MDDF - description
Multi Dimensional Data Format structure contains 9 variables, where d and TestParameters are the most essential, because they contains the data which can be further processed. The other variables are used for the correct data description – coordinate system, time zone, etc.
MDDF file name following the scheme: MDDF_EPIZODNAME_file_description.
Coordinate Reference System
The variable containing the data. The data may be as a single variable, a vector or an array. d structure contains the following fields:
Description of the fields of ‘d’ variable. A cell contains two columns: the first contains the name of the field/column of data, the second contains a description of them. All data must be specified.
The text description of the data contained in the file
Name of data format MDDF (Multi Dimensional Data Format).
When changing/expansion of the format change its version. It can have one number after the decimal point.
The variable containing the parameters of data. The data may be as a single variable, a vector or an array. TestParameters structure contains the following fields:
An array contains two columns: the first contains the name of the field/column of data, the second contains the data type number. All data must be specified. The Numbers of Data type:
1 – the real data without limits,
2 – the integer data,
3 – text value,
4 – the real number rounded to 0.1 (shown as 11),
5 – time in Matlab format serial time – the time display format; seconds with accuracy 1/10,
6 – the real data display in an engineering manner with one decimal place, e.g.: 3.5E6, (obsolete, recommended 2cd)
7 – the real data display in an engineering manner with two decimal place, (obsolete, recommended 2cd)
bc – (b and c are code digits) the real data is displayed in fix-point manner with at minimum b places before decimal and c decimal place,
e.g. For number 3.149.
1bc– the same manner as bc, but with place for a sign (space for sign „+”, sign ‘-’ for sign „-”),
2cd– (c and d are code digits), the real data is displayed in an engineering manner, with place for a sign (space for sign „+”, sign ‘-’ for sign „-”), with c decimal place and exponent expressed by d places. The sign in exponent is always displayed.
Description of the fields of ‘TestParameters’ variable. A cell contains two columns: the first contains the name of the field/column of data, the second contains a description of them. All data must be specified.
Acronym of Time Zone (http://en.wikipedia.org/wiki/List_of_time_zone_abbreviations), normally UTC
Table 1. The structure of Multi Dimensional Data Format
Table 2. The format of fields ‘d’ and ‘TestParameters’ variables
‘d’ structure contains the following fields:
Station_codename – Code name of the station
Measurements – Number of measurements or sample collection in the field. Structure containing the following fields:
Date – Time of measured parameter/sample collection
Tests – Number of test performed/ measured parameters.. Structure containing the following fields:
Test_name_id – Id of measured parameter/test
Result – Result of measured parameter/test
Result_duplicate (optional) – Quality assurance check
Stage (optional) – Stage of monitoring
Measurement_method (optional) – Method of measurement
‘TestParameters’ structure contains the following fields:
Test_name – Name of test/measured parameter
Unit – Unit of test/measured parameter
Type – Data type number
Technique (optional) – Technique
LOD (optional) – Limit of detection (Lower and Upper)
LODType (optional) – Data type number of LOD
Accreditation (optional) – Accreditation body