[R] two kind of Hosmer and Lemeshow’s test
I know that there are two method to apply the Hosmer and Lemeshow’s. One of
them is calculated based on the fixed and pre-determined cut-off points of
the estimated probability of success. One of them is calculated based on
the percentiles of estimated probabilities.
In the previous post,i find that the Hosmer and Lemeshow’s test how to use
in R.
hosmerlem -
function (y, yhat, g = 10)
{
cutyhat - cut(x, breaks = quantile(yhat, probs = seq(0,
1, 1/g)), include.lowest = T)
obs - xtabs(cbind(1 - y, y) ~ cutyhat)
expect - xtabs(cbind(1 - yhat, yhat) ~ cutyhat)
chisq - sum((obs - expect)^2/expect)
P - 1 - pchisq(chisq, g - 2)
c(X^2 = chisq, Df = g - 2, P(Chi) = P)
}
I want to know how can i use the another method which is not use the
probability of success. i want to know how can i revise above program to
achieve an objective.
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[R] how to plot chi-square distribution in the graph
if i want to plot the chi-square distribution with a different degree of freedom how can i plot it in the graph?Sometimes i plot the histogram and cut it in a lot of piece.It's distribution like a chi-square.So i want to plot the chi-square with a different degree of freedom to compare it . -- View this message in context: http://www.nabble.com/how-to-plot-chi-square-distribution-in-the-graph-tp20160946p20160946.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
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[R] HOW to use the Hosmer–Lemeshow test in R
i want to know how to use the Hosmer–Lemeshow test in R. Can anyone show me the program to me and tell me how to use it? -- View this message in context: http://www.nabble.com/HOW-to-use-the-Hosmer%E2%80%93Lemeshow-test%E2%80%8F-in-R-tp19675283p19675283.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
