Histogram Express VI

LabView Acquire Signals Express VIs

Histogram Express VI

Owning Palette: Time-Domain Measurements Express VIs

Installed With: LabVIEW SignalExpress

Calculates the discrete histogram of the input signal. The Histogram result runs continuously and accumulates the data from all incoming signals until you click the Reset Histogram button on the title bar of the Histogram configuration view or you change a configuration parameter. You can compute the resulting bin values as an absolute number of occurrence or as a percentage of the total number of occurrences. You also can display the accumulated bin values in a logarithmic scale. Click the Auto-config button below the Histogram graph to display standard start-up configuration options.

Dialog Box Options
Block Diagram Inputs
 Place on the block diagram  Find on the Functions palette

Dialog Box Options

ParameterDescription
Input SignalDisplays the input signal.
  • Displayed signal—Specifies the signal(s) to display in the preview graph(s). This option appears only when you select a group of signals for the input.
    Note  If the input signals include scalar values that depend on the values of input waveform signals, you cannot specify to display all signals in the preview graph(s).
HistogramDisplays the histogram of the input signal.
Auto-config.Sets the values in Number of bins, Minimum value, and Maximum value based on the input signal.
Log. bin valuesScales the bin values axis to logarithmic scale. The default is to not scale the bin values axis to logarithmic scale.
InputContains the following option:
  • Input signal—Specifies the analog waveform for the step.
ConfigurationContains the following option:
  • Histogram Specifications—Contains the following options:
    • Number of bins—Specifies the number of bins. The default is 20.
    • Minimum value—Specifies the minimum value. The default is –1.
    • Maximum value—Specifies the maximum value. The default is 1.
    • Bin value in percent—Configures the histogram result to scale by percent. The default is to scale the result by percent.
    • Calculation enabled—Enables calculation of the histogram. The default is to enable the calculation.

Block Diagram Inputs

ParameterDescription
Input SignalDisplays the input signal.
  • Displayed signal—Specifies the signal(s) to display in the preview graph(s). This option appears only when you select a group of signals for the input.
    Note  If the input signals include scalar values that depend on the values of input waveform signals, you cannot specify to display all signals in the preview graph(s).