[問題] 如何使matrix中的數值小數位不要進位

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[問題類型]: 程式諮詢(我想用R 做某件事情，但是我不知道要怎麼用R 寫出來) [軟體熟悉度]: 入門 [問題敘述]: 使用package"exact2x2"執行Exact McNemar's test時，因細格中有零，按照文獻建議各加0.5才執行計算，但是r會將0.5視為0，想請教前輩們如何讓其維持在0.5的狀態下計算Odds ratio與95% confidence interval，謝謝。 [程式範例]: # 使用套件 library(exact2x2) # 輸入計算數值 x=matrix(c(18.5,13.5,0.5,4.5),2,2) #計算結果 mcnemar.exact(x) #結果 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 [環境敘述]: 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 [關鍵字]: exact2x2, exact mcnemar test -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 140.116.67.123 (臺灣) ※ 文章網址: https://www.ptt.cc/bbs/R_Language/M.1561618274.A.9BC.html