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)
2019-04-19 11:49:04 rCBA: initialized
2019-04-19 11:49:04 rCBA: data 20x5
	 took: 0  s
Evaluate: 0.11254892446792819,0.006845850588905189,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (16)
Frequent patterns: 16
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.10540731675514864,0.0063041373979804746,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (16)
Frequent patterns: 16
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.08612117333025224,0.005165392442262974,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (16)
Frequent patterns: 16
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.08136534197511663,0.004293827875809208,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (16)
Frequent patterns: 16
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.06898357221942622,0.00401322476250663,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (16)
Frequent patterns: 16
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.05895914252954614,0.0037305431188304036,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (16)
Frequent patterns: 16
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.04831782639431536,0.0035806637102291086,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.03956717340073885,0.0031278577134343176,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.03277335102695142,0.0030255928115484536,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.02880527788009916,0.002625704529795162,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.02443188685674843,0.0023694676317712778,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.022787278177346288,0.0021599653001622664,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.021711973756787968,0.001907109629847443,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.018036696738196953,0.0017279215292896155,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.01692953034145018,0.0016245782393640364,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.013949015797499756,0.0014254753798241735,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.011987654751019797,0.0012896905640405808,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.011236458993553394,0.0010384642298941653,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.010256638921223598,9.114103437830758E-4,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.008228230594588375,7.6216879109545E-4,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.007858156219166617,6.265708163861968E-4,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.0066315423720102904,5.096299106330363E-4,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.005718757751423874,4.3844970455608523E-4,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.0050995314847358895,3.721231553759751E-4,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.004116035566703924,3.228432037099617E-4,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.0035233027198138746,3.013709911575329E-4,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.0030663074476737365,2.762819097513475E-4,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.00275519570746258,2.4587397904143486E-4,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.0024076679414302407,2.0836671275169927E-4,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.0021987665790323815,1.9688445244281716E-4,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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: 0.0019445159229713087,1.7861645049729999E-4,1
Apr 19, 2019 11:49:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 19, 2019 11:49:04 AM 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
2019-04-19 11:49:04 rCBA: rules 0
	 took: 0.65  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