Hands-On Machine Learning on Google Cloud Platform
by Giuseppe Ciaburro, V Kishore Ayyadevara, Alexis Perrier, Bryan Fry, Antonio Gulli
Visual functionality
Previously, we have talked about the histogram at the top of each column. This graph displays the count of each value detected in the column (for string data) or the count of values within a numeric range (for numerical data).
The visual functionality offered by Google Cloud Dataprep refers precisely to the use of these histograms to identify unusual values or outliers, which should be removed or corrected before performing any analysis on the entire dataset.
The type of histogram returned depends on the type of data contained in the column. In fact, for numeric data, each bar refers to a range of values and the bars are sorted in numerical order. For categorical types, each vertical bar covers a single value, ordered ...
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