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)
2019-04-05 23:42:56 rCBA: initialized
2019-04-05 23:42:56 rCBA: data 20x5
	 took: 0  s
Evaluate: 0.8134880164338644,0.31044772158124245,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 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: 0.812916878244955,0.3007537373338774,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 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: 0.7734737960679199,0.26382827989811625,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 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: 0.6901831088880188,0.25843884136730466,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 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: 0.6580961833416372,0.24789032977130893,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 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: 0.6268825727181094,0.204359041612218,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 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: 0.6217682586535183,0.1637112342513388,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 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: 0.6187753384627833,0.15454805149648015,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 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: 0.5961365061586303,0.15212813634190217,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 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: 0.530474002908012,0.14051368998090508,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 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: 0.4430185029039295,0.12406793387004585,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 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: 0.41873230880481177,0.10625468025520597,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 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: 0.4047303955819359,0.10581104142580378,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 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: 0.36631659102633596,0.10109255946795584,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 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: 0.3115861201553348,0.08147833570330988,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (2)
Frequent patterns: 2
Rules: 2
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.31043021655887415,0.0759120700996131,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (2)
Frequent patterns: 2
Rules: 2
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.2746932151322907,0.07258110491393026,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (4)
Frequent patterns: 4
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.2649614423377638,0.06625841506441162,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (4)
Frequent patterns: 4
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.21547177859539018,0.05558246230395379,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (5)
Frequent patterns: 5
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.1815237584324931,0.04942095546368341,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (5)
Frequent patterns: 5
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.165071003625551,0.042808353038906045,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 6
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.14888012450920476,0.03605977348947351,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 6
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.12131266378372989,0.032614983022044144,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 6
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.10474248043735743,0.027392295209417432,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (19)
Frequent patterns: 19
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.10347625107551107,0.02300964212412298,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (19)
Frequent patterns: 19
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.09889013652871907,0.01967791153266453,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (19)
Frequent patterns: 19
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.09618552597519543,0.01917419678519871,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (19)
Frequent patterns: 19
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.08187505183299237,0.017562528161993777,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (19)
Frequent patterns: 19
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.07817981005584332,0.016507200126124943,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (19)
Frequent patterns: 19
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.06551363956642897,0.01606350477147123,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (19)
Frequent patterns: 19
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.061335064499856394,0.01400828606209408,1
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:42:56 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (19)
Frequent patterns: 19
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
2019-04-05 23:42:56 rCBA: rules 0
	 took: 0.47  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