has | R Documentation |
Check for Element
has(x, ...)
## S3 method for class 'Container'
has(x, elem, ...)
## S3 method for class 'dict.table'
has(x, column, ...)
x |
any |
... |
additional arguments to be passed to or from methods. |
elem |
some element to be found. |
column |
vector of values with the same length as the number of rows
of the |
TRUE
if element is in x
and otherwise FALSE
.
For dict.table
, TRUE
if column exists in x
otherwise FALSE
.
has_name()
co = container(1, 2, mean)
has(co, 1) # TRUE
has(co, mean) # TRUE
has(co, 1:2) # FALSE
dit = dict.table(a = 1:3, b = as.list(4:6))
has(dit, 1:3) # TRUE
has(dit, 4:6) # FALSE
has(dit, as.list(4:6)) # TRUE
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