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)
2019-03-10 23:38:10 rCBA: initialized
2019-03-10 23:38:10 rCBA: data 20x5
	 took: 0  s
Evaluate: 0.4232437245696187,0.9553082002243896,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (0)
Frequent patterns: 0
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.4224709120837647,0.9366552860622125,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (0)
Frequent patterns: 0
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.3552774285730201,0.8925488940168017,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (0)
Frequent patterns: 0
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.308427419689791,0.885547791977952,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (2)
Frequent patterns: 2
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.2984577943643475,0.8428584079912504,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (2)
Frequent patterns: 2
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.2783163225747124,0.7378684935282926,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (3)
Frequent patterns: 3
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.23847660116218805,0.6982050308975408,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (3)
Frequent patterns: 3
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.21919715675720647,0.6620909486397517,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (4)
Frequent patterns: 4
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.2129178760798063,0.6011542389978828,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (4)
Frequent patterns: 4
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.19743686249413978,0.5358372746076852,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (4)
Frequent patterns: 4
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.18654563034502294,0.47976236941814215,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (4)
Frequent patterns: 4
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.1836536608920084,0.4618297939502176,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (4)
Frequent patterns: 4
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.17484168668728972,0.44217726656978196,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 7
Rules: 1
Cached
Final rules: 2
Accuracy: NaN
Best rules size: 0
Evaluate: 0.15446184748298256,0.4064522541994307,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 7
Rules: 1
Cached
Final rules: 2
Accuracy: NaN
Best rules size: 0
Evaluate: 0.13732246435042983,0.3371623772426121,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 7
Rules: 3
Cached
Final rules: 2
Accuracy: NaN
Best rules size: 0
Evaluate: 0.11794757303207672,0.3118493137110827,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 7
Rules: 3
Cached
Final rules: 2
Accuracy: NaN
Best rules size: 0
Evaluate: 0.11314848666150862,0.25245232184334376,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 31
Rules: 13
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.10954965882395937,0.2496071579132344,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 31
Rules: 13
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.10444021643343437,0.2213301458230637,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 31
Rules: 13
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.10146785134207664,0.18302546618122012,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 31
Rules: 13
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.09492654763693831,0.15690368780259822,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 31
Rules: 13
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.08302372319197046,0.13670255802063902,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 31
Rules: 13
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0669360051611936,0.11027529916940411,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 31
Rules: 13
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.059641985334478474,0.09429757034947109,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 31
Rules: 13
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.05338411543581711,0.09090876142238305,2
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:10 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 208
Rules: 60
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.043279556939213266,0.07292824370628233,2
Mar 10, 2019 11:38:11 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:11 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 208
Rules: 60
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.041496233460307674,0.06867093447957193,2
Mar 10, 2019 11:38:11 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:11 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 208
Rules: 60
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.033963367791120413,0.0627792838086984,2
Mar 10, 2019 11:38:11 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:11 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 208
Rules: 60
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.030796315300957316,0.060279425110862955,2
Mar 10, 2019 11:38:11 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:11 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 208
Rules: 60
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.027632164211051392,0.04873029628960614,2
Mar 10, 2019 11:38:11 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:11 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 208
Rules: 60
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.023708203248805834,0.04053832966686585,2
Mar 10, 2019 11:38:11 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 10, 2019 11:38:11 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 208
Rules: 60
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
2019-03-10 23:38:11 rCBA: rules 0
	 took: 0.77  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