Data Analysis And Visualization With MATLAB

Data Analysis and Visualization withMATLABAdam FilionApplication Engineer 2013 The MathWorks, Inc.1

Agenda Data Analysis with MATLAB Demo: Solar Radiation Estimation––––– Introduction to MATLAB environmentBuilding analysis routinesCreating documentationAutomating analysis for multiple filesBuilding graphical applicationsSummary2

Data Analysis TasksAccessExplore & DiscoverFilesData Analysis& ModelingSoftwareAlgorithmDevelopmentShareReporting andDocumentationOutputs for DesignCode & ntAutomate3

Demo:Solar Radiation Estimation Goal:– Estimate daily mean global solar radiationgiven low cost and easily obtained measurements Approach:–––––Process historical measurementsDevelop and test predictive modelDocument analysis in a reportLink analysis to Excel workbookExtend analysis on multiple files4

Modeling Global Solar Radiation𝑅𝑠 𝑎 (1 𝑏𝐻)(1 𝑒 𝑐 𝑇 𝑛Rs: Solar Ratio (global solar radiation/ extraterrestrial solar radiation)H: Relative humidity 𝑇: TDailyMax – TDailyMina,b,c,n: Model coefficients Value of extraterrestrial solarradiation is calculated for agiven day-of-year (ordinal date)and latitude using a known formula)extraterrestrialradiationtotal globalradiationDaily temperature variations are largelydriven by solar radiation received at the surface5

Demo: Estimate Electricity UsageAccessExplore & DiscoverFilesData Analysis& ModelingSoftwareAlgorithmDevelopmentProducts Used MATLABStatistics ToolboxCurve Fitting ToolboxMATLAB Compiler & Builder EXShareReporting andDocumentationOutputs for DesignCode & ntAutomate6

Accessing Data from MATLABAccess Explore & DiscoverShareFiles– Excel, text, or binary– Multimedia, scientific– Web, XML Applications and languages– C/C , Java, FORTRAN– COM, .NET, shared libraries– Databases Measurement hardware– Data acquisition hardware forsignals or images– Stand-alone instruments and devices7

Data Analysis and Visualization in MATLABAccess Explore & DiscoverShareData analysis– Manipulate, preprocess, andmanage data– Fast, accurate analysis with pre-builtmath and engineering functions Visualization– Built in graphics functions forengineering and science(2D, 3D, VolViz)– Interactive tools to annotate andcustomize graphics8

Expanding the Capabilities of MATLABAccess Explore & DiscoverShareMathWorks add-on tools for:– Statistics and curve fitting– Signal and image processing– System identification andcontrol system analysis– Neural networks and fuzzy logic– Optimization– Model-based calibration and more Partner products for:– Additional interfaces– Domain-specific analysis– Niche applications9

Sharing Results from MATLABAccess Explore & DiscoverShareAutomatically generatestructured reports– Published MATLAB files– MATLAB Report Generator Feed your results intodownstream design tools Deploy applications toother environments10

Deploying Applications with MATLABAccess Explore & DiscoverShareGive MATLAB codeto other usersMATLAB Compiler MATLABBuilder EXShare applicationswith end users whodo not need MATLAB– Stand-aloneexecutables– Shared libraries– Software components.exe.dll.libExcelMATLABBuilder JAJavaMATLABBuilder NEWeb.NET11

Deploying Applications with B Compiler2.exe12

Agenda Data Analysis with MATLAB Demo: Solar Radiation Estimation––––– Introduction to MATLAB environmentBuilding analysis routinesCreating documentationAutomating analysis for multiple filesBuilding graphical applicationsSummary13

Benefits of Using MATLAB Thousands of engineering, science, and math functions Extensive plotting capabilities Automation of custom analysis routines Integration with Excel and other environments14

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Data Analysis and Visualization in MATLAB Data analysis –Manipulate, preprocess, and manage data –Fast, accurate analysis with pre-built math and engineering functions Visualization –Built in graphics functions for engineering and science (2D, 3D, VolViz) –Interactive tools to annotate and customize graphics