Generate a Frequency Histogram of Solid Model Node Values

RockWorks | Utilities | Solid | Statistics | Histogram

This program is used to get a general summary of the G value distribution within an existing solid model file. The summary is displayed as a plottable frequency histogram of the node values, reported as numbers or percent.

Example of use: If you are creating a solid model of geophysical or geochemical data using different modeling methods, you can create a summary of each model to view the differences in the range of the G-values.

! Be warned that histograms of high-density solid models may take a significant amount of time to create; they may even exceed the capacity of your computer system. (Solid model node counts can get huge: a 100 x 100 x 100 model contains a million node values to process.)

Feature Level: RockWorks Basic and higher

Menu Options
Step-by-Step Summary

Menu Options

• Solid:
  • Input Solid Model: Click on this item to browse for the name of the existing solid model file (.RwMod) to be read and summarized.
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• Titles: Enter the primary and secondary titles, if any. (More info)
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• Annotation
  • Plot Statistics: Insert a check here to include labels that represent the groupings of histogram bars into mean + and - 1SD, 2SD, 3SD and 4SD. These would correspond to the anomalous colors above. Click the button to establish the label color and size (as a percent of diagram width.).
  • Plot X Axis Labels: Check this item to plot labels along the bottom axis that represent the real number units of the variable being plotted. Click the button to establish the label color and size (as percent diagram width).
  • Plot Y Axis Labels: Check this to plot labels along the vertical axis that represent the frequency units. Click the button to establish the color, size and units.
    • Plot as Percentages: Check this item if you want the units to represent percent. If this box is cleared, the units will represent actual occurrences.
  • Y-Axis Scaling
    • Automatic: Select this for the program to determine automatically the vertical scale of the histogram bins, based on the data range.
    • Manual: Select this item to enter your own maximum value for the histogram bins.
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• Scaling + Bin Size: Click here to designate the width of each histogram bin as they will be displayed on the histogram plot, and to determine whether the bins are to be displayed at a linear or logarithmic scale. The scaling scheme you select will determine your options for selecting the bar widths. (More info)
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• Bin Colors: Click here to select how the histogram bars are to be filled. (More info)
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• Filtering
  • Minimum Cutoff: Check this to activate a low-value filter, and type in the minimum G value to be included in the histogram.
  • Maximum Cutoff: Check this to activate a high-value filter, and type in the maximum G value to be included in the histogram.
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• Legend: Insert a check here to include a legend listing a statistical summary for the data.
  Click this tab to access the legend layout options. (More info)
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• Aspect Ratio
  • Fixed Diagram Width:Height Ratio: Check this box if you wish to define a specific size ratio for the graph, excluding the legend (default 2.0 which representes twice as wide as high).
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• Other 2D Files
  Check this option to include existing RockWorks diagrams as layers with the current diagram.
  Click on this tab to select the existing diagrams (.Rw2D files) to be included. (More info)
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• Peripherals
  Check this option to include various peripheral annotations with your diagram. Options include titles, scalebars, and more.
  Click on this tab to activate the items and establish their settings. (More info)
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• Border
  Check this option to include a solid line border around the entire diagram.
  Click on this tab to specify the line style, thickness, and color.
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• Output Options: Use these settings to define whether the output graphic is to be saved (or displayed as "untitled"), how the file should be named, and whether it is to be displayed after it is created. It also offers export options. (More info)
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Step-by-Step Summary

1. Select the ModOps | Solid | Statistics | Histogram menu option.
2. Enter the requested menu settings, described above.
3. Click the Continue button to proceed.

   The program will read the real number values from the input file, and filter any low or high values if requested.

   The program will then determine the number of remaining samples that fall into each of the histogram "bins," counting them either as actual frequencies or as percent. If it is a large model, this can take some time (see "!" warning at the top of the page). The completed histogram plot will be displayed in a RockPlot2D tab in the Options window.

4. You can adjust any of the diagram option via the Options tab to the left (adjust color scheme, change scaling, etc.) and then click the Continue button again to regenerate the histogram.
5. View / save / manipulate / print / export the diagram in the RockPlot2D window.
   

See also

• Adding this program to your Playlist
• Adding this program to your Favorites
• Save/load/view menu settings
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Back to Solid Menu Summary

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