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)
2019-03-13 23:40:02 rCBA: initialized
2019-03-13 23:40:02 rCBA: data 20x5
	 took: 0.02  s
Evaluate: 0.6918106544866583,0.5499552521267315,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 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: 0.6391495301269543,0.4538417604329964,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 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: 0.5575485325544296,0.45033199145079655,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 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: 0.5344810156279474,0.36478184805784863,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 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: 0.4419081185592275,0.3538819623792359,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 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: 0.4146254903740711,0.2976190755568087,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 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: 0.33311050663776076,0.23925617802804297,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 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: 0.30367300899070165,0.20441326873406943,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 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: 0.2531381476987169,0.1747407094294764,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 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: 0.22107016705726923,0.14437368765830724,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 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: 0.2091711022677808,0.14106359797016124,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 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: 0.1747513452326856,0.13357671330829404,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 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: 0.1638958553439196,0.11878044797028131,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 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: 0.14953098703084391,0.09892518852255565,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 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: 0.14637852878369,0.09611546568853849,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 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: 0.1354347427199291,0.09273822602036201,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 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: 0.11207989765435457,0.088308778436741,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 17
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.10231047338276279,0.08380943832262008,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 17
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.09435867153074101,0.08312076860199256,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 17
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0844163138314464,0.07741042239704107,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 17
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.07564878529013441,0.07386043219022781,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 17
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.06616507606579355,0.07137429209215168,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 17
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.06055343276365248,0.06845659347115104,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 17
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.060351246619335885,0.06439390071064725,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 17
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.05318303873373216,0.054932651680666925,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0513826280235959,0.05381564198403545,1
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:02 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0492752023434183,0.043314299858856445,1
Mar 13, 2019 11:40:03 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:03 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.04626212531018406,0.0403427398501508,1
Mar 13, 2019 11:40:03 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:03 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.041113895716420296,0.03377185502388328,1
Mar 13, 2019 11:40:03 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:03 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.034676783350244066,0.030798170807256355,1
Mar 13, 2019 11:40:03 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:03 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0321601519999737,0.02883918812345134,1
Mar 13, 2019 11:40:03 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 13, 2019 11:40:03 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
2019-03-13 23:40:03 rCBA: rules 0
	 took: 0.68  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