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Veronika Demyanova

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Articles

Recent activity by Veronika Demyanova

  • Writing Data to Microsoft Excel Tables

    IntroductionAn Excel table is more than a block of cells styled to look like a table. Excel tables have a header row with filter buttons, styles, and structured references for formulas. They also g...

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  • Data QA: Identifying Duplicate Attribute Values

    IntroductionDuplicate attribute values are those where multiple features share the same value for the same attribute. In many cases this is natural and expected; for example, the province (county/s...

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  • Data QA: Identifying Small Polygon Features

    IntroductionSmall polygons are polygons whose area is less than a specified tolerance. These can be identified by measuring polygon areas and then applying a test condition using a filter transform...

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  • Data QA: Identifying Bad Topology in Linear Networks

    IntroductionA linear network should consist of lines that meet at a point, without crossing. However, this is not always the case. There are various problems that can occur.A misaligned point occur...

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