The pictures below show an example field, roughly 400 x 1600 meters. The goal of the algorithm is to find a set of sample locations with an optimal distribution over the count rate, distributed such that the smallest distance between any 2 samples or a sample and the edge of the field is maximized. They are removed from the collection of possible sample locations. Cells too close to the edge of the mapped area are considered to be undesired sample locations. When the mapped area has been divided into cells, a set of these cells will be selected as sample locations. The total mapped surface area is used to advice on the number of samples to take. The centre of each cell is a potential sample location, so the size of the cells determines the resolution of the sampling grid.įrom the mapped area thus defined, the surface area in square meters is be determined. The remaining data points describe a mapped area, which willbe divided into square cells of a predefined size. A poor GPS fix is one example of points getting assigned a position outside of the actually mapped area. Outliers are points which have a position too far away from other points in the data set. For this, outliers are removed from the data set first.
The first goal is to determine the area mapped in the survey and to divide this area into square cells. Among other properties, each point contains a position (latitude and longitude in WGS84 coordinates) and a count rate. The input for the sample finder algorithm is a collection of data points. Secondly, an optimal sample distribution within this area has to be found. First the mapped area has to be determined. The sample finder algorithm consists of 2 parts.
This advice is based on the total mapped area. An advice is given on the number of samples to take.
#Mass finder instrument pro#
Die Fix-Konto-Provision pro Aktie beginnt bei 0,012 mit einem Mindestbetrag von 1,2 pro Auftrag.
Die Super-Konto-Provision pro Aktie beginnt bei 0,008 mit einem Minimum von 1,2 pro Auftrag. The sample finder can be activated from the Map viewer. Die Freedom Finance-Kommissionsgebühr hängt von der Art des Handelskontos und dem von Ihnen gehandelten Instrument ab. The algorithm uses both spatial and count rate to obtain an optimal distribution over the mapped area.
#Mass finder instrument software#
The MASS data logging software contains a sample finder which can be used to locate optimal distributed sampling locations.
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