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Package 'zoo' - CRAN

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24 na.locf<br />

Arguments<br />

Value<br />

object an object.<br />

na.rm logical. Should leading NAs be removed?<br />

fromLast logical. Causes observations to be carried backward rather than forward. Default<br />

is FALSE. With a value of TRUE this corresponds to NOCB (next observation<br />

carried backward). It is not supported if x or xout is specified.<br />

rev Use fromLast instead. This argument will be eliminated in the future in favor<br />

of fromLast.<br />

maxgap Runs of more than maxgap NAs are retained, other NAs are removed and the last<br />

occurrence in the resulting series prior to each time point in xout is used as that<br />

time point’s output value. (If xout is not specified this reduces to retaining runs<br />

of more than maxgap NAs while filling other NAs with the last occurrence of a<br />

non-NA.)<br />

rule See approx.<br />

... further arguments passed to methods.<br />

An object in which each NA in the input object is replaced by the most recent non-NA prior to it.<br />

If there are no earlier non-NAs then the NA is omitted (if na.rm = TRUE) or it is not replaced (if<br />

na.rm = FALSE).<br />

The arguments x and xout can be used in which case they have the same meaning as in approx.<br />

Note that if a multi-column zoo object has a column entirely composed of NA then with na.rm = TRUE,<br />

the default, the above implies that the resulting object will have zero rows. Use na.rm = FALSE to<br />

preserve the NA values instead.<br />

See Also<br />

zoo<br />

Examples<br />

az

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