Computes left-right scores based on the Franzmann & Kaiser Method (see reference below). The issue structures are not calculated from scratch but taken as given from Franzmann 2009 (or later updates). Note that they are not available for the entire Manifesto Project Dataset, but only for a subset of countries and elections.
franzmann_kaiser(
data,
basevalues = TRUE,
smoothing = TRUE,
vars = grep("per\\d{3}$", names(data), value = TRUE),
issue_structure = read_fk_issue_structure(mean_presplit = mean_presplit),
party_system_split = split_belgium,
mean_presplit = TRUE,
...
)read_fk_issue_structure(
path = system.file("extdata", "fk_issue_structure_2019.csv", package = "manifestoR"),
mean_presplit = TRUE,
format_version = 2
)
fk_smoothing(data, score_name, use_period_length = TRUE, ...)
A data.frame with cases to be scaled, variables named "per..."
flag for transforming data to be relative to the minimum
flag for using smoothing
Variables/Categories to use for computation of score. Defaults to all available handbook version 4 categories.
issue structure to use for Franzmann & Kaiser method, default
to most recent bundled version (for details see read_fk_issue_structure)
function to recode the country variable to re-partition party systems. Defaults to splitting Belgium into two halfs as done in Franzmann 2009
if TRUE, for Belgium as a whole (before the split into two party systems) the mean of the issue weights is used (which is equal to taking the mean of the output values, since all subsequent transformations are linear). This step is required to replicate the Franzmann 2009 dataset. If the issue structures already contain values for Belgium as a whole they are overwritten by the newly generated ones.
passed on to fk_smoothing and party_system_split
path from were to read issue structures (as csv data file). Defaults to the most recent file bundled in the manifestoR package.
can be 1 or 2 to switch between different structural versions of the issue structures file (1 for files containing "structure"-columns, 2 for files containing "per"-columns)
name of variable with LR Score values to be smoothed
whether to use electoral period length in weighting
Franzmann, Simon/Kaiser, Andre (2006): Locating Political Parties in Policy Space. A Reanalysis of Party Manifesto Data, Party Politics, 12:2, 163-188
Franzmann, Simon (2009): The Change of Ideology: How the Left-Right Cleavage transforms into Issue Competition. An Analysis of Party Systems using Party Manifesto Data. PhD Thesis. Cologne.