The standard GeoEas input file format is comprised of header records and data records :
• Data records are comma-delimited XYZ type data. This means that each data record contains at least 3 fields: an x-coordinate location, a y-coordinate location, and the value for at least one z variate measured at that x-y location (single-dimension transects will have only x-coordinate and z variate data values). Additional fields can hold a sample ID value and multiple z-variates for a particular x-y location.
• Header records precede the data records and contain specific information about the data records.
Record 1 contains text of the user's choice, usually a data set title or file name.
Record 2 contains the number of fields (values) in each data record.
Record 3 contains the name of the first field.
Records 4+ contain the names of the second, third, etc. fields (one name per record)
• There are no missing value indicators in the standard GeoEas format.
Any of these parameters (field delimiters, number of header records, missing value indicators, etc.) can be changed to a custom format from the Import Text File window.
The following listing is the first 11 records of a standard GeoEas input file that has fields for sample ID, x-coordinate, y-coordinate, and one z variate. Note the four variate names in records 3-6:
File for field 55
4
ID
X meters
y meters
Z (mm)
13,-14036,-3097,11
14,-13621,-1266,25
22,-12384,-911,79
23,-121276,978,91
24,-12674,190,14