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  • PLS_Toolbox FAQ
    Contact Us Search Site Search for FAQ Frequently Asked Questions Browse FAQ Browse Documentation Wiki Browse EigenGuide Videos Search for Keyword s Issue How do I create a multivariate image from separate images Possible Solutions If you are performing PCA on a multivariate image you may need to construct a 3 dimensional MxNxP array where each image is MxN pixels and there are P images An easy way to do

    Original URL path: http://eigenvector.com/faq/index.php?id=30 (2016-04-27)
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  • PLS_Toolbox FAQ
    you are working in the Analysis GUI you should first save the model to the Matlab workspace The following description assumes you have given it the name modl but any name will work Next you ll have to extract the scores and loadings from the model and save them to a text file The whole model is stored in a structure which is just a container for all the variables of the model These other variables are called fields of the structure The scores and loadings are stored in the loads field of the model You can get at the scores doing something like this myscores modl loads 1 and likewise myloadings modl loads 2 Finally to save each of these to a text file you would use the commands save scores txt myscores ascii save loadings txt myloadings ascii Where myscores and myloadings are the variables you created when extracting the loadings and scores above Each will turn out to be m rows by n columns in Excel where n is the number of PCs you had in your model and m is either the number of samples for scores or number of variables for loadings Option 2 For

    Original URL path: http://eigenvector.com/faq/index.php?id=10 (2016-04-27)
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  • PLS_Toolbox FAQ
    of data is imported individually Hence if you have a 10 8 3 array you will import three slabs each of size 10 8 b Use the mouse to drag slab two onto slab one In the window that opens choose Augment and then choose augment in the Slabs direction c A two slab three way array has now replaced the first data matrix More slabs can be added in the same fashion Alternatively you may also open one slab in the dataset editor and then add additional slabs using File Import After selecting the next slab to import answer the same questions as in step c above Repeat for each slab Solution 2 For larger three way data In the DataSet editor you can import a full three way array if you have it organized as a two way matrix Upon importing the two way data you can reshape to a three way array using the menu item Transform Fold into 3 way For example you have the above matrices three slabs in one table matrix Slab1 Slab2 Slab3 hence have the three slabs below each other Upon importing use the menu option described above to Fold into 3

    Original URL path: http://eigenvector.com/faq/index.php?id=110 (2016-04-27)
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  • PLS_Toolbox FAQ
    Possible Solutions At the time this FAQ was written April 2014 there remains an incompatibility between the 32 bit Horiba LabSpec importer used to read NGC files and the 64 bit versions of Matlab and Solo If you are running the 64 bit version of either Matlab or Solo they are unable to call the importer and as such cannot directly import NGC files Although Eigenvector and Horiba are actively working to resolve this issue at this time there are two work around solutions for users A If you save your image in the SPC format this can be imported directly into 64 bit Solo or Matlab Once imported you will need to convert the data to an image by providing the size of the image in pixels the SPC format doesn t contain the specific image size information This is done in Solo or MIA Toolbox in Matlab using the DataSet Editor s menu Transform Convert to from Image In Matlab with MIA Toolbox installed you can also use the buildimage function B If you install the 32 bit version of Solo or Matlab with PLS Toolbox and MIA Toolbox installed this version of the software will be able

    Original URL path: http://eigenvector.com/faq/index.php?id=167 (2016-04-27)
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  • PLS_Toolbox FAQ
    FAQ Frequently Asked Questions Browse FAQ Browse Documentation Wiki Browse EigenGuide Videos Search for Keyword s Issue Why can t SPCREADR read multiple files I ve selected Possible Solutions SPCREADR uses the UIGETFILE function in MATLAB When in multiselct mode the UIGETFILE function has a limit of roughly 60 files To work around this limitation either import the files in multiple subsets of less than 60 or pass SPCREADR a

    Original URL path: http://eigenvector.com/faq/index.php?id=39 (2016-04-27)
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  • PLS_Toolbox FAQ
    Contact Us Search Site Search for FAQ Frequently Asked Questions Browse FAQ Browse Documentation Wiki Browse EigenGuide Videos Search for Keyword s Issue Why do some Excel files fail to import Possible Solutions Some Excel files with unusual row or column content may fail to import or import incorrectly Examples of such files include cases with empty cells in the top left corner In the case where an Excel file

    Original URL path: http://eigenvector.com/faq/index.php?id=175 (2016-04-27)
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  • PLS_Toolbox FAQ
    component matrices are constrained such that there are linear dependencies For example in PARALIND it may be specified that while the score matrix has five columns five components component one and three should be identical Or component four should be equal to the sum of component one to three Such constraints can be added in PARALIND and PLS Toolbox allows to implement constraints in all modes The following code exemplifies how it is possible to do PARALIND Load amino acid EEM fluorescence data as example PARALIND is not needed for these data so this is just an example load aminoacids Define dependency in mode two The actual loadings will be a set of three vectors multiplied by H B H B 1 0 1 0 0 1 0 1 0 Dependency in mode 2 Likewise for mode three but note that H C is 2 3 Therefore mode three loadings are really defined as a two not three column matrix multiplied by H C In this particular case the second row of H C defines that loading two and three must be identical for this model H C 1 0 0 0 1 1 dependency in mode 3 Define PARAFAC

    Original URL path: http://eigenvector.com/faq/index.php?id=143 (2016-04-27)
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  • PLS_Toolbox FAQ
    EigenGuide Videos Search for Keyword s Issue Can I install PLS Toolbox or Solo on more than one PC such as on my desktop and laptop computer Possible Solutions Under the single user license agreement we allow installation of our software products on multiple computers provided that these computers are accessed only by the licensed end user and only one copy is in use simultaneously Thus for example one copy can be installed on both a desktop and laptop provided that the single user uses only one of these at a time We allow use of a single user license by multiple end users if and only if the software is installed on a single computer that computer requires the end users to be physically present to access the software such as with a walk up computer in a laboratory and only one user is accessing the software at a time no concurrent signons Our license agreement does not permit single user licenses to be installed on multiple computers accessed by multiple individuals nor does it allow multiple users to access a single user license over a network If multiple users are going to access the software on multiple computers

    Original URL path: http://eigenvector.com/faq/index.php?id=121 (2016-04-27)
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