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)
2019-03-17 23:42:14 rCBA: initialized
2019-03-17 23:42:14 rCBA: data 20x5
	 took: 0  s
Evaluate: 0.6120753504223089,0.1237187739592902,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 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: 0.4993833757566867,0.11630907678433819,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 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: 0.46167358049008883,0.11083041637497523,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 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: 0.4564199060821952,0.10359216577975898,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 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: 0.38976417898943566,0.08664522974043276,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 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: 0.3615794588489449,0.08659845584647444,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 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: 0.35710091030459534,0.07758647683870395,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 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: 0.35253667769236485,0.07218791445665389,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 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: 0.3116619462813851,0.06544069496810322,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 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: 0.25298416117306505,0.05476759827240529,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (3)
Frequent patterns: 3
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.2171735234331187,0.05113760878353983,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 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: 0.1748464970169814,0.04858803328724164,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (7)
Frequent patterns: 9
Rules: 5
Cached
Final rules: 3
Accuracy: NaN
Best rules size: 0
Evaluate: 0.142120359667053,0.042347670059491443,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (7)
Frequent patterns: 9
Rules: 5
Cached
Final rules: 3
Accuracy: NaN
Best rules size: 0
Evaluate: 0.14041325869736124,0.03719654049151116,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (7)
Frequent patterns: 9
Rules: 5
Cached
Final rules: 3
Accuracy: NaN
Best rules size: 0
Evaluate: 0.13298020249758302,0.031441960691803064,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (7)
Frequent patterns: 9
Rules: 5
Cached
Final rules: 3
Accuracy: NaN
Best rules size: 0
Evaluate: 0.12840388721836413,0.028674394740722236,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (7)
Frequent patterns: 9
Rules: 5
Cached
Final rules: 3
Accuracy: NaN
Best rules size: 0
Evaluate: 0.1201609757904798,0.028292764019276037,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (7)
Frequent patterns: 9
Rules: 5
Cached
Final rules: 3
Accuracy: NaN
Best rules size: 0
Evaluate: 0.10137915847497311,0.0238660139138798,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 35
Rules: 18
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.08879443205789518,0.020999970651122975,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 35
Rules: 18
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.08017671487499392,0.01962245925879157,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 35
Rules: 18
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.07885331013518726,0.019047655545984272,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 35
Rules: 18
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.06856025679534537,0.017788832639145068,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 35
Rules: 18
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0584540989741942,0.014835160729260803,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 455
Rules: 223
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.052885224446484275,0.012409679125098758,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 455
Rules: 223
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.04614449456734585,0.00995653878598002,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 455
Rules: 223
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.04514393278614148,0.009444347885852663,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 455
Rules: 223
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.04280730060197039,0.008245601588308444,4
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:14 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 455
Rules: 223
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.03784922534062543,0.0068351991746940614,4
Mar 17, 2019 11:42:15 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:15 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 455
Rules: 223
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.036534857741906485,0.005678723134901186,4
Mar 17, 2019 11:42:15 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:15 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 455
Rules: 223
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0297578007008149,0.00548619326367383,4
Mar 17, 2019 11:42:15 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:15 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 455
Rules: 223
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.02676326512909571,0.005213397837118291,4
Mar 17, 2019 11:42:15 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 17, 2019 11:42:15 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 455
Rules: 223
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
2019-03-17 23:42:15 rCBA: rules 0
	 took: 0.89  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