Financial Toolbox

datefind

Indices of date numbers in matrix

Syntax

• Indices = datefind(Subset, Superset, Tolerance)
  

Arguments

Subset	Subset matrix of date numbers used to find matching date numbers in Superset. These date numbers must be a nonrepeating subset of those in Superset.
Superset	Superset matrix of nonrepeating date numbers whose elements are sought.
Tolerance	(Optional) Tolerance (+/-) for matching the date numbers in Superset. A positive integer. Default = 0.

Description

Indices = datefind(Subset, Superset, Tolerance) returns a vector of indices to the date numbers in Superset that are present in Subset, plus or minus the Tolerance. If no date numbers match, Indices = [].

Although this function was designed for use with sequential date numbers, you can use it with any nonrepeating integers.

Examples

• Superset = datenum(1999, 7, 1:31);
  
  Subset = [datenum(1999, 7, 10); datenum(1999, 7, 20)];
  
  Indices = datefind(Subset, Superset, 1)
  
  Indices =
  
            9
           10
           11
           19
           20
           21
  

See Also

datenum

datedisp

datemnth