Additional matrixStats functions

[PeteHaitch]

Figure out which should/need to have equivalents in DelayedMatrixStats, e.g., matrixStats::iqr()

[PeteHaitch]

Here's the complete list of other functions exported from matrixStats:

sort(grep("^(col|row)", 
          getNamespaceExports("matrixStats"), 
          value = TRUE, 
          invert = TRUE))
#>  [1] "allocArray"      "allocMatrix"     "allocVector"    
#>  [4] "allValue"        "anyMissing"      "anyValue"       
#>  [7] "binCounts"       "binMeans"        "count"          
#> [10] "diff2"           "indexByRow"      "iqr"            
#> [13] "iqrDiff"         "logSumExp"       "madDiff"        
#> [16] "mean2"           "meanOver"        "product"        
#> [19] "sdDiff"          "signTabulate"    "sum2"           
#> [22] "sumOver"         "t_tx_OP_y"       "validateIndices"
#> [25] "varDiff"         "weightedMad"     "weightedMean"   
#> [28] "weightedMedian"  "weightedSd"      "weightedVar"    
#> [31] "x_OP_y"

On further thinking, there are all vector-based functions and so none of these need to be ported to and exported from DelayedMatrixStats.

However, it would be good to have some of these as internal helpers, i.e. for use with the Rcpp::*Vector::iterator objects used by beachmat. These might be live in DelayedMatrixStats or, more generally, in the Rcpp::algorithms namespace or as part of the RcppHoney package (see email with Dan Dillon). Most relevant are:

• allValue()
• anyMissing()
• anyValue()
• binCounts()
• binMeans()
• count()
• diff2()
• iqr()
• iqrDiff()
• logSumExp()
• madDiff()
• mean2()
• meanOver() (Deprecated in favour of mean2())
• product()
• sdDiff()
• signTabulate()
• sum2()
• sumOver() (Deprecated in favour of sum2()`
• t_tx_OP_y()
• varDiff()
• weightedMad()
• weightedMean()
• weightedMedian()
• weightedSd()
• weightedVar()
• x_OP_y()