'LazyData' is specified without a 'data' directory
Running examples in 'guf-Ex.R' failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: aggro
> ### Title: Aggregates a numerical column
> ### Aliases: aggro
> 
> ### ** Examples
> 
> my_DF = data.frame(var1=factor(c(rep('low', 4),rep('medium', 4),rep('high', 4)),
+ levels=c('low', 'medium', 'high')), var2=c(1, 2,2, 3,3,3, 4,4,4,4, 3, 2),
+ var3=rep(c('bbb','aaa','bbb'), 4), stringsAsFactors=FALSE)
> aggro(my_DF, c('var3', 'var1'), 'var2', sum)
Error in aggregate.formula(formula = as.formula(paste(num.column, "~",  : 
  argument 'x' is  missing -- it has been renamed from 'formula'
Calls: aggro -> FUN_DF -> aggregate -> aggregate.formula
Execution halted
'LazyData' is specified without a 'data' directory
Running examples in ‘guf-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: aggro
> ### Title: Aggregates a numerical column
> ### Aliases: aggro
> 
> ### ** Examples
> 
> my_DF = data.frame(var1=factor(c(rep('low', 4),rep('medium', 4),rep('high', 4)),
+ levels=c('low', 'medium', 'high')), var2=c(1, 2,2, 3,3,3, 4,4,4,4, 3, 2),
+ var3=rep(c('bbb','aaa','bbb'), 4), stringsAsFactors=FALSE)
> aggro(my_DF, c('var3', 'var1'), 'var2', sum)
Error in aggregate.formula(formula = as.formula(paste(num.column, "~",  : 
  argument 'x' is  missing -- it has been renamed from 'formula'
Calls: aggro -> FUN_DF -> aggregate -> aggregate.formula
Execution halted
'LazyData' is specified without a 'data' directory
Running examples in ‘guf-Ex.R’ failed
The error most likely occurred in:

> ### Name: aggro
> ### Title: Aggregates a numerical column
> ### Aliases: aggro
> 
> ### ** Examples
> 
> my_DF = data.frame(var1=factor(c(rep('low', 4),rep('medium', 4),rep('high', 4)),
+ levels=c('low', 'medium', 'high')), var2=c(1, 2,2, 3,3,3, 4,4,4,4, 3, 2),
+ var3=rep(c('bbb','aaa','bbb'), 4), stringsAsFactors=FALSE)
> aggro(my_DF, c('var3', 'var1'), 'var2', sum)
Error in aggregate.formula(formula = as.formula(paste(num.column, "~",  : 
  argument 'x' is  missing -- it has been renamed from 'formula'
Calls: aggro -> FUN_DF -> aggregate -> aggregate.formula
Execution halted
'LazyData' is specified without a 'data' directory
Running examples in ‘guf-Ex.R’ failed
The error most likely occurred in:

> ### Name: aggro
> ### Title: Aggregates a numerical column
> ### Aliases: aggro
> 
> ### ** Examples
> 
> my_DF = data.frame(var1=factor(c(rep('low', 4),rep('medium', 4),rep('high', 4)),
+ levels=c('low', 'medium', 'high')), var2=c(1, 2,2, 3,3,3, 4,4,4,4, 3, 2),
+ var3=rep(c('bbb','aaa','bbb'), 4), stringsAsFactors=FALSE)
> aggro(my_DF, c('var3', 'var1'), 'var2', sum)
Error in aggregate.formula(formula = as.formula(paste(num.column, "~",  : 
  argument 'x' is  missing -- it has been renamed from 'formula'
Calls: aggro -> FUN_DF -> aggregate -> aggregate.formula
Execution halted
'LazyData' is specified without a 'data' directory
Running examples in 'guf-Ex.R' failed
The error most likely occurred in:

> ### Name: aggro
> ### Title: Aggregates a numerical column
> ### Aliases: aggro
> 
> ### ** Examples
> 
> my_DF = data.frame(var1=factor(c(rep('low', 4),rep('medium', 4),rep('high', 4)),
+ levels=c('low', 'medium', 'high')), var2=c(1, 2,2, 3,3,3, 4,4,4,4, 3, 2),
+ var3=rep(c('bbb','aaa','bbb'), 4), stringsAsFactors=FALSE)
> aggro(my_DF, c('var3', 'var1'), 'var2', sum)
Error in aggregate.formula(formula = as.formula(paste(num.column, "~",  : 
  argument 'x' is  missing -- it has been renamed from 'formula'
Calls: aggro -> FUN_DF -> aggregate -> aggregate.formula
Execution halted
'LazyData' is specified without a 'data' directory
Running examples in 'guf-Ex.R' failed
The error most likely occurred in:

> ### Name: aggro
> ### Title: Aggregates a numerical column
> ### Aliases: aggro
> 
> ### ** Examples
> 
> my_DF = data.frame(var1=factor(c(rep('low', 4),rep('medium', 4),rep('high', 4)),
+ levels=c('low', 'medium', 'high')), var2=c(1, 2,2, 3,3,3, 4,4,4,4, 3, 2),
+ var3=rep(c('bbb','aaa','bbb'), 4), stringsAsFactors=FALSE)
> aggro(my_DF, c('var3', 'var1'), 'var2', sum)
Error in aggregate.formula(formula = as.formula(paste(num.column, "~",  : 
  argument 'x' is  missing -- it has been renamed from 'formula'
Calls: aggro -> FUN_DF -> aggregate -> aggregate.formula
Execution halted
'LazyData' is specified without a 'data' directory
'LazyData' is specified without a 'data' directory
'LazyData' is specified without a 'data' directory
'LazyData' is specified without a 'data' directory
'LazyData' is specified without a 'data' directory