imported>Lyle |
imported>Scott |
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| __TOC___
| | ===Purpose=== |
| ==Importing / Exporting== | |
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| [[faq_concatenate_multiple_files|How do I concatenate multiple files into a single DataSet?]]
| | Calculate Variable Importance in Projection from NPLS model. |
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| [[faq_create_multivariate_image_from_separate_images|How do I create a multivariate image from separate images?]]
| | ===Synopsis=== |
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| [[faq_export_PCA_scores_and_loadings_to_text_file|How do I export PCA scores and loadings to a text file (to read into MS Excel, for example)?]]
| | :vip_scores = vipnway(model) |
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| [[faq_import_three-way_data|How do I import three-way data into Solo or PLS_Toolbox?]]
| | ===Description=== |
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| [[faq_import_horiba_NGC_64bit |Why can't I import a Horiba NGC file on my 64-bit computer?]]
| | Variable Importance in Projection (VIP) scores estimate the importance of each variable in the projection used in a NPLS model and is often used for variable selection. A variable with a VIP Score close to or greater than 1 (one) can be considered important in given model. Variables with VIP scores significantly less than 1 (one) are less important and might be good candidates for exclusion from the model. It works for X n-way and Y up to two-way and it assume samples are in the first mode. |
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| [[faq_SPCREADR_cant_read_multiple_files |Why can't SPCREADR read multiple files I've selected?]]
| | ====Inputs==== |
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| [[faq_some_EXCEL_files_fail_to_import |Why do some Excel files fail to import?]]
| | * '''model''' = A NPLS model structure from a NPLS model. |
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| ==General== | | ====Outputs==== |
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| [[faq_PARALIND_in_PLS_Toolbox |Can I do PARALIND in PLS_Toolbox?]] | | * '''vip_scores''' = a cell array with dimensions of: [modes 2 to n X # of columns in Y]. The first row in the cell array corresponds to VIP Scores for mode 2. The second row corresponds to VIP Scores for mode 3. |
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| [[faq_install_on_more_than_one_PC | Can I install PLS_Toolbox (or Solo) on more than one PC, such as on my desktop and laptop computer?]]
| | ===See Also=== |
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| [[faq_multiple_class_sets_together_in_SIMCA_PLSDA_LDA | Can I use multiple class sets (categorical variables) together in a SIMCA, PLSDA, or LDA model?]] | | [[selectvars]], [[genalg]], [[ipls]], [[plotloads]], [[pls]], [[plsda]], [[sratio]], [[rpls]], [[vip]] |
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| [[faq_more_info_on_R_Squared_statistic | Can you give me more information on the R-Squared statistic?]] | |
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| [[faq_how_RMSEC_and_RMSECV_related to R2Y_and_Q2Y_seen_other_software | How are RMSEC and RMSECV related to R2Y and Q2Y I see in other software?]] | |
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| [[faq_convergence_of_PARAFAC| Convergence of PARAFAC. How much variation between models is expected a particular PARAFAC is fit multiple times with the same settings?]] | |
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| [[faq_does_software_stop_working_if_maintenance_expires | Does the software stop working if my maintenance expires?]] | |
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| [[faq_report_a_problem_with_PLS_Toolbox | How and where do I report a problem with PLS_Toolbox?]] | |
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| [[faq_how_are_T_contributions_calculated | How are T-contributions calculated?]] | |
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| [[faq_how_are_ROC_curves_calculated_for_PLSDA | How are the ROC curves calculated for PLSDA?]]
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| [[faq_how_are_error_bars_calculated_regression_model | How are the error bars calculated for a regression model and can they be related to a confidence limit (confidence in the prediction)?]]
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| [[faq_improve_performance_with_PLS_Toolbx_and_Matlab_on_Mac | How can I improve performance with PLS_Toolbox and Matlab on the Mac platform?]]
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| [[faq_assign_classes_for_samples_in_a_DataSet | How do I assign classes for samples in a DataSet?]]
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| [[faq_build_a_classification_model_from_class_set_other_than_the_first | How do I build a classification model from a class set other than the first?]]
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| [[faq_choose_between_different_cross_validation_leave_out_options | How do I choose between the different cross-validation leave-out options?]]
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| [[faq_reference_Eigenvector| How do I cite/reference Eigenvector?]]
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| [[faq_interpret_ROC_curves_and_Sensitivity_Specificity_plots_from_PLSDA | How do I interpret the ROC curves and Sensitivity / Specificity plots from PLSDA?]]
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| [[faq_make_DataSet_backwards_compatible | How do I make a DataSet backwards compatible?]]
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| [[faq_obtain_or_use_recompilation_license_for_PLS_Toolbox | How do I obtain or use a recompilation license for PLS_Toolbox?]]
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| [[faq_use_custon_cross_validation_option | How do I use the "custom" cross-validation option?]]
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| [[faq_out_of_memory_error_when_analyzing_data | I keep getting "out of memory" errors when analyzing my data. What can I do?]]
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| [[faq_java_lang_OutOfMemoryError| What can I do if I get a java.lang.OutOfMemoryError error?]] | |
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| [[faq_why_get_negative_scores_when_all_modes_are_set_to_nonnegativity | Nonnegativity (PARAFAC, PARAFAC2, Tucker): Why do I get negative scores when all modes are set to nonnegativity?]]
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| [[faq_what_are_relative_contributions | What are "Relative Contributions"?]]
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| [[faq_what_are_reduced_T^2_and_Q_Statistics | What are the "Reduced" T^2 and Q Statistics?]]
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| [[faq_units_for_RMSEC_and_RMSECV_for_PLSDA | What are the units used for RMSEC and RMSECV when cross-validating PLSDA models? Why do the cross-validation curves look strange for PLSDA?]]
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| [[faq_what_do_the_four_Fit_/_Unique_Fit_stats_mean_in_MCR_PARAFAC | What do the four Fit/Unique Fit statistics mean in MCR and PARAFAC models?]]
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| [[faq_internal_tests_used_to_select_suggested_number_of_PCs | What internal tests are used to select "suggested" number of PCs?]]
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| [[faq_what_is_PLS1_v_PLS2_and_how_to_create_separate_PLS1_models_from_multi_column_y_block | What is PLS1 vs PLS2 and how do I create separate PLS1 models when I have a multi-column y-block?]]
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| ==Command Line==
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| ==Manual==
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| ==GUI==
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| ==Installation==
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| [[Category:FAQ]] | |