The hardware and bandwidth for this mirror is donated by dogado GmbH, the Webhosting and Full Service-Cloud Provider. Check out our Wordpress Tutorial.
If you wish to report a bug, or if you are interested in having us mirror your free-software or open-source project, please feel free to contact us at mirror[@]dogado.de.
Generalized Entropy Calibration produces calibration weights based on generalized entropy as the objective function for optimization. In GECcal, design weights play a role in the constraints to ensure design consistency, rather than being part of the objective function.
Paper: Kwon, Y., Kim, J., & Qiu, Y. (2024). Debiased calibration estimation using generalized entropy in survey sampling. Submitted.
GECal is now available in CRAN. Use install.packages for installation.
install.packages("GECal")The latest version of GECal can instead be installed using the package devtools.
install.packages("devtools") # Install "devtools" if it is unavailable.
devtools::install_github("yonghyun-K/GECal", dependencies = T)library(GECal)
set.seed(11)
N = 10000
x = data.frame(x1 = rnorm(N, 2, 1), x2= runif(N, 0, 4))
pi = pt((-x[,1] / 2 - x[,2] / 2), 3);
pi = ifelse(pi >.7, .7, pi)
delta = rbinom(N, 1, pi)
Index_S = (delta == 1)
pi_S = pi[Index_S]; d_S = 1 / pi_S
x_S = x[Index_S,,drop = FALSE]
# pimat = diag(d_S^2 - d_S) / N^2 # 1 / pi_i * (1 - 1 / pi_i)
e = rnorm(N, 0, 1)
y = x[,1] + x[,2] + e;
y_S = y[Index_S] # plot(x_S, y_S)
# Hajek estimator for population mean
calibration0 <- GECal::GEcalib(~ 1, dweight = d_S, data = x_S,
const = 1, entropy = "SL", method = "DS")
GECal::estimate(y_S ~ 1, calibration = calibration0)$estimate
# sum(y_S * d_S) / sum(d_S)
# Hajek estimator for population total
calibration0 <- GECal::GEcalib(~ 1, dweight = d_S, data = x_S,
const = N, entropy = "SL", method = "DS")
GECal::estimate(y_S ~ 1, calibration = calibration0)$estimate
# sum(y_S * d_S) * N / sum(d_S)
# HT estimator for population total
calibration <- GECal::GEcalib(~ 0, dweight = d_S, data = x_S,
const = numeric(0), entropy = "SL", method = "DS")
GECal::estimate(y_S ~ 1, calibration = calibration)$estimate
# DS estimator using ET(exponential tilting) divergence
calibration1 <- GECal::GEcalib(~ ., dweight = d_S, data = x_S,
const = colSums(cbind(1, x)), entropy = "ET", method = "DS")
GECal::estimate(y_S ~ 1, calibration = calibration1)$estimate
# GEC0 estimator using ET entropy
calibration2 <- GECal::GEcalib(~ ., dweight = d_S, data = x_S,
const = colSums(cbind(1, x)),entropy = "ET", method = "GEC0")
GECal::estimate(y_S ~ 1, calibration = calibration2)$estimate
# GEC estimator using ET entropy
# when the population total for log(d_S) is known.
calibration3 <- GECal::GEcalib(~ . + g(d_S), dweight = d_S, data = x_S,
const = colSums(cbind(1, x, log(1 / pi))),
entropy = "ET", method = "GEC")
GECal::estimate(y_S ~ 1, calibration = calibration3)$estimate
# GEC estimator using ET entropy
# when the population total for log(d_S) is unknown.
calibration4 <- GECal::GEcalib(~ . + g(d_S), dweight = d_S, data = x_S,
const = colSums(cbind(1, x, NA)),
entropy = "ET", method = "GEC")
GECal::estimate(y_S ~ 1, calibration = calibration4)$estimate
# GEC estimator using ET entropy using different K_alpha
# when the population total for log(d_S) is unknown.
calibration5 <- GECal::GEcalib(~ . + g(d_S), dweight = d_S, data = x_S,
const = colSums(cbind(1, x, NA)),
entropy = "ET", method = "GEC", K_alpha = "log")
GECal::estimate(y_S ~ 1, calibration = calibration5)$estimate– CRAN Task View: Official Statistics & Survey Statistics: 4.1 Weighting and Calibration
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.