Running examples in 'rCBA-Ex.R' failed
The error most likely occurred in:

> ### 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)
2019-02-26 07:41:22 rCBA: initialized
2019-02-26 07:41:22 rCBA: data 20x5
	 took: 0  s
Evaluate: 0.058929782969147415,0.7413923111649742,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 0
Cached
Final rules: 0
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.05602494194405035,0.68370768623418,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 0
Cached
Final rules: 0
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.049179252622662456,0.5973838294863555,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 0
Cached
Final rules: 0
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.04031959314792199,0.5748425865088238,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 0
Cached
Final rules: 0
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.04020111043922499,0.5412142425690667,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 0
Cached
Final rules: 0
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.032956162705724976,0.4922960749982265,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 0
Cached
Final rules: 0
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.02752723892981598,0.41371255767118387,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 0
Cached
Final rules: 0
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.025449033331710762,0.35770180344955577,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 2
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.02040779967784866,0.35436486291702496,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 2
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.01785902830719177,0.32175398729806126,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 2
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.014685356587710497,0.32047460033603836,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 2
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.012860745662831049,0.3176559075112747,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 2
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.011569052349257064,0.2872841970041862,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 2
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.009348134145355224,0.2784380244448428,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 2
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.009191346436533871,0.2780033188123047,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 2
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.007922313049220255,0.2436770706147999,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.006532511222320227,0.24135015710953547,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.00610758404652568,0.20453774953386775,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.005837013291067909,0.18889757527883524,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.005022070322995073,0.16721595338121675,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.004729284642583615,0.15285041227097268,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.004217331754285001,0.15224761386448588,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.003476470457122617,0.13848703385518407,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.0031021432982838463,0.11389512527619296,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.0024842859921883724,0.100398706698672,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.0023776725022432396,0.08352831522840495,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.002051783653624167,0.07719534036825071,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.0019058912028427051,0.07331141588944366,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.0018274497491798237,0.07258523844255431,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.001574708649314886,0.06216900003301329,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
Evaluate: 0.0013145081970611131,0.05309567258907778,1
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: start
Feb 26, 2019 7:41:22 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFORMATION: FPG: tree built (49)
Frequent patterns: 49
Rules: 3
Cached
Final rules: 1
Accuracy: 0.0
Best rules size: 0
2019-02-26 07:41:22 rCBA: rules 0
	 took: 0.23  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