Import Unit Value Index 2017

The price index is important to boost Indonesia's import prices per unit weight (kg). The price index of materials used for parts related to components and income. The import price index is based on nominal value, then aggregated and issued in double-digit HS group and larger group of goods 21 classes of HS goods (parts).

Several factors in different price data and data data, and quality of the same goods. Heterogeneity caused by diverse and varied types of specific goods. Poor accuracy of data is important because of the record in import documents. The index of change is not solely caused by an increase in the price of the goods, but also because the quality that affects the goods increases.

The index of imported commodity prices 2017 using the base year 2013 (2013 = 100). Commodity price by sharing the value of CIF (USD) with the weight of the item (kg). Price data in an HS group of eight-digit goods may vary greatly and contain outliers. Outlier detection can be done through the method of graphk (boxplot) and statistical value of castor distance The result of regression model value and weight of goods. Data will be removed to reduce heterogeneity. Homogeneous data will be calculated its median value and then compared with the average. The homogeneity of data from the quartile spacing or Inter Quartile Range (IQR) is less than one.