Section 13.7 Quick Reference to ISCAM R Workspace Functions and Other R Commands
| Procedure Desired | Function Name (Options) |
|---|---|
| Set up two-way table | matrixname = matrix(c(A, C, B, D), nrow = 2, dimnames = list(c("row name", "row name"), c("column name", "column name"))) |
| Segmented bar graph | Set up two-way table and then use barplot; barplot(prop.table(matrixname, margin=2), legend = T, ylab = "Proportion") |
| Generate data from Binomial | rbinom(number, sample size, probability) |
| Create a column of 3 graphs | par(mfrow=c(3,1)) |
| Two proportion z-test/interval | iscamtwopropztest(x1, n1, x2, n2, hypothesized, alternative, conf.level) *x1 can be count or proportion |
| Hypergeometric probability | iscamhyperprob(k, total, succ, n, lower.tail = FALSE) |
| Normal approximation to hypergeometric | iscamhypernorm(x, N, M, n, TRUE/FALSE) |
| Generate data from hypergeometric | rhyper(number, sample size, probability) |
| Create Boolean for values below x | sum(data <= x)/n |
| Fisher’s Exact Test, CI for odds ratio | fisher.test(matrix, alternative) |
| Relative risk | fmsb::riskratio(A, B, A+C, B+D, conf.level, p.calc.by.independence = TRUE) |
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