Visual Sample Plan (VSP) Models and Code Verification Page: 5 of 61
This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided to Digital Library by the UNT Libraries Government Documents Department.
The following text was automatically extracted from the image on this page using optical character recognition software:
" verification tests of five VSP drawing functions
" verification tests of the correspondence between values in selected VSP dialog boxes and the
Report View, Graph View, Map View, and Coordinates View
" documentation of algorithms to determine sampling location by regular simple random sampling,
adaptive-fill simple random sampling, and systematic grid sampling
" documentation of the two random number generators used in VSP
" the MATLAB code used to produced random test data
" the random test data used to check the correspondence of values in VSP dialog boxes and the
Report View, Graph View, Map View, and Coordinates View.
With regard to these tests of Version 0.9I, all were conducted successfully. Occasional problems
with regard to the input of certain values for the two-sample t-test option were found in Version 0.9H.
Also, the DPGD graph subtitle for this option did not display the alpha and beta decision error rates.
Both problems were corrected in Version 0.9I. Also corrected was a problem related to the removal of
sampling locations by the use of a comma-delimited ASCII text file of coordinate locations. Other
corrections were made for Version 0.9I: the Total Cost calculation was applied consistently to all
options, and the DPGD graph for the Wilcoxon rank sum test was corrected for null hypothesis "Site is
Version 0.9I of VSP replaced Version 0.9H on the Internet on February 1, 2001. It is anticipated
that Version 0.9I will be converted directly into Version 1.0 upon completion of documentation
contained herein, the finalization of a users manual (under development), and external peer review
conducted by the U.S. Environmental Protection Agency (EPA).
Here’s what’s next.
This report can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Report.
Gilbert, Richard O.; Davidson, James R.; Wilson, John E. & Pulsipher, Brent A. Visual Sample Plan (VSP) Models and Code Verification, report, March 6, 2001; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc935513/m1/5/: accessed May 19, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.