NCA: Necessary Condition Analysis

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Performs a Necessary Condition Analysis (NCA). (Dul, J. 2016. Necessary Condition Analysis (NCA). ''Logic and Methodology of 'Necessary but not Sufficient' causality." Organizational Research Methods 19(1), 10-52) NCA identifies necessary (but not sufficient) conditions in datasets. Instead of drawing a regression line ''through the middle of the data'' in an xy-plot, NCA draws the ceiling line. The ceiling line y = f(x) separates the area with observations from the area without observations. (Nearly) all observations are below the ceiling line: y <= f(x). The empty zone is in the upper left hand corner of the xy-plot (with the convention that the x-axis is ''horizontal'' and the y-axis is ''vertical'' and that values increase ''upwards'' and ''to the right''). The ceiling line is a (piecewise) linear non-decreasing line: a linear step function or a straight line. It indicates which level of x (e.g. an effort or input) is necessary but not sufficient for a (desired) level of y (e.g. good performance or output).

Author
Jan Dul <jdul@rsm.nl>
Date of publication
2016-05-18 17:29:47
Maintainer
Govert Buijs <buijs@rsm.nl>
License
GPL (>= 3)
Version
2.0

View on CRAN

Man pages

ceilings
a set of all available ceiling techniques
line.colors
a set defining the line colors for the plots
line.types
a set defining the line types for the plots
line.width
parameter defining the width of the lines in the plots
nca
Run a basic NCA analyses on a data set
nca_analysis
Run NCA analyses on a data set
nca.example
NCA example data with 2 independent and 1 dependent variables
nca_output
display the result of the NCA analysis
NCA-package
Necessary Condition Analysis
point.type
parameter defining the plotting symbol in the plots

Files in this package

NCA
NCA/tests
NCA/tests/testthat.R
NCA/tests/testthat
NCA/tests/testthat/test.p_ceiling.R
NCA/NAMESPACE
NCA/data
NCA/data/nca.example.RData
NCA/R
NCA/R/p_nca_lh.R
NCA/R/nca_output.R
NCA/R/p_scope.R
NCA/R/p_ineffs.R
NCA/R/p_above.R
NCA/R/p_graphics.R
NCA/R/onAttach.R
NCA/R/p_nca_cr_fdh.R
NCA/R/p_bottleneck_table.R
NCA/R/p_bottleneck.R
NCA/R/p_nca_ols.R
NCA/R/p_nca_sfa.R
NCA/R/p_nca_ce_vrs.R
NCA/R/p_nca_ce_fdh.R
NCA/R/nca_bottleneck.R
NCA/R/p_constants.R
NCA/R/p_utils.R
NCA/R/p_nca_cols.R
NCA/R/p_loop_data.R
NCA/R/nca.R
NCA/R/nca_summary.R
NCA/R/nca_plots.R
NCA/R/p_ceiling.R
NCA/R/p_nca_qr.R
NCA/R/p_peers.R
NCA/R/p_validate.R
NCA/R/p_nca_cr_vrs.R
NCA/MD5
NCA/DESCRIPTION
NCA/man
NCA/man/line.width.Rd
NCA/man/NCA-package.Rd
NCA/man/nca_analysis.Rd
NCA/man/nca.example.Rd
NCA/man/line.types.Rd
NCA/man/nca_output.Rd
NCA/man/ceilings.Rd
NCA/man/line.colors.Rd
NCA/man/nca.Rd
NCA/man/point.type.Rd