# Sub-sampling a dataset

Gretl Manual: Gnu Regression, Econometrics and Time-series Library
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# Chapter 6. Sub-sampling a dataset

# Introduction

Some subtle issues can arise here. This chapter attempts to explain the issues.

A sub-sample may be defined in relation to a full data set in two different ways: we will refer to these as "setting" the sample and "restricting" the sample respectively.

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Retrieving internal variables |  | Setting the sample