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)
2019-03-20 23:42:57 rCBA: initialized
2019-03-20 23:42:57 rCBA: data 20x5
	 took: 0.02  s
Evaluate: 0.7345538073511657,0.21377805960352858,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 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: 0.5895983641205346,0.17736291636064805,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 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: 0.4967217244101775,0.17156122134100074,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 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: 0.4739347003771554,0.14048667904539322,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 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: 0.43773561696171065,0.1395418412164655,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 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: 0.39763977236162884,0.11279716108568626,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 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: 0.3934903255347066,0.09023983842088211,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 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: 0.3237796733248837,0.08444466910440276,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 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: 0.2647741613679842,0.06994637858559237,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 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: 0.2254495435754396,0.0626743678934013,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 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: 0.20322408443812548,0.06215204548199967,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 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: 0.1837121428702005,0.05066189726685575,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 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: 0.15164330766083475,0.042036702789637684,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 PM 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: 0.1351712946212853,0.03943384856183226,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 PM 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: 0.11561303036503734,0.038023651719610335,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 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: 0.09259617172381181,0.037723296300830676,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 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: 0.07782216204607352,0.03291007633093831,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 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: 0.06857847251200973,0.030502978524174152,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 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: 0.05745087632020674,0.025145183734052078,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 224
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.053898711612446845,0.02023750811841127,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 224
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0456071249942645,0.020069652798609894,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 224
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.038459516885135256,0.018407772435086546,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 224
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.03500473003912826,0.01525720659129637,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 224
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.029348329271124456,0.0142604727713933,4
Mar 20, 2019 11:42:57 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:58 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 224
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.029267386080005592,0.012150132508183595,4
Mar 20, 2019 11:42:58 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:58 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 224
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.02587754533699219,0.01054052117470548,4
Mar 20, 2019 11:42:58 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:58 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 224
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.02288042863274102,0.009459516837440358,4
Mar 20, 2019 11:42:58 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:58 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 224
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.02160102239806964,0.0076194510619155015,4
Mar 20, 2019 11:42:58 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:58 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 224
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.021537200765535468,0.006297262998726363,4
Mar 20, 2019 11:42:58 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:58 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 224
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.01986752098750997,0.005262545799887487,4
Mar 20, 2019 11:42:58 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:58 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 224
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
Evaluate: 0.01869978430062122,0.004545989567183446,4
Mar 20, 2019 11:42:58 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 20, 2019 11:42:58 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (51)
Frequent patterns: 456
Rules: 224
Cached
Final rules: 8
Accuracy: NaN
Best rules size: 0
2019-03-20 23:42:58 rCBA: rules 0
	 took: 1.59  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