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Arithmetic operators for FLCore classes

Source: R/FLArray.R, R/FLPar.R
Arith-methods.Rd

Overloaded arithmetic operators for FLCore classes

Usage

# S4 method for class 'numeric,FLArray'
Arith(e1, e2)

# S4 method for class 'FLArray,numeric'
Arith(e1, e2)

# S4 method for class 'FLArray,FLArray'
Arith(e1, e2)

# S4 method for class 'FLPar,FLPar'
Arith(e1, e2)

# S4 method for class 'FLArray,FLPar'
Arith(e1, e2)

# S4 method for class 'FLPar,FLArray'
Arith(e1, e2)

Details

These methods apply the standard arithmetic operators included in the Arith group ("+", "-", "*", "^", "%%", "%/%", and "/"), so that they return an object of the appropriate class.

When the operation involves objects of two classes (e.g. FLPar and FLQuant), the class is the returned object is that of the more complexs object, in this case FLQuant.

See also

methods::Arith base::Arithmetic

Author

The FLR Team

Examples


flq <- FLQuant(rlnorm(90), dim=c(3,10), units='kg')
flp <- FLPar(a=99)

# FLQuant and numeric
flq * 25
#> An x of class "FLQuant"
#> , , unit = unique, season = all, area = unique
#> 
#>      year
#> quant 1      2      3      4      5      6      7      8      9      10    
#>     1   6.16  24.86   4.04  18.84 197.14   3.88  43.03  35.94 165.24  24.60
#>     2  32.27  46.55  19.52  14.37   4.89  14.83  10.02   6.78  22.68  10.94
#>     3   2.18  78.83  19.58  46.89  41.73  23.72  39.93  52.28   9.81   5.51
#> 
#> units:  kg 
# Two FLQuant objects
flq + flq
#> An x of class "FLQuant"
#> , , unit = unique, season = all, area = unique
#> 
#>      year
#> quant 1      2      3      4      5      6      7      8      9      10    
#>     1  0.493  1.989  0.323  1.507 15.771  0.310  3.442  2.875 13.219  1.968
#>     2  2.582  3.724  1.562  1.150  0.391  1.187  0.802  0.543  1.814  0.875
#>     3  0.175  6.306  1.567  3.751  3.339  1.898  3.194  4.183  0.785  0.441
#> 
#> units:  kg 

# FLQuant and FLPar
flq / flp
#> An x of class "FLQuant"
#> , , unit = unique, season = all, area = unique
#> 
#>      year
#> quant 1        2        3        4        5        6        7        8       
#>     1 0.002491 0.010045 0.001634 0.007614 0.079651 0.001568 0.017385 0.014521
#>     2 0.013039 0.018806 0.007888 0.005806 0.001977 0.005993 0.004049 0.002740
#>     3 0.000883 0.031850 0.007912 0.018946 0.016862 0.009583 0.016132 0.021124
#>      year
#> quant 9        10      
#>     1 0.066762 0.009941
#>     2 0.009163 0.004419
#>     3 0.003962 0.002226
#> 
#> units:  NA