Histogram View

Histograms are used to display the distribution of field values. Using histograms, it is possible to read the value ranges in which the data samples fall.

Highlight the dataset to view and click the icon for Histogram View from the Views menu. Alternatively, right click on the dataset, select View > Histogram.

Fields of the following data types can be included:

  • Integers

  • Doubles

  • Strings

Histogram view

Histograms display the distribution of field values. Using histograms, it is possible to read the value ranges in which the data samples fall.

By changing the number of bins, the dataset subgroup sizes will change. This will have an effect on the histogram shape, and is used to further investigate the distribution of the field values.

Outside bins are used to collect all the data that are of the defined limits. These bins will be either above the maximum limit, or below the minimum limit, and will be shown in an alternate colour.  

Bin details: Holding the mouse over a bin will show the following details

  • Count:The number of data values in the bin.

  • Percentage:The percentage of the total data which fall into the bin.

  • Minimum data value, which is included

  • Maximum data value, which is excluded.

Bad quality

Bad quality data is not included in the histograms.

Outside bins: this data is still good quality. If data falls outside the dataset minimum and maximum values, it is shown in the outside bins.

Zooming
  • Click and drag with the left mouse button on the view to zoom in and magnify the x axis.

  • Click the on the x scroll axis to return to the original view.

Bins

By changing the number of bins, the dataset subgroup sizes will change. This will have an effect on the histogram shape, and is used to further investigate the distribution of the field values.

Configuration

Properties

Select the field to be plotted on the histogram, from the list of available fields in the drop down menu. The field type will be listed.

Fields of the following data types can be included:

  • Integers

  • Doubles

  • Strings

Configure the graph properties for your histogram view, noting that labels per bin can only be shown for double and integer fields, and not for string fields.

Bins

Number of bins: Select the number of bins required for data subgroups. A default number is listed which can be changed.

  • The minimum number of bins is 1 and the maximum is 200.

Dataset min/max: Either select to use the dataset minimum and  maximum values, or define your own values.

  • Minimum: Set the minimum by entering the numerical value of the minimum in the Minimum field. If the entered minimum is greater than the dataset minimum, then the outer-most bin will change to an alternate colour. The height of that bin is equal to the amount of time spent below the minimum. The mathematical notation for the outer bin is: (-∞, Min].

  • Maximum: Set the maximum by entering the value of the maximum in the Maximum field. If the entered maximum is less than the default maximum, then the outer-most bin will change an alternate colour. The height of that bin is equal to the amount of time spent above the maximum. The mathematical notation for the outer bin is: [Max, ∞).

  • The maximum value will always fall into the outside bin, if you use the dataset min/max field.

  • To include the maximum field value, customize your own bin limits.

NOTE: All data outside the minimum and maximum limits will be treated as bad quality.

 


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CSense 2023- Last updated: June 24,2025