCBA: data 20x5
	 took: 0  s
Evaluate: 3.9713777328687083E-4,0.06580288146341184,1
Aug 19, 2018 9:01:38 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:38 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 3.405517542077355E-4,0.06397720239558786,1
Aug 19, 2018 9:01:38 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:38 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 3.145257826269995E-4,0.05995546621453493,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 2.988290429224883E-4,0.049286919851758475,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 2.5902524656158497E-4,0.047954633957861245,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 2.533360491288699E-4,0.040007210346739416,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 2.397776601236396E-4,0.03423603721177596,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 2.0459500963786005E-4,0.03275895644679576,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 1.7868724640243136E-4,0.032385378338730696,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 1.5261457231392748E-4,0.02760507961433773,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 1.3707817543221496E-4,0.024169541320354315,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 1.251469643546449E-4,0.02066684726400464,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 1.0345305903419537E-4,0.02059369093717848,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 9.653197295493788E-5,0.019534983421117307,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 8.616567184743061E-5,0.01773098982099025,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 8.520941374638308E-5,0.015859525209076405,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 7.352110778270108E-5,0.014983899168078699,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 7.099298751280311E-5,0.012900628218181111,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 7.09618321474701E-5,0.010362208353128479,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 6.031542925319787E-5,0.009632732684116688,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 4.9294744735051114E-5,0.008437936554131978,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 4.418279855686399E-5,0.007498802682746072,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 4.13258630090125E-5,0.007050788875825329,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 3.56016655209015E-5,0.00679425208486293,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 3.384147083483818E-5,0.005447033345354053,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 2.800144165721414E-5,0.0053268542583748265,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 2.61005908996375E-5,0.004410259735623736,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 2.1167962061596372E-5,0.003934756905989041,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 1.8532584060986947E-5,0.0036744861962350176,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 1.852113881793943E-5,0.0033965671976992308,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 1.5619114555067747E-5,0.0031150281661196538,1
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Aug 19, 2018 9:01:39 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (47)
Frequent patterns: 47
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
2018-08-19 21:01:39 rCBA: rules 0
	 took: 0.79  s
> model <- as(output$model,"data.frame")
> 
> rules <- rCBA::frameToRules(model)
Error in `[.data.frame`(model, , 2:4) : undefined columns selected
Calls: <Anonymous> -> [ -> [.data.frame
Execution halted