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)
2019-03-19 11:44:16 rCBA: initialized
2019-03-19 11:44:16 rCBA: data 20x5
	 took: 0  s
Evaluate: 0.18208489379067982,0.16709492950355986,2
Mar 19, 2019 11:44:16 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:16 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: 0.15307827081005804,0.1567459051165381,2
Mar 19, 2019 11:44:16 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:16 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 7
Rules: 4
Cached
Final rules: 2
Accuracy: NaN
Best rules size: 0
Evaluate: 0.14129046861019984,0.14616627418573402,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 7
Rules: 4
Cached
Final rules: 2
Accuracy: NaN
Best rules size: 0
Evaluate: 0.11815481358698021,0.12276046868802942,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 7
Rules: 4
Cached
Final rules: 2
Accuracy: NaN
Best rules size: 0
Evaluate: 0.11097629639159956,0.12036608334528814,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 34
Rules: 15
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.09115734962650131,0.1153808694117807,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 34
Rules: 15
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.08529414964248741,0.098682221196014,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 34
Rules: 15
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.07453796789271441,0.08757029347229672,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 34
Rules: 15
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.07147935105365878,0.08387704952762993,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 34
Rules: 15
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.05991298306256308,0.07407595990511144,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 34
Rules: 15
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.05190633268981643,0.06300247089752681,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.044166695708167114,0.06236766090391054,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.03950104509096612,0.059480745619677214,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.03478266290359577,0.05734502271697366,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0309198833889944,0.04914964274579618,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.025940545587617,0.041300329333305866,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.021306291881018156,0.03960212573285513,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.019178170506435728,0.03894858559859657,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.017414248712158777,0.038674147429608736,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.014335961725542122,0.03129424747634035,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.013322767137482708,0.02756309530150662,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.012228721516416107,0.02265444323332017,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.012214596275674847,0.019356206260738588,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.009921215912181066,0.015909653407600536,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.008667685255348617,0.014901114446039693,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.008575783586313345,0.012815763260608796,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.007851042992683225,0.0107041757574774,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.007396485717071132,0.010522330826578639,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.006020484605538206,0.009597186326168607,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.005797668510442198,0.007724496064626222,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.005594457557911038,0.007103547724385473,2
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 19, 2019 11:44:17 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 202
Rules: 57
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
2019-03-19 11:44:17 rCBA: rules 0
	 took: 0.99  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