Scholarly record
THE APPLICATION OF EXPLORATORY DATA ANALYSIS (EDA) AS A ROBUST METHOD IN ONE ELEMENT GEOCHEMICAL SURVEYING (CASE STUDY: SHIRINKAND 1:50000 SHEET)
Abstract
An exploratory data analysis (EDA) technique is based on the box plot and robust-class selection. Calculation of the threshold of anomalous data is based on the determined classes. In contrast to classic statistical processing ( ), in these methods, normalization isn’t needed. This paper is devoted to presentation of EDA application on stream sediment survey data of 1:50000 Shirinkand sheet. 180 Samples were analyzed for 23 elements and because of high censored values of Cd and P, they are omitted from data processing. Threshold and anomalous values of collected data were determined by means of classic statistical methods and EDA, that EDA results gain more reliability according to field checking.
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