COMPARATIVE-STUDIES OF VARIOUS MISSING DATA TREATMENT METHODS - MALAYSIAN EXPERIENCE

In practice, there are problems of data reliability and ability of the data to represent the phenomena being considered. Often, the presence of gaps will shorten the records and will render spurious results or misleading conclusions. The aim of this study is to compare various tr eatment methods to make up the missing records. Temporal and spatial c haracteristics are studied before any record is being treated. Referen ce will be made to rainfall records for the Klang River basin, Malaysi a, Studies indicate that the most appropriate approach is the modified normal ratio method.