Similar to intersect, 'vintersect' identifies values that occure in each vector. The similar code would be to identify intersecting values between two vectors and then look for the intersect with a third vector and so on. Rather, all vectors are input at the same time and intersecting values are returned. The 'limit' parameter can define the minimum number of observations of a value before it is returned. An example would be if you wanted all values that occur in 2 out of 3 vectors (as in the example presented below), for this the 'limit' would be set to 2 and you would supply all three vectors. The returned values will be all values present in at least 2 of the vectors. By default, the limit is set to the number of input vectors to return only values intersecting in all vectors.
a series of vectors to compare against eachother, either independently input or in a list.
integer The number of minimum observations of a single value before it is included in the output. Defaults to the number of input vectors, but can be reduce to increase the number of returned values.
vintersect returns a single vector from input vectors containing
intersecting values from the input vectors. 'limit' can be used to specify an
observational limit to include values in the output.
Christopher Nobles, Ph.D.
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