Interpolation ! - FAQS.TIPS

10 October 2010 1 9K Report

Good morning everybody,

I'm working on the relationship between globalization and income inequality. I want to interpolate annual data to obtain quarterly data. Should I use linear or cubic interpolation ?

Murtaza Khan

Though there is no perfect solution but my suggestion is that use the same trend for quarterly data as in annual data. For example, if 2014 to 2018 shows linear trend then use linear interpolation to obtain quarterly data.

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