1.      What are some useful data preparation

1.      What are some useful data preparation and data exploration features of the Cognos Analytics software?


13-09-20 | 14:35:16

Row filtration, deletion, and inversion is one of the useful tools that I managed to use in this week's assignment. The tool allowed me to identified rows with consistent "null" value and excluded from the dataset. Column deletion was also essential in data cleaning. I was able to delete one column since more than 33% of values were "null." One of the important tools that are provided through exploration is the relationship map. This tool enables one to identify the relationship between variables. Through this tool, I was able to identify irrelevant variables, i.e., those variables that do not influence major variables.

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