S3 Class "summaryStats"

Objects of S3 class "summaryStats" are returned by the functions summaryStats and summaryFull.

Details

Objects of S3 class "summaryStats" are matrices that contain information about the summary statistics.

Methods

Generic functions that have methods for objects of class "summaryStats" include:
print.

Value

Required Attributes
The following attributes must be included in a legitimate matrix of class "summaryStats".

stats.in.rows

logical scalar indicating whether the statistics are stored by row
(stats.in.rows=TRUE) or by column (stats.in.rows=FALSE).

drop0trailing

logical scalar indicating whether to drop trailing 0's when printing the summary statistics.

Author

Steven P. Millard (EnvStats@ProbStatInfo.com)

Examples

  # Create an object of class "summaryStats", then print it out. 
  #-------------------------------------------------------------

  summaryStats.obj <- summaryStats(TCE.mg.per.L ~ Well, 
    data = EPA.09.Table.9.1.TCE.df, digits = 3) 

  is.matrix(summaryStats.obj) 
#> [1] TRUE
  #[1] TRUE

  class(summaryStats.obj) 
#> [1] "summaryStats"
  #[1] "summaryStats" 

  attributes(summaryStats.obj) 
#> $dim
#> [1] 2 8
#> 
#> $dimnames
#> $dimnames[[1]]
#> [1] "Well.1" "Well.2"
#> 
#> $dimnames[[2]]
#> [1] "N"       "Mean"    "SD"      "Median"  "Min"     "Max"     "NA's"   
#> [8] "N.Total"
#> 
#> 
#> $class
#> [1] "summaryStats"
#> 
#> $stats.in.rows
#> [1] FALSE
#> 
#> $drop0trailing
#> [1] TRUE
#> 
  #$dim
  #[1] 2 8
  #
  #$dimnames
  #$dimnames[[1]]
  #[1] "Well.1" "Well.2"
  #
  #$dimnames[[2]]
  #[1] "N"       "Mean"    "SD"      "Median"  "Min"     "Max"    
  #[7] "NA's"    "N.Total"
  #
  #
  #$class
  #[1] "summaryStats"
  #
  #$stats.in.rows
  #[1] FALSE
  #
  #$drop0trailing
  #[1] TRUE

  summaryStats.obj 
#>         N  Mean    SD Median   Min  Max NA's N.Total
#> Well.1 14 0.063 0.079  0.031 0.004 0.25    1      15
#> Well.2 13 0.118 0.020  0.110 0.099 0.17    2      15
#> attr(,"class")
#> [1] "summaryStats"
#> attr(,"stats.in.rows")
#> [1] FALSE
#> attr(,"drop0trailing")
#> [1] TRUE
  #        N  Mean    SD Median   Min  Max NA's N.Total
  #Well.1 14 0.063 0.079  0.031 0.004 0.25    1      15
  #Well.2 13 0.118 0.020  0.110 0.099 0.17    2      15

  #----------

  # Clean up
  #---------
  rm(summaryStats.obj)