search for: unmixing

Displaying 6 results from an estimated 6 matches for "unmixing".

2006 Mar 23
1
PCA, Source analysis and Unmixing, environmental forensics
...mental forensics (determination of the sources and/or groupings in mixtures of organic chemicals in the field). The goal is to determine in there are groups of samples with similar/dissimilar compositions, and to assign samples to a potential source or a mixture of sources based on the composition (unmixing and source allocation). Typically there are 10 to 50 chemicals that have been analyzed in all of the samples. In most cases concentrations are converted to proportion of total as we are interested in composition rather that simple dilution. I have had great success with ratio analysis; simple expl...
2017 Jul 01
1
manual pitch modification
...+-------------------+----------------+ | 6 | +------------+ +-------------+ +-->| Stereo |-->| Sample Rate |--> | Unmixing | 7 | Conversion | 8 +------------+ +-------------+ Thanks, -Mark -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.xiph.org/pipermail/opus/attachments/20170630/6d14737d/attachment.html>
2005 Mar 17
1
Optimization of constrained linear least-squares problem
Dear R-ians, I want to perform an linear unmixing of image pixels in fractions of pure endmembers. Therefore I need to perform a constrained linear least-squares problem that looks like : min || Cx - d || ? where sum(x) = 1. I have a 3x3 matrix C, containing the values for endmembers and I have a 3x1 column vector d (for every pixel in the im...
2005 Dec 13
1
Polytopic Vector Analysis (PVA)
I am curious whether anybody has or is developing this capability within R. I have not found any software yet that has this capability and I am not sure whether it is too new a method and nobody is actually using it, or if there are other means to get the same analysis that I do not know of. Any information regarding developments or use of this method would be helpful. Melanie Edwards
2009 Jul 02
2
working with texts
WinXP, R-2.9.1 LS., I have been trying to solve a (for me) tricky issue. No matter what I've tried, I just can't find a way to do this. This is the issue: I have a text file (ansi text) "titles.txt" with lines of text; here is an example of such a file: >>>>> a brief history of polio vaccines anti-vaccination movements and their interpretations early warning
2000 Jun 13
1
Re: [livid-ovd] putting the video into ogg multimedia
I'll get to the technical aspects of these letters in a bit; they require an a little thought and I'm knee deep in the codebook engine right now... > <RANT> > > I personally favor the MNG approach over the Ogg strategy because of the way > the licensing agreements read. Ogg is more like "you are free to use this, > just don't change it without our