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)
2019-04-07 21:39:46 rCBA: initialized
2019-04-07 21:39:46 rCBA: data 20x5
	 took: 0  s
Evaluate: 0.006996966573482477,0.15461012094943372,1
Apr 07, 2019 9:39:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0061242963202461035,0.13231406321310993,1
Apr 07, 2019 9:39:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.005449156338097416,0.12541655675537164,1
Apr 07, 2019 9:39:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.004630325326830278,0.11509908348050978,1
Apr 07, 2019 9:39:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0037786428140029428,0.11396575754164008,1
Apr 07, 2019 9:39:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.003125628840322308,0.09932489092136321,1
Apr 07, 2019 9:39:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0028971184643250165,0.08012464202040723,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0027944235255354215,0.07135444714301763,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0026187984591259,0.06229550105971895,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0022861259279644756,0.05323618670028018,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.002116388745604812,0.05171059257512964,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0017219436985449318,0.042679396557306015,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.001414014570211556,0.039283005076130556,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0011667797555757558,0.03788940278548767,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0010587444960947667,0.03107626356772863,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 8.506702196560032E-4,0.024862475672605005,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 7.542117275678919E-4,0.021777973247232962,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 6.833435176649974E-4,0.019583330700827472,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 6.500873499583886E-4,0.015891165175575556,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 6.401730781179485E-4,0.015741415939780776,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 5.871305848280836E-4,0.015018592874162885,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 5.079222697491587E-4,0.014893011580004707,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 4.8021372678748735E-4,0.013114693530289795,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 4.725022344460958E-4,0.011097761545855128,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 4.4735452297669717E-4,0.0094323632775502,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 4.35893790427873E-4,0.008979293784034451,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 4.3429739537468193E-4,0.008229352197001353,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 3.6616643989459055E-4,0.007145378756143513,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 2.989665929780828E-4,0.0058409224308303,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 2.4652562686522964E-4,0.00545538919597205,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 2.427962851857997E-4,0.004682578276416401,1
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 07, 2019 9:39:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 51
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
2019-04-07 21:39:47 rCBA: rules 0
	 took: 0.76  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