map.soa.sbm: SOA mapping using SBM

Description Usage Arguments Author(s) See Also Examples

View source: R/map.soa.sbm.R

Description

Employs dm.sbm over time to generate a state-of-the-art map.

Usage

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map.soa.sbm(xdata, ydata, date, 
            rts="crs", orientation="n", sg="ssm", cv="convex", mk="dmu")

Arguments

xdata

Input(s) vector (n by m)

ydata

Output(s) vector (n by s)

date

Production date (n by 1)

rts

Returns to scale assumption
"crs" Constant RTS (default)
"vrs" Variable RTS
"irs" Increasing RTS
"drs" Decreasing RTS

orientation

Orientation of the measurement
"n" Non-orientation (default)
"i" Input-orientation
"o" Output-orientation

sg

Employs second-stage optimization
"ssm" Slack-sum maximization (default)
"max" Date-sum maximization (only if date is defined)
"min" Date-sum minimization (only if date is defined)

cv

Convexity assumption
"convex" Convexity holds (default)
"fdh" Free disposal hull (this will override rts)

mk

Marker on the map
"dmu" DMU index (default)
"eff" Efficiency score

Author(s)

Dong-Joon Lim, PhD

See Also

map.soa.ddf SOA mapping using DDF
map.soa.dea SOA mapping using DEA
map.soa.hdf SOA mapping using HDF
map.soa.sbm SOA mapping using SBM
map.soa.sf SOA mapping using SF

Examples

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# Load engine dataset
  df <- dataset.engine.2015

# Subset for forced induction systems
  fis <- subset(df, grepl("^.C..", df[, 8]))

# Parameters
  x <- subset(fis, select = 4)
  y <- subset(fis, select = 6 : 7)
  d <- subset(fis, select = 2)

# Generate an SOA map
  map.soa.sbm(x, y, d)

Example output

Loading required package: car
Loading required package: carData
Loading required package: lpSolveAPI
    2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
18    18   18   18   NA   NA   NA   NA   NA   NA   NA   NA
30    NA   30   30   NA   NA   NA   NA   NA   NA   NA   NA
38    NA   NA   NA   38   38   38   38   38   NA   NA   NA
47    NA   NA   NA   NA   47   47   47   NA   NA   NA   NA
73    NA   NA   NA   NA   NA   NA   73   NA   NA   NA   NA
84    NA   NA   NA   NA   NA   NA   NA   84   84   NA   NA
85    NA   NA   NA   NA   NA   NA   NA   85   85   NA   NA
319   NA   NA   NA   NA   NA   NA   NA  319  319   NA   NA
107   NA   NA   NA   NA   NA   NA   NA   NA  107   NA   NA
144   NA   NA   NA   NA   NA   NA   NA   NA   NA  144   NA
145   NA   NA   NA   NA   NA   NA   NA   NA   NA  145  145
269   NA   NA   NA   NA   NA   NA   NA   NA   NA   NA  269

DJL documentation built on Dec. 9, 2018, 5:04 p.m.