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)
2019-03-03 23:36:54 rCBA: initialized
2019-03-03 23:36:54 rCBA: data 20x5
	 took: 0  s
Evaluate: 0.025260942378372175,0.7124731929626266,1
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.02335020530400252,0.659314637333512,1
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.020651740558700154,0.5806436498413152,1
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.017417951421740855,0.5244648222818351,1
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.01651040793834771,0.49924668571176395,1
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.013497177477894882,0.4555688718962734,1
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.011742845726489584,0.410380593234535,1
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.011627402209953576,0.4020944506856492,1
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.011626602767149767,0.34228435304798976,1
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 2
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.010630607193042103,0.3385333024567779,1
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 2
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.008925037981646088,0.3006087646407962,1
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 2
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.008133551773226623,0.29888215459209233,1
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 2
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.006924393099795185,0.24858616354080976,1
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.005638648808817193,0.20768210433308068,1
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:54 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0047080911107987445,0.19230137235273345,1
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.004690432564907582,0.1737907159622911,1
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.00426935772368599,0.15590010300700044,1
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.003499896674716745,0.1497022959466592,1
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0032668860788246648,0.14769040609504416,1
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.002747904275446696,0.14435423024290514,1
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0022596646173676824,0.14371938629090641,1
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.001920310576147871,0.12099578343776547,1
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0018580780669832286,0.11268310464704977,1
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.001732089735889771,0.0940797972712587,1
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.001504203962618355,0.0845709772748735,1
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0012189275864744281,0.07518926007753811,1
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0011529396863095601,0.06355707739006003,1
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.001067597300107441,0.05782256391629059,1
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.001024046963693505,0.04775566112173144,1
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 9.365462680454596E-4,0.04512704544355571,1
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 9.174715560491183E-4,0.038008188271782345,1
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 03, 2019 11:36:55 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (53)
Frequent patterns: 53
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
2019-03-03 23:36:55 rCBA: rules 0
	 took: 0.53  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