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)
2019-03-08 11:35:40 rCBA: initialized
2019-03-08 11:35:40 rCBA: data 20x5
	 took: 0.02  s
Evaluate: 0.5160738531770422,0.5239209467300667,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM 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: 0.4948423783891968,0.5075939161216607,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM 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: 0.4541386279538517,0.5018492103612847,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM 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: 0.3719398876114385,0.41156325988232306,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM 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: 0.34580668156828337,0.3403110886715248,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM 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: 0.31880798790745335,0.27929555919214105,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM 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: 0.2727073732031868,0.2723718536779556,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM 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: 0.23398285217966275,0.24557283292055507,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM 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: 0.21093780839064513,0.2237312044472092,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM 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: 0.20058764947660462,0.1834311015690842,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM 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: 0.191140878770718,0.16897696155977604,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM 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: 0.1803361026824898,0.16481749243519464,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM 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: 0.16989322859289488,0.13836834384974564,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 8
Rules: 5
Cached
Final rules: 3
Accuracy: NaN
Best rules size: 0
Evaluate: 0.14965155551022555,0.1170942266352695,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 8
Rules: 5
Cached
Final rules: 3
Accuracy: NaN
Best rules size: 0
Evaluate: 0.14179531648364432,0.10383311365202552,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 8
Rules: 5
Cached
Final rules: 3
Accuracy: NaN
Best rules size: 0
Evaluate: 0.13152564283521695,0.09258035274050558,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 8
Rules: 5
Cached
Final rules: 3
Accuracy: NaN
Best rules size: 0
Evaluate: 0.1279950680244895,0.08571305976766798,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 8
Rules: 5
Cached
Final rules: 3
Accuracy: NaN
Best rules size: 0
Evaluate: 0.12020240211181611,0.078393713164115,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 8
Rules: 5
Cached
Final rules: 3
Accuracy: NaN
Best rules size: 0
Evaluate: 0.11742067104588509,0.06614052703641818,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 35
Rules: 16
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.09426552785534925,0.06468470735747596,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 35
Rules: 16
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.08809351871539231,0.053265500568042225,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 35
Rules: 16
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.07579086866253876,0.04379527805884775,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 35
Rules: 16
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.07238121711219953,0.0429410930876109,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 35
Rules: 16
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.06730015243096119,0.04068163303714632,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 35
Rules: 16
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.060085002528902635,0.03262505882461614,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 35
Rules: 16
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.05741434066002915,0.0290499921873788,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 225
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0542638343189082,0.024727432969107493,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 225
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.05059950774141057,0.023571534899930906,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 225
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.048872680012052035,0.020667587675824464,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 225
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.04271413290842269,0.019010134816746856,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 225
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.037579399290266186,0.015220839666766697,4
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 08, 2019 11:35:40 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 225
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
2019-03-08 11:35:41 rCBA: rules 0
	 took: 0.94  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