r - NA values not being excluded in `cor` -

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to simplify, have data set follows:

b <- 1:6 # > b # [1] 1 2 3 4 5 6 jnk <- c(2, 4, 5, na, 7, 9) # > jnk # [1]  2  4  5 na  7  9

when try:

cor(b, jnk, na.rm=true)

i get:

> cor(b, jnk, na.rm=t)   error in cor(b, jnk, na.rm = t) : unused argument (na.rm = t)

i've tried na.action = na.exclude, etc. none seem work. it'd helpful know issue , how can fix it. thanks.

read ?cor:

cor(x, y = null, use = "everything",      method = c("pearson", "kendall", "spearman"))

it doesn't have na.rm, has use.

an optional character string giving method computing covariances in presence of missing values. must (an abbreviation of) 1 of strings "everything", "all.obs", "complete.obs", "na.or.complete", or "pairwise.complete.obs".

pick one. details of each in details section of ?cor.


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