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Comparative Archaeology Database, University of Pittsburgh
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Masaya Regional Settlement Dataset |
The data files CERAMICS.TXT and CERAMICS.XLS provide a breakdown of ceramic sherds by period and associated sherd densities for each surface collection carried out within the Masaya survey. CERAMICS.TXT is an ASCII text file; CERAMICS.XLS contains the same data in the form of an Excel spreadsheet. Each line represents one collection lot. There are 1079 lines in the text file, each with 20 variables separated by commas. The variables are, in the following order:
1 |
Municipal Sequence Code: This is the numerical sequence assigned to each collection lot. The municipal correspondence code is the letter T for Tisma, C for Ticuantepe and A for Masatepe. |
2 |
UTM Easting coordinate of the surface collection. |
3 |
UTM Northing coordinate of the surface collection. |
4 |
Elevation of the surface collection (meters above sea level). |
5 |
Number of non-diagnostic sherds. |
6 |
Number of diagnostic sherds. |
7 |
Total number of sherds within the collection. |
8 |
Number of diagnostic sherds identified as Ometepe or Sapoa. |
9 |
Maximal estimate of Ometepe sherds from variable 8. (Several sherds could be interpreted as either Ometepe or Sapoa, for that reason variables 9 and 10 do not add up to variable 8.) |
10 |
Maximal estimate of Sapoa sherds from varaible 8. (Several sherds could be interpreted as either Ometepe or Sapoa, for that reason variables 9 and 10 do not add up to variable 8.) |
11 |
Number of diagnostic sherds identified as Bagaces. |
12 |
Number of diagnostic sherds identified as Tempisque/Orosi. |
13 |
Projected number of sherds belonging to the Ometepe Period. To arrive at this number, the proportions of Ometepe sherds (variable 9) within the total number of diagnostic sherds (variable 6) was projected on to the total number of sherds within the collection (variable 7). (See pages 61-62 of the dissertation associated with this dataset.) |
14 |
Projected number of sherds belonging to the Sapoa Period. To arrive at this number, the proportions of Sapoa sherds (variable 10) within the total number of diagnostic sherds (variable 6) was projected on to the total number of sherds within the collection (variable 7). (See pages 61-62 of the dissertation associated with this dataset.) |
15 |
Projected number of sherds belonging to the Bagaces Period. To arrive at this number, the proportions of Bagaces sherds (variable 11) within the total number of diagnostic sherds (variable 6) was projected on to the total number of sherds within the collection (variable 7). (See pages 61-62 of the dissertation associated with this dataset.) |
16 |
Projected number of sherds belonging to the Tempisque/Orosi Period. To arrive at this number, the proportions of Tempisque/Orosi sherds (variable 12) within the total number of diagnostic sherds (variable 6) was projected on to the total number of sherds within the collection (variable 7). (See pages 61-62 of the dissertation associated with this dataset.) |
17 |
Ometepe Period sherd density per square meters (based on maximal Ometepe estimate). Variable 13 divided by 12.57 m² (the area of a collection circle with a radius of 2 m). (See page 56 of the dissertation associated with this dataset.) |
18 |
Sapoa Period sherd density per square meters (based on maximal Sapoa estimate). Variable 14 divided by 12.57 m² (the area of a collection circle with a radius of 2 m). (See page 56 of the dissertation associated with this dataset.) |
19 |
Bagaces Period sherd density per square meters. Variable 15 divided by 12.57 m² (the area of a collection circle with a radius of 2 m). (See page 56 of the dissertation associated with this dataset.) |
20 |
Tempisque/Orosi Period sherd density per square meters. Variable 16 divided by 12.57 m² (the area of a collection circle with a radius of 2 m). (See page 56 of the dissertation associated with this dataset.) |
The first line of the ASCII text file, for example, looks like this:
A801-01,592440,1322240,314,9,0,9,0,0,0,0,0,0,0,0,0,0.000,0.000,0.000,0.000
This indicates that the ceramics pertain to the collection lot with the municipal sequence code A801-01. The collection was taken at E 592440, N 1322240, which had an altitude of 314 meters above sea level. The collection produced 9 non-diagnostic sherds and 0 diagnostic sherds, for a total of 9 sherds altogether. Since none of the sherds were diagnostic, there is no additional information about chronological placement or densities.
The last, or 1079th, line of the ASCII text file is:
TI192-01,605026,1343239,34,4,1,5,1,1,1,0,0,5,5,0,0,0.398,0.398,0.000,0.000
This indicates that the ceramics pertain to the collection lot with the municipal sequence code TI192-01. The collection was taken at E 605026, N 1343239, which had an altitude of 34 meters above sea level. The collection produced 4 non-diagnostic sherds and 1 diagnostic sherd, for a total of 5 sherds altogether. The single diagnostic in the collection could be attributed to either Ometepe or Sapoa, hence the maximal number of possible Ometepe sherds is 1, and the maximal number of possible Sapoa sherds is also 1. Since the collection produced 5 sherds in total, and 100% of diagnostic sherds can be attributed to Ometepe, the projected number of Ometepe Period sherds in the collection is 5. The projected number of Sapoa Period sherds in the collection is also 5. These projected number of sherds create a density of 0.398 sherds per square meter for both Ometepe and Sapoa.
Click here to download the file CERAMICS.TXT (82 KB) or the file CERAMICS.XLS (237 KB).