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Hi all I am new to Mocha. I am trying to use it for my pet rails project. I seem to be getting loads of errors when I add mocha as a plugin. It seems to be conflicting with TinyMCE plugin http://johnwulff.com/ articles/2006/05/31/tinymce-with-ruby-on-rails I am getting the following errors ActionView::TemplateError: undefined method `using_tiny_mce?'' for

I would really appreciate it if someone can give suggestions on how to do spectra fitting in R using ordinary least square fitting and non-negativity constraints. The lm() function works well for ordinary least square fitting, but how to specify non-negativity constraints? It wouldn't make sense if the fitting coefficients coming out as negative in absorption spectra deconvolution. Thanks.

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