[问题类型]:
程式咨询(我想用R 做某件事情，但是我不知道要怎么用R 写出来)
[软件熟悉度]:
入门
[问题叙述]:
使用package"exact2x2"执行Exact McNemar's test时，因细格中有零，
按照文献建议各加0.5才执行计算，但是r会将0.5视为0，想请教前辈们如何
让其维持在0.5的状态下计算Odds ratio与95% confidence interval，谢谢。
[程式范例]:
# 使用套件
library(exact2x2)
# 输入计算数值
x=matrix(c(18.5,13.5,0.5,4.5),2,2)
#计算结果
mcnemar.exact(x)
#结果
Exact McNemar test (with central confidence intervals)
data: x
b = 0, c = 14, p-value = 0.0001221
alternative hypothesis: true odds ratio is not equal to 1
95 percent confidence interval:
0.0000000 0.3014661
sample estimates:
odds ratio
0
Warning message:
In exact2x2(x = x, alternative = "two.sided", tsmethod = "central", :
'x' has been rounded to integer: Mean relative difference: 0.05405405
[环境叙述]:
R version 3.5.3 (2019-03-11)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 17763)
Matrix products: default
locale:
[1] LC_COLLATE=Chinese (Traditional)_Taiwan.950
[2] LC_CTYPE=Chinese (Traditional)_Taiwan.950
[3] LC_MONETARY=Chinese (Traditional)_Taiwan.950
[4] LC_NUMERIC=C
[5] LC_TIME=Chinese (Traditional)_Taiwan.950
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] exact2x2_1.6.3 exactci_1.3-3 ssanv_1.1
loaded via a namespace (and not attached):
[1] compiler_3.5.3
[关键字]:
exact2x2, exact mcnemar test