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 11:35:03 rCBA: initialized
2019-04-05 11:35:03 rCBA: data 20x5
	 took: 0  s
Evaluate: 0.28065908711523246,0.9817705849699722,1
Apr 05, 2019 11:35:03 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:03 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (3)
Frequent patterns: 3
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.2750656735147065,0.9358675198699009,1
Apr 05, 2019 11:35:03 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:03 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (3)
Frequent patterns: 3
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.26775803313417484,0.8190372527832046,1
Apr 05, 2019 11:35:03 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:03 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (3)
Frequent patterns: 3
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.26157537402242814,0.7166616351662692,1
Apr 05, 2019 11:35:03 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:03 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (3)
Frequent patterns: 3
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.2473528623219447,0.5801327483290772,1
Apr 05, 2019 11:35:03 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:03 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (3)
Frequent patterns: 3
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.21628199545439378,0.5411285923131025,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (5)
Frequent patterns: 5
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.21358560643305038,0.5281724313980457,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (5)
Frequent patterns: 5
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.17235611464859604,0.4940873180491727,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (7)
Frequent patterns: 7
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.16265505018823842,0.4892634614104848,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (7)
Frequent patterns: 7
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.13017883184212342,0.39517429461838405,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (7)
Frequent patterns: 7
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.1276459428319931,0.3408913743103546,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (7)
Frequent patterns: 7
Rules: 2
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.12671121178771957,0.3148268530735648,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (7)
Frequent patterns: 7
Rules: 2
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.1119838320285428,0.2962286578605685,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (15)
Frequent patterns: 15
Rules: 2
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.09472173158859767,0.25512582294398606,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (15)
Frequent patterns: 15
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.09056814307134867,0.2345375880570548,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (15)
Frequent patterns: 15
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.08368490734293156,0.1902488468246687,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (15)
Frequent patterns: 15
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.07204662166662475,0.16857487327956477,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (15)
Frequent patterns: 15
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.06658093048908502,0.13965161929790545,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (15)
Frequent patterns: 15
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.061921000633980997,0.11582276711951545,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (15)
Frequent patterns: 15
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.05770517845664429,0.10558753189843348,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 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: 0.05248749524304008,0.08463025051242552,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 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: 0.04962086869731695,0.07703883502523268,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 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: 0.042245399821589175,0.06584623715126024,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 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: 0.04057994442309669,0.0603296206674171,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 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: 0.035481267890645346,0.05451384226984149,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 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: 0.033529626833652064,0.04784874342573786,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 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: 0.027481212515461092,0.04042667043677065,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 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: 0.0230433636919773,0.03601968654061862,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 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: 0.02304018356465648,0.03493199823619518,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 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: 0.02110381109157784,0.03382959868446552,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 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: 0.01912104759208722,0.03186966117509468,1
Apr 05, 2019 11:35:04 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 05, 2019 11:35:04 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
2019-04-05 11:35:04 rCBA: rules 0
	 took: 0.69  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