Histogram

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The Histogram window has three panes: amplitude histogram (blue), spectrum histogram (red), and duration histogram (green). Panes can be resized by dragging their borders, and can be tiled horizontally or vertically using the right-click menu.

Each pane has a button in the upper-left to "Run" it -- the histogram is generated from the Data Source. To customize a histogram, right-click it and choose "Properties".

Contents

Amplitude

The amplitude histogram shows the number of data points whose amplitude falls in each bin.

Properties

Bin count
number of bins
Autoscale
determine the min/max value of the Amplitude (x) axis from the data
Min, Max
if not Autoscale, use these endpoints for the Amplitude (x) axis
Y, X Title
axis labels
Copy Width, Height
dimensions of the image produced by "Copy Picture" in the #Right-click Menu
Bin Color
color of the bins
Fit Color
color of the fitting curve, if you're Curve Fitting (#Right-click Menu)

Spectrum

The spectrum histogram shows the re-binned moving window FFT of the data. The several FFT bins are grouped into a smaller number of histogram bins for simpler display.

The moving window procedure can overlap successive windows and multiply each window by a common window function to reduce edge effects.

Properties

Bin count
number of bins to display; if the FFT window is larger, FFT bins will be grouped into this many display bins
Log
displays log(Frequency) on the x axis
Autoscale
determines the endpoints of the x axis from the data
Min, Max
if not Autoscale, these are the endpoints of the x axis
Max window
FFT window size
a longer window takes more time but has lower frequencies and better resolution
Window function
outside the scope of this document (look them up)
Overlap
fraction of a window to move forward each time
(1 means the windows don't overlap; 2 means they overlap at halfway, so a window overlaps with the previous and next window)
Bars
toggles between bar- and line- style display
Color
color of the bars or under the line

Duration

The duration histogram shows the fraction of idealized events of a specified class whose duration falls in each bin.

Properties

Bin count
number of bins
Class
which conductance class to count; 0 is closed
Log
toggles log x axis (the style used by Modeling:MIL)
Autoscale
determines the endpoints of the x axis from the idealized data
Min, Max
if not autoscale, these are the endpoints of the x axis

Right-click Menu

Run
Re-generate the histogram using the latest Data Source and Properties
Print Picture
Prompts you to print the histogram
Copy Picture
Prompts you to copy a picture of the histogram to the clipboard
Copy Data
Copies the histogram series to the clipboard as tab-separated text
Extract
Saves the histogram series as a tab-separated text file
Extract to Excel
Generates the histogram as a worksheet and chart in MS Excel
Curve Fitting...
Shows the Curve Fitting dialog
Hide Curves
removes any fit curves that were made by Curve Fitting
Tile Horizontally/Vertically
toggles the way panels are tiled
Properties
shows a histogram's settings
after changing properties, you must Run again for changes to take effect


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