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)
2019-04-16 11:44:19 rCBA: initialized
2019-04-16 11:44:19 rCBA: data 20x5
	 took: 0.01  s
Evaluate: 0.8653325768178738,0.6744316966359433,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 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: 0.7606737033534883,0.6190620760585797,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 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: 0.6404815692274187,0.6126079818249365,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 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: 0.5953764752232036,0.5822347345458095,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 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: 0.5448092141421935,0.4663241744659666,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 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: 0.5092434491115448,0.44842770235215157,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 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: 0.5056645875618693,0.43109812281147125,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 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: 0.46966575934018123,0.37833255070097616,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 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: 0.4284983412790459,0.34022976994646065,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 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: 0.34463669919716955,0.318597000929779,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 AM 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: 0.2987070741503032,0.27326784043759506,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 AM 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: 0.26853699592947317,0.26582708085685713,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (3)
Frequent patterns: 3
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.25890657799762345,0.22076507138837898,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (3)
Frequent patterns: 3
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.24300430310983734,0.20727527403548193,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (3)
Frequent patterns: 3
Rules: 3
Cached
Final rules: 1
Accuracy: NaN
Best rules size: 0
Evaluate: 0.21097334406201027,0.19569663364229584,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 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: 0.19994760983394497,0.1914915033261243,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 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: 0.19952735867801727,0.17276304708947332,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 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: 0.1845026197360764,0.14520419630339249,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 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: 0.18128682670292465,0.12248210801923692,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 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: 0.17859240921799213,0.10652407019981609,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 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: 0.1644340072705706,0.10476197895697419,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (7)
Frequent patterns: 9
Rules: 5
Cached
Final rules: 3
Accuracy: NaN
Best rules size: 0
Evaluate: 0.15211183745520515,0.08853750853900669,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (7)
Frequent patterns: 9
Rules: 5
Cached
Final rules: 3
Accuracy: NaN
Best rules size: 0
Evaluate: 0.13322120406019838,0.08005344478524931,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (7)
Frequent patterns: 9
Rules: 5
Cached
Final rules: 3
Accuracy: NaN
Best rules size: 0
Evaluate: 0.12342555273122607,0.07589217185379375,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (7)
Frequent patterns: 9
Rules: 5
Cached
Final rules: 3
Accuracy: NaN
Best rules size: 0
Evaluate: 0.11806055579606352,0.07130250782067575,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (7)
Frequent patterns: 9
Rules: 5
Cached
Final rules: 3
Accuracy: NaN
Best rules size: 0
Evaluate: 0.09861739043451055,0.06693133658462055,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 32
Rules: 13
Cached
Final rules: 6
Accuracy: NaN
Best rules size: 0
Evaluate: 0.08636622156964142,0.06428350387210023,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 32
Rules: 13
Cached
Final rules: 6
Accuracy: NaN
Best rules size: 0
Evaluate: 0.0758478884295999,0.06399734515480839,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 32
Rules: 13
Cached
Final rules: 6
Accuracy: NaN
Best rules size: 0
Evaluate: 0.06521452688003467,0.051724129715098224,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (18)
Frequent patterns: 32
Rules: 13
Cached
Final rules: 6
Accuracy: NaN
Best rules size: 0
Evaluate: 0.055597859442311916,0.04280828624557213,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 203
Rules: 58
Cached
Final rules: 10
Accuracy: NaN
Best rules size: 0
Evaluate: 0.05494145585383205,0.03621688609724462,2
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: start
Apr 16, 2019 11:44:19 AM cz.jkuchar.rcba.fpg.FPGrowth run
INFO: FPG: tree built (50)
Frequent patterns: 203
Rules: 58
Cached
Final rules: 10
Accuracy: NaN
Best rules size: 0
2019-04-16 11:44:19 rCBA: rules 0
	 took: 0.76  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