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- 10:41, 26 December 2018 Faq change the limit on how many rows or columns I can access in a plot (hist | edit) [2,168 bytes] imported>Lyle (Created page with "===Issue:=== How do I change the limit on how many rows or columns I can access in a plot (Plot Controls)? ===Possible Solutions:=== There is an intentional limit on the ma...")
- 09:16, 26 December 2018 Faq change the default plots created by the Scores button in the Analysis GUI (hist | edit) [883 bytes] imported>Lyle (Created page with "===Issue:=== ===Possible Solutions:=== To choose the default plots created by the scores button in the Analysis GUI, use the following command at the Matlab command line:...")
- 09:05, 26 December 2018 Faq how do I add my own preprocessing methods to the Preprocess GUI (hist | edit) [1,516 bytes] imported>Lyle (Created page with "===Issue:=== How do I add my own preprocessing methods to the Preprocess GUI? ===Possible Solutions:=== Version 3.0 of the PLS_Toolbox introduced advanced preprocessing fun...")
- 08:34, 26 December 2018 Faq how do I add confidence ellipses around groups of samples (hist | edit) [1,519 bytes] imported>Lyle (Created page with "===Issue:=== How do I add confidence ellipses around groups of samples? ===Possible Solutions:=== Version 4.1 introduces class-based confidence ellipses. Any figure which i...")
- 10:25, 25 December 2018 Release Notes Version 8 7 (hist | edit) [2,406 bytes] imported>Scott (Created page with "==Changes and Bug Fixes in Version 8.7== Version 8.7 of PLS_Toolbox and Solo was released in January, 2019. For general product information, see [http://www.eigenvector.com/s...")
- 09:19, 19 December 2018 Faq what kind of training material comes with a PLS Toolbox or Solo license (hist | edit) [1,197 bytes] imported>Lyle (Created page with "===Issue:=== What kind of training material comes with a PLS_Toolbox or Solo license? ===Possible Solutions:=== We have three sources of free training included with our sof...")
- 09:00, 19 December 2018 Faq why is my model built using command line functions different from the same one I built in Analysis GUI (hist | edit) [1,238 bytes] imported>Lyle (Created page with "===Issue:=== Why is my model built using command line functions different from the same one I built in Analysis GUI? ===Possible Solutions:=== If you build a model in Analy...")
- 08:55, 19 December 2018 Faq why does PCAENGINE change the sign of the loadings returned by SVD (hist | edit) [904 bytes] imported>Lyle (Created page with "===Issue:=== Why does the PCAENGINE change the sign of the loadings returned by SVD? ===Possible Solutions:=== A PCA model is ambiguous with regards to sign flips, i.e. if...")
- 08:51, 19 December 2018 Faq get different cross validation results from command line crossval routine compared to Analysis window (hist | edit) [954 bytes] imported>Lyle (Created page with "===Issue:=== Why do I get different cross-validation results from the command-line crossval routine compared to the Analysis window? ===Possible Solutions:=== There are two...")
- 16:18, 18 December 2018 Faq where to find regression vector and regression intercept for a PLS or PCR model (hist | edit) [4,164 bytes] imported>Lyle (Created page with "===Issue:=== Where do I find the regression vector (B) and regression intercept (B<sub>0</sub>) for a PLS or PCR model? ===Possible Solutions:=== NOTE: If you are trying to...")
- 16:04, 18 December 2018 Vipnway (hist | edit) [1,048 bytes] imported>Scott (Created page with "===Purpose=== Calculate Variable Importance in Projection from NPLS model. ===Synopsis=== :vip_scores = vipnway(model) ===Description=== Variable Importance in Projection...")
- 14:32, 18 December 2018 Faq where to find a description of the parafac2 constraints (hist | edit) [637 bytes] imported>Lyle (Created page with "===Issue:=== Where do I find a description of the parafac2 constraints? ===Possible Solutions:=== The constraints for PARAFAC2 algorithm are basically identical to those fo...")
- 12:06, 18 December 2018 Xgbengine (hist | edit) [3,861 bytes] imported>Scott (Created page with "===Purpose=== XGBoost for classification or regression using the XGBoost package. ===Synopsis=== : model = (x,y,options) : cv = (x,y,options) : pred = (x,y,model,option...")
- 10:43, 18 December 2018 Xgbda (hist | edit) [8,978 bytes] imported>Scott (Created page with "===Purpose=== Gradient Boosted Tree Ensemble for classification (Discriminant Analysis). ===Synopsis=== : model = xgbda(x,options); %identifies model using classes...")
- 16:33, 17 December 2018 Xgb (hist | edit) [7,920 bytes] imported>Scott (Created page with "===Purpose=== Gradient Boosted Tree (XGBoost) for regression or classification. ===Synopsis=== :model = xgb(x,y,options); %identifies model (calibration step) :pre...")
- 15:11, 17 December 2018 Datafit engine (hist | edit) [5,293 bytes] imported>Scott (Created page with "===Purpose=== Asymmetric least squares with smoothing, baselining & robust fitting. ===Synopsis=== : [yb,z,options] = datafit_engine(y,options); : options = datafit_engine('...")
- 14:35, 17 December 2018 Baselineds (hist | edit) [1,799 bytes] imported>Scott (Created page with "===Purpose=== Wrapper for baselining functions. ===Synopsis=== :[baselined_data,baselines] = baselineds(spec,options); %Calibrate and apply. : spec = baselineds(baselined_d...")
- 13:42, 5 December 2018 Faq how does PCA cross validation work in PLS Toolbox and Solo and how do I set up command line (hist | edit) [3,838 bytes] imported>Lyle (Created page with "===Issue:=== How does PCA cross-validation work in PLS_Toolbox and Solo and how do I set up the command-line options to best use it? ===Possible Solutions:=== '''Missing Da...")
- 13:06, 5 December 2018 Faq how do I use specific known pure component spectra with MCR (hist | edit) [4,209 bytes] imported>Lyle (Created page with "===Issue:=== How do I use specific known pure component spectra with MCR (Multivariate Curve Resolution)? ===Possible Solutions:=== MCR is a powerful technique, particularl...")
- 12:32, 5 December 2018 Faq how do I specify all options on the same line that contains the call to a function (hist | edit) [481 bytes] imported>Lyle (Created page with "===Issue:=== How do I specify all options on the same line that contains the call to a function? ===Possible Solutions:=== See the following FAQ item: Faq_specify_all_op...")
- 12:28, 5 December 2018 Faq how do I retrieve and display predictions from a model structure in command window (hist | edit) [743 bytes] imported>Lyle (Created page with "===Issue:=== How do I retrieve and display predictions from a model structure in the command window? ===Possible Solutions:=== The predictions are stored in the .pred field...")
- 11:58, 5 December 2018 Faq use custom cross validation option (hist | edit) [2,015 bytes] imported>Lyle (Created page with "===Issue:=== How do I use the "custom" cross-validation option? ===Possible Solutions:=== In PLS_Toolbox, the user can also manually specify the subsets of samples to be us...")
- 10:07, 5 December 2018 Faq how do I make PlotGUI send plot to a new figure and not overwrite current figure (hist | edit) [934 bytes] imported>Lyle (Created page with "===Issue:=== How do I make PlotGUI send its plot to a new figure and not overwrite the current figure? ===Possible Solutions:=== PlotGUI acts much like the standard Matlab...")
- 10:04, 5 December 2018 Faq how do I interpret the misclassification results reported by crossval (hist | edit) [2,221 bytes] imported>Lyle (Created page with "===Issue:=== How do I interpret the Misclassification results reported by crossval? ===Possible Solutions:=== The Crossval function (used for cross-validation) allows "disc...")
- 08:40, 5 December 2018 Faq how do I change the default options for a function (hist | edit) [375 bytes] imported>Lyle (Created page with "===Issue:=== How do I change the default options for a function? ===Possible Solutions:=== This question is answered on the Wiki page: Working_With_Function_Options#Setti...")
- 12:24, 4 December 2018 Faq how do I calculate scores from a PLS or PLSDA model (hist | edit) [1,024 bytes] imported>Lyle (Created page with "===Issue:=== How do I calculate scores from a PLS or PLSDA model? ===Possible Solutions:=== Because of the unique relationship between weights and loadings in a PLS model,...")
- 11:53, 4 December 2018 Faq how do manually calculate the limits for scores (hist | edit) [1,488 bytes] imported>Lyle (Created page with "===Issue:=== How do I manually calculate the limits for scores? ===Possible Solutions:=== Individual scores limits can be calculated using the code below, given a PCA model...")
- 11:40, 4 December 2018 Faq how do I calculate my own T2 and Q limits (hist | edit) [1,629 bytes] imported>Lyle (Created page with "===Issue:=== How do I calculate my own T<sup>2</sup> and Q limits? ===Possible Solutions:=== Confidence limits for Q residuals (also known as "SPE") and Hotellings T<sup>2<...")
- 09:29, 4 December 2018 Faq how to automate PCA analysis for multiple images (hist | edit) [2,212 bytes] imported>Lyle (Created page with "===Issue:=== How do I automate PCA analysis for multiple images? ===Possible Solutions:=== Because the version of IMGPCA provided in the standard PLS_Toolbox requires some...")
- 13:45, 3 December 2018 Faq how are Q residuals and Hotellings T2 calculated in PLS models (hist | edit) [1,330 bytes] imported>Lyle (Created page with "===Issue:=== How are the Q-residuals and Hotelling's T^2 (T2) values calculated for PLS models? ===Possible Solutions:=== Q and T^2 are done in PLS exactly the as they are...")
- 13:34, 3 December 2018 Faq specify all options of a function or only those different from defaults (hist | edit) [647 bytes] imported>Lyle (Created page with "===Issue:=== Do I have to specify all the options to a function or only the ones that are different from the defaults? ===Possible Solutions:=== Many PLS_Toolbox functions...")
- 12:36, 3 December 2018 Faq why R2014b give error cannot convert double value to a handle (hist | edit) [884 bytes] imported>Lyle (Created page with "===Issue:=== Why does R2014b give me "Error using matlab.ui.Figure... Cannot convert double value to a handle" (or similar)? ===Possible Solutions:=== The R2014b release of...")
- 12:12, 3 December 2018 Faq why PLS Toolbox have a boxplot function that conflicts with Stats Toolbox (hist | edit) [2,327 bytes] imported>Lyle (Created page with "===Issue:=== Why does PLS_Toolbox have a "boxplot" function that conflicts with the Mathworks Statistics Toolbox function of the same name? ===Possible Solutions:=== There...")
- 11:51, 3 December 2018 Faq why get missing data warning (hist | edit) [1,902 bytes] imported>Lyle (Created page with "===Issue:=== Why do I get the warning/notice "Missing Data Found - Replacing with "best guess" from existing model. Results may be affected by this action." ===Possible Solu...")
- 11:22, 3 December 2018 Faq why can't I recompile PLS Toolbox functions (hist | edit) [1,560 bytes] imported>Lyle (Created page with "===Issue:=== Why can't I recompile the PLS_Toolbox functions? ===Possible Solutions:=== From time to time, we are asked about recompiling PLS_Toolbox functions. For example...")
- 10:29, 3 December 2018 Faq why some axis labels and titles upside down in MIA Toolbox (hist | edit) [1,221 bytes] imported>Lyle (Created page with "===Issue:=== Why are some axis labels and titles on my axes upside-down when I'm viewing images in MIA_Toolbox? ===Possible Solutions:=== This problem is related to the ope...")
- 10:03, 30 November 2018 Faq difference between a loading and a weighting (hist | edit) [1,388 bytes] imported>Lyle (Created page with "===Issue:=== What is the difference between a loading and a weighting? ===Possible Solutions:=== When performing Principal Components Analysis (PCA), you get loadings, P,...")
- 09:51, 30 November 2018 Faq what is PLS1 v PLS2 and how to create separate PLS1 models from multi column y block (hist | edit) [1,282 bytes] imported>Lyle (Created page with "===Issue:=== What is PLS1 vs PLS2 and how do I create separate PLS1 models when I have a multi-column y-block? ===Possible Solutions:=== If your y-block contains multiple y...")
- 09:42, 30 November 2018 Faq internal tests used to select suggested number of PCs (hist | edit) [426 bytes] imported>Lyle (Created page with "===Issue:=== What internal tests are used to select "suggested" number of PCs? ===Possible Solutions:=== The "suggested" number of components is calculated with the choosec...")
- 16:28, 29 November 2018 Faq what do the four Fit / Unique Fit stats mean in MCR PARAFAC (hist | edit) [1,770 bytes] imported>Lyle (Created page with "===Issue:=== What do the four Fit/Unique Fit statistics mean in MCR and PARAFAC models? ===Possible Solutions:=== MCR and PARAFAC both report the sum-squared (SSQ) captured...")
- 14:13, 29 November 2018 Faq units for RMSEC and RMSECV for PLSDA (hist | edit) [1,829 bytes] imported>Lyle (Created page with "===Issue:=== What are the units used for RMSEC and RMSECV when cross-validating PLSDA models? Why do the cross-validation curves look strange for PLSDA? ===Possible Solutio...")
- 13:27, 29 November 2018 Faq what are reduced T^2 and Q Statistics (hist | edit) [1,193 bytes] imported>Lyle (Created page with "===Issue:=== What are the "Reduced" T^2 and Q Statistics? ===Possible Solutions:=== Hotelling's T^2 (T-squared) and Q residuals (sum squared residuals) are often reported i...")
- 13:18, 29 November 2018 Faq what are relative contributions (hist | edit) [508 bytes] imported>Lyle (Created page with "===Issue:=== What are "Relative Contributions"? ===Possible Solutions:=== Relative Contributions are residuals or Hotelling's T^2 contribution reported as the difference be...")
- 12:13, 29 November 2018 Splithalf (hist | edit) [2,886 bytes] imported>Scott (Created page with "===Purpose=== Performs splithalf validation of parafac and parafac2 models. ===Synopsis=== :[result,fig] = splithalf(x,ncomp,options) :[result,fig] = splithalf(x,mode...")
- 09:52, 29 November 2018 Faq why get negative scores when all modes are set to nonnegativity (hist | edit) [1,421 bytes] imported>Lyle (Created page with "===Issue:=== Nonnegativity (PARAFAC, PARAFAC2, Tucker): Why do I get negative scores when all modes are set to nonnegativity? ===Possible Solutions:=== This can happen, whe...")
- 09:40, 29 November 2018 Faq out of memory error when analyzing data (hist | edit) [4,428 bytes] imported>Lyle (Created page with "===Issue:=== I keep getting "out of memory" errors when analyzing my data. What can I do? ===Possible Solutions:=== The size of data analyzable in PLS_Toolbox or Solo is on...")
- 09:35, 29 November 2018 Faq java lang OutOfMemoryError (hist | edit) [3,418 bytes] imported>Lyle (Created page with "===Issue:=== What can I do if I get a java.lang.OutOfMemoryError error? ===Possible Solutions:=== Matlab or Solo may return a Java error like this: > lasterror.message =...")
- 13:14, 28 November 2018 Faq use custon cross validation option (hist | edit) [0 bytes] imported>Lyle (Created page with "===Issue:=== How do I use the "custom" cross-validation option? ===Possible Solutions:=== In PLS_Toolbox, the user can also manually specify the subsets of samples to be us...")
- 09:58, 28 November 2018 Faq obtain or use recompilation license for PLS Toolbox (hist | edit) [3,622 bytes] imported>Lyle (Created page with "===Issue:=== How do I obtain or use a recompilation license for PLS_Toolbox? ===Possible Solutions:=== The standard [http://www.eigenvector.com/software/license_evri.html P...")
- 08:43, 28 November 2018 Faq make DataSet backwards compatible (hist | edit) [1,090 bytes] imported>Lyle (Created page with "===Issue:=== How do I make a DataSet backwards compatible? ===Possible Solutions:=== I received the following error when I loaded a dataset into Matlab: Warning: Loaded da...")