MIA Toolbox PCA Quick Start and Evri faq: Difference between pages

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[[Loading Data Quick Start | Previous Topic: Loading Data]]
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==Importing / Exporting==
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[[Image:LoadExportSMBread.png |right |(Click to Enlarge)]]
This example uses the '''smbread''' dataset. Load '''smbread''' by clicking on '''Load Demo Data''' in the tree, then '''Swedish Knackerbrod'''. This will load the data into Image Manager. Click on the item in the Loaded Images section to view it and make it the current selected image. Next, click on the export to Analysis button. This will open the Analysis GUI and load '''smbread'''.
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[[Image:RecalcBreadImage4PCs.png |right| 500px |(Click to Enlarge)]]
The Analysis interface will open with '''smbread''' loaded. Next, select '''PCA''' from the '''Analysis''' menu and then click the '''Model''' icon in the Status Pane. By default a model with one PC will be calculated. Try '''4 PCs''' by selecting row 4 and clicking the '''Model''' icon again.


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[[faq_concatenate_multiple_files|How do I concatenate multiple files into a single DataSet?]]
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[[Image:build_model.004.png |right| 500px |(Click to Enlarge)]]
The Analysis GUI will then appear with the given data already loaded. (The large '''X''' (block) button in the Analysis GUI will appear depressed indicating the data is loaded - passing the cursor over the button will provide a summary of the '''X''' block data.)
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[[Image:build_model.005.png |right| 500px |(Click to Enlarge)]]
While each analysis type has its own nuances, in general the steps to build a model are:


# load the data
[[faq_create_multivariate_image_from_separate_images|How do I create a multivariate image from separate images?]]
# view the data
# choose preprocessing
# select the type of cross-validation to use (if any is desired - see [[Using Cross-Validation]])
# build the model
# review the model


There is more than one way to accomplish each of the above steps.  For example, preprocessing can be set for the '''X''' block by
[[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)?]]
* clicking the '''"Choose Preprocessing"''' button in the Analysis Flowchart
* clicking the '''P''' button next to the '''X''' button
* select '''"Preprocess"''' menu item


('''Hint:''' Once selected, use the Preprocess/X-block and Preprocess/Y-block menus to save the current preprocessing as the default.)
[[faq_import_three-way_data|How do I import three-way data into Solo or PLS_Toolbox?]]


You can quickly view your data by right-clicking on the appropriate button ('''X''' or '''Y''') and then select '''"Plot Data"'''
[[faq_import_horiba_NGC_64bit |Why can't I import a Horiba NGC file on my 64-bit computer?]]


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[[faq_SPCREADR_cant_read_multiple_files |Why can't SPCREADR read multiple files I've selected?]]
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[[Image:build_model.006.png|right|  |(Click to Enlarge)]]
Perhaps the quickest way for new users to complete the remaining steps to build the model is to use the flowchart.


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[[faq_some_EXCEL_files_fail_to_import |Why do some Excel files fail to import?]]
[[Review Results Quick Start | Next Topic: Review Results]]
 
==General==
 
[[faq_PARALIND_in_PLS_Toolbox |Can I do PARALIND in PLS_Toolbox?]]
 
[[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?]]
 
[[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?]]
 
[[faq_more_info_on_R_Squared_statistic | Can you give me more information on the R-Squared statistic?]]
 
[[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?]]
 
[[ 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?]]
 
[[ faq_does_software_stop_working_if_maintenance_expires | Does the software stop working if my maintenance expires?]]
 
==Command Line==
==Manual==
==GUI==
==Installation==
 
 
 
 
 
 
 
[[Category:FAQ]]

Revision as of 08:21, 21 November 2018