Algorithms For Dummies

  Structuring Data 

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Matching data from various sources

Interacting with data from a single source is one problem; interacting with data 

from  several  sources  is  quite  another.  However,  datasets  today  generally  come 

from  more  than  one  source,  so  you  need  to  understand  the  complications  that 

using multiple data sources can cause. When working with multiple data sources, 

you must do the following:

 

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Determine whether both datasets contain all the required data. Two design-

ers are unlikely to create datasets that contain precisely the same data, in the 

same format, of the same type, and in the same order. Consequently, you 

need to consider whether the datasets provide the data you need or whether 

you need to remediate the data in some way to obtain the desired result, as 

discussed in the next section.