For SURPH 2.1, the capture histories had to be specified one animal per line in the input data file after the "captureHistories" keyword as described in Section 4.7.10 of the SURPH 2.1 User Manual.
In SURPH 2.2, under certain conditions (see below), a capture history may be followed by a colon (":") surrounded by white space, followed by a count specifying the number of animals with that capture history. For example:
1 0 0 0 : 35
1 0 1 1 : 100
0 1 1 1
1 0 1 1 : 10
specifies 35 animals with capture history "1 0 0 0" and 100 animals with capture history "1 0 1 1". The third line has no colon or count, so it uses the default count of one for capture history "1 0 1 1". Line four specifies 10 more animals with capture history "1 0 1 1" for a total of 110.
This format may only be use under the following conditions:
In addition, the counts for a given capture history can not cross form one population to another.
Note that he use of a default count of one (line three above), and the ability to add on to a previous count (line four) make all input data files from SURPH 2.1 fully compatible with SURPH 2.2.