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)
2019-03-31 23:31:40 rCBA: initialized
2019-03-31 23:31:40 rCBA: data 20x5
	 took: 0  s
Evaluate: 0.1730742634709591,0.8738261918625605,4
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (5)
Frequent patterns: 6
Rules: 1
Cached
Final rules: 2
Accuracy: NaN
Best rules size: 0
Evaluate: 0.16266923659402788,0.8500574542057071,4
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (5)
Frequent patterns: 6
Rules: 1
Cached
Final rules: 2
Accuracy: NaN
Best rules size: 0
Evaluate: 0.13350468620455064,0.762016638174271,4
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (5)
Frequent patterns: 6
Rules: 1
Cached
Final rules: 2
Accuracy: NaN
Best rules size: 0
Evaluate: 0.12493189389532357,0.6457258143760763,4
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (5)
Frequent patterns: 6
Rules: 1
Cached
Final rules: 2
Accuracy: NaN
Best rules size: 0
Evaluate: 0.1155832301428062,0.5979634493878037,4
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (19)
Frequent patterns: 38
Rules: 13
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.10673331435830555,0.5936820256204195,4
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (19)
Frequent patterns: 38
Rules: 13
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.09157784024972034,0.4869434563562953,4
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (19)
Frequent patterns: 38
Rules: 13
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.08192680349150236,0.44167078042306646,4
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (19)
Frequent patterns: 38
Rules: 13
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.07325462910183599,0.362353898721802,4
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (19)
Frequent patterns: 38
Rules: 15
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.07022114076290975,0.3489283464908742,4
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (19)
Frequent patterns: 38
Rules: 17
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.06337592707745963,0.2892167082378161,4
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (19)
Frequent patterns: 38
Rules: 18
Cached
Final rules: 7
Accuracy: NaN
Best rules size: 0
Evaluate: 0.058286617299722926,0.25542391481535637,4
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 223
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.05552964797656461,0.22329450279270274,4
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 223
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.050091419397788196,0.2131742282693888,4
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 223
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.04596669552688661,0.20104631719100893,4
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 223
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.03860149136934339,0.20070238084269748,4
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 223
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.03261387796625756,0.1629940644313029,4
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 224
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.03254133783354014,0.13828828884403777,4
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:40 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 224
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.02988870949467489,0.1223248703478188,4
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 224
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.026673040519914513,0.11603383666085063,4
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 224
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.02243426767372364,0.09445026137119998,4
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 224
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.018836782216497087,0.07763273385012129,4
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 224
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.015584526688985186,0.06821951099902218,4
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 224
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.013640017015615817,0.057191616249123986,4
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 224
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.012543088647107025,0.049272959917609244,4
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 224
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.012078266592408253,0.04264598599414908,4
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 224
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.009799265824827968,0.04193113805794644,4
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 224
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.008185818254594775,0.03634467597394148,4
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 224
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.008153328969491907,0.030602928933514392,4
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 224
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.007306935947790458,0.027145899359862415,4
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 224
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
Evaluate: 0.00618192676808321,0.024892638325368456,4
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Mar 31, 2019 11:31:41 PM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 454
Rules: 224
Cached
Final rules: 9
Accuracy: NaN
Best rules size: 0
2019-03-31 23:31:41 rCBA: rules 0
	 took: 1.27  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