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summary of residual analysis software

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  • summary of residual analysis software

    Dear all:

    About one weeks ago, I posted a request about residual analysis
    The request was the following:

    " I would like to use residual analysis to determine the cutoff
    frequency for smoothing data of my research project. Does anyone know of

    the pertinent software that is available for public or for academic

    Thanks for all the responses. The following is a summary of the

    1) There is a DATAPAC III which is a comprehensive laboratory
    system designed for Windows operating system. Modules are available to
    fulfill a broad range of data acquisition, data file management, signal
    processing, and data reduction, display, and analysis operations in a
    integrated fashion.

    You can e-mail them:
    You can also look up the web page:

    ************************************************** ***********

    2) I have freeware available (for power macs) that does this. The
    software is
    called QuickSAND is found at

    ************************************************** ***********

    3) I think the best option is to write a macro in microsoft excel.
    We have a similar system here and it works just fine, use the approach
    in winters
    1990 book.

    ************************************************** *********

    4) We use Woltring's generalized cross-variance natural B-spline
    filter to
    do our smoothing. It is able to determine the best cutoff frequency for
    smoothing your data and it can handle missing data points in a
    continuous set
    (e.g. we use infrared markers to track arm movement and Woltring's
    program is
    able to handle a dataset where the marker went out of view of the

    You can find it and other public domain analysis programs at

    ************************************************** ***************

    5) Check with

    ************************************************** *******

    6) I'd be happy to send you the souce code for a program I wrote in C
    performs a residual analysis for all markers and coordinate directions
    independently. You could compile the program and use it, or use the
    source as a guide for your own program. Let me know if you would like
    it. One note, it is currently written to read data files in the Motion
    Analysis Corp. .P3D format.

    Thanks to all the responders again

    Louisa Law

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