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)
2019-04-12 11:39:29 rCBA: initialized
2019-04-12 11:39:29 rCBA: data 20x5
	 took: 0  s
Evaluate: 0.452964156793944,0.5617849668622581,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 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: 0.4069102937401189,0.46914125306480264,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 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: 0.3918738080275476,0.4656672294481792,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 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: 0.34274828071657193,0.42254337856495305,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (2)
Frequent patterns: 2
Rules: 0
Cached
Final rules: 0
Accuracy: NaN
Best rules size: 0
Evaluate: 0.293386644441208,0.3489394351813605,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (4)
Frequent patterns: 4
Rules: 2
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.2483456858900427,0.3238285018099403,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (4)
Frequent patterns: 4
Rules: 2
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.24406669176092988,0.2992880360587699,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (4)
Frequent patterns: 4
Rules: 2
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.20582864436506065,0.26194788662483104,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 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: 0.18516031303237135,0.21028794434366022,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 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: 0.15824195130310115,0.16995005345740946,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 6
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.13687563636627362,0.13844926548438255,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 6
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.12079067887740497,0.12955995215560365,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (6)
Frequent patterns: 6
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.11332621459232686,0.11617825082552692,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 17
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.10781668850029497,0.11360637348261945,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 17
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.09499091853525954,0.11239788130538628,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 17
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0911413839899641,0.104558871325597,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 17
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.08522925019704328,0.09920410592445117,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 17
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.07681463751215159,0.09349813543130844,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 17
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.06585055610082234,0.08017785025476994,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (17)
Frequent patterns: 17
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.05380955249467475,0.06760522335376826,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.05308835165610465,0.05792856540828717,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.044194377453537756,0.05260577164267557,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.04378197806733395,0.051239779428271154,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.03667170062193048,0.04893108870028331,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.03268116095213512,0.04395060545296421,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.030385158085003822,0.042672677783070975,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.024485577183798322,0.03715703373413427,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.021758562292258324,0.030896655312450855,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.02086997085571705,0.030850109383167516,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.018576676167230972,0.02629141643261408,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.016961196887139735,0.02559696865857572,1
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 12, 2019 11:39:29 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (52)
Frequent patterns: 52
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
2019-04-12 11:39:29 rCBA: rules 0
	 took: 0.73  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