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| Nama | Teks sekarang |
|---|---|
| r Inggris (en) | == Cleaning Messy Data == === Learning objectives === After completing this activity, you will be able to: * determine whether an existing dataset has a structure that is suitable for basic analyses * recommend a suitable structure for an existing (currently unsuitable) dataset * identify the problems in a dataset that prevent its use for analysis * manipulate such a dataset into a form suitable for analysis, applying existing skills, and using the following new skills: ** view multiple worksheets at the same time *** within a single instance of Excel *** using multiple instances of Excel (Excel 2010) ** copy a worksheet to the same, or another, workbook ** unmerging of cells ** text to columns ** find and replace. |