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)
2019-03-24 23:34:46 rCBA: initialized
2019-03-24 23:34:46 rCBA: data 20x5
	 took: 0  s
Evaluate: 0.14614195341951453,0.06799709924056563,4
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (5)
Frequent patterns: 6
Rules: 4
Cached
Final rules: 2
Accuracy: NaN
Best rules size: 0
Evaluate: 0.11742777734786415,0.06790270038899045,4
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 35
Rules: 17
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.10285662243846204,0.055476409884980135,4
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 35
Rules: 17
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.10005043150893539,0.048569386026629253,4
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 35
Rules: 17
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.09809383894209406,0.04559668818403681,4
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 35
Rules: 17
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0893845474445156,0.04537718304101063,4
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 35
Rules: 17
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.08602457305654618,0.04408435519888105,4
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 35
Rules: 17
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.08079014398939349,0.04240230780481294,4
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 35
Rules: 17
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.07478328543469778,0.0397091377133801,4
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 35
Rules: 17
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.06908699266500429,0.03396158689933465,4
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 35
Rules: 17
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.055395527220324946,0.03320595573809798,4
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.05539057239759823,0.0270455287100021,4
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:46 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.049576024409747524,0.026309661073601942,4
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.040759935157441356,0.022297882977537094,4
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.03529376255055941,0.01829785582874179,4
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.034201501650927155,0.017398560186810255,4
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.03212210677100853,0.016383865974463275,4
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.028052662669579516,0.014963326856919607,4
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.026792885779946263,0.012245770350241058,4
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.02197784685022997,0.011338004893063918,4
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0181628351283289,0.009690581391921882,4
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.016797112207236974,0.008940995701617245,4
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.013661689897122466,0.007513183356847262,4
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.013314586427334896,0.00628912744802952,4
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.01306457465268245,0.0054533219344383285,4
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.010594072841722247,0.004767101738906001,4
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.009206059360560776,0.004122994026754126,4
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.008345328528916687,0.0035906403091375146,4
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:47 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.008031207845590903,0.003584587124451843,4
Mar 24, 2019 11:34:48 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:48 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.008003748262727923,0.003031139249671767,4
Mar 24, 2019 11:34:48 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:48 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.006726303483750907,0.003026971494333992,4
Mar 24, 2019 11:34:48 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 24, 2019 11:34:48 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 459
Rules: 226
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
2019-03-24 23:34:48 rCBA: rules 0
	 took: 1.67  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