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)
2019-03-29 11:33:49 rCBA: initialized
2019-03-29 11:33:49 rCBA: data 20x5
	 took: 0  s
Evaluate: 0.36729673638390925,0.2890832875974366,2
Mar 29, 2019 11:33:49 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:49 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: 0.35393041851927026,0.27124453979851315,2
Mar 29, 2019 11:33:49 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:49 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: 0.2893717169104878,0.25269536819948574,2
Mar 29, 2019 11:33:49 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:49 AM 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: 0.2558993992787425,0.21939354828307522,2
Mar 29, 2019 11:33:49 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:49 AM 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: 0.24321805114256045,0.20067734170410037,2
Mar 29, 2019 11:33:49 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:49 AM 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: 0.21237486805810546,0.194780240635295,2
Mar 29, 2019 11:33:49 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:49 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: 0.18943200103880475,0.16685391278713435,2
Mar 29, 2019 11:33:49 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:49 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: 0.1689898279712604,0.16587150396244962,2
Mar 29, 2019 11:33:49 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:49 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: 0.13740307313983358,0.15265857382213657,2
Mar 29, 2019 11:33:49 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:49 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: 0.1235108577340167,0.13999058288740135,2
Mar 29, 2019 11:33:49 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:49 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: 0.11219999457130958,0.1373006527240372,2
Mar 29, 2019 11:33:49 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:49 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: 0.10803089055224986,0.11271907040215995,2
Mar 29, 2019 11:33:49 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:49 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: 0.09413781019218877,0.11268725887453496,2
Mar 29, 2019 11:33:49 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:49 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: 0.08719916028155095,0.09338787279439191,2
Mar 29, 2019 11:33:49 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:49 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: 0.07129318091144239,0.09132491726572377,2
Mar 29, 2019 11:33:49 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:49 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: 0.05862414319775708,0.0764407366623888,2
Mar 29, 2019 11:33:49 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:49 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: 0.05585104609395725,0.07500422530629927,2
Mar 29, 2019 11:33:50 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:50 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: 0.05557590880674178,0.0699730494737219,2
Mar 29, 2019 11:33:50 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:50 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: 0.05402612164487738,0.06809185799593717,2
Mar 29, 2019 11:33:50 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:50 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: 0.05210728549749546,0.06449723569167187,2
Mar 29, 2019 11:33:50 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:50 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: 0.04826675702120273,0.059910905350113425,2
Mar 29, 2019 11:33:50 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:50 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: 0.04468306562360563,0.05798625402756074,2
Mar 29, 2019 11:33:50 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:50 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: 0.0397384594110212,0.05536481450500877,2
Mar 29, 2019 11:33:50 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:50 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: 0.03903006424691792,0.0450831044025543,2
Mar 29, 2019 11:33:50 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:50 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: 0.032310379759422296,0.04016901477676941,2
Mar 29, 2019 11:33:50 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:50 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: 0.031379040430443095,0.03435576730426263,2
Mar 29, 2019 11:33:50 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:50 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: 0.030839069440687938,0.032221194133128586,2
Mar 29, 2019 11:33:50 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:50 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: 0.02661782842507235,0.030405400249000156,2
Mar 29, 2019 11:33:50 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:50 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: 0.02261553393297875,0.024705879962295722,2
Mar 29, 2019 11:33:50 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:50 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: 0.022330086170112437,0.02063584261328693,2
Mar 29, 2019 11:33:50 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:50 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: 0.019414410114022628,0.016852035887459593,2
Mar 29, 2019 11:33:50 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 29, 2019 11:33:50 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
2019-03-29 11:33:50 rCBA: rules 0
	 took: 0.92  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