get_probabilities | R Documentation |
Given a table with simulations in the rows and coalitions in the columns, this function returns the coalition probabilities for a specified coalition, by default excluding superior coalitions first
get_probabilities( x, coalitions = list(c("cdu"), c("cdu", "fdp"), c("cdu", "fdp", "greens"), c("spd"), c("spd", "left"), c("spd", "left", "greens")), nsim = 1e+05, distrib.fun = sls, seats_majority = 300L, seed = as.numeric(now()), correction = NULL )
x |
A table containing one row per survey and survey information in
long format in a separate column named |
coalitions |
A list of coalitions for which coalition probabilities should
be calculated. Each list entry must be a vector of party names. Those names
need to correspond to the names in |
nsim |
number of simulations |
distrib.fun |
Function to calculate seat distribution. Defaults to
|
seats_majority |
The number of seats needed to obtain majority. |
seed |
sets seed |
correction |
A positive number. If not |
calculate_prob
library(coalitions) library(dplyr) # get the latest survey for a sample of German federal election polls surveys <- get_latest(surveys_sample) # calculate probabilities for two coalitions probs <- get_probabilities(surveys, coalitions = list(c("cdu", "fdp"), c("spd", "left", "greens")), nsim = 100) # ensure fast runtime with only 100 simulations probs %>% tidyr::unnest("probabilities")
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