The Project has been funded by CREST yuimaGUI: a Graphical User Interface for the yuima package • Cutting-edge analysis in a few simple clicks Emanuele Guidotti on behalf of the YUIMA Project Team Y oshida U chida I acus M asuda A nd others Experts working in mathematical statistics and finance, who actively publish results in the field and aim at bridging the gap between theory and practice by implementing a complete environment for the inference and simulation of Stochastic Differential Equations What is a yuima object? What can you do with a yuima object? R example… yuima <- setYuima( data = setData(FB$FB.Close, delta = 1/252), model = setModel(drift="mu*x", diffusion="sigma*x")) R example… yuima <- setYuima( data = setData(FB$FB.Close, delta = 1/252), model = setModel(drift="mu*x", diffusion="sigma*x")) qmle(yuima, start = list(mu = 0, sigma = 0.1)) Quasi-Maximum likelihood estimation qmle(yuima = yuima, start = list(mu = 0, sigma = 0.1)) Coefficients: Estimate sigma 0.3895313 mu 0.3500000 -2 log L: 4670.919 Std. Error 0.007811695 0.175039184 R example… yuima <- setYuima( data = setData(FB$FB.Close, delta = 1/252), model = setModel(drift="mu*x", diffusion="sigma*x")) qmle(yuima, start = list(mu = 0, sigma = 0.1)) simulate(yuima@model, true.parameter = list(mu = 0.35, sigma = 0.3895313), sampling = setSampling(delta = 1/252, n = 252), xinit = last(FB$FB.Close)) yuima breakthrough do things much more easily than before do things much faster than before do things you couldn’t do before yuimaGUI not just an interface Running yuima function from a Graphical User Interface Improving User experience and getting straight to the point yuimaGUI still lacks some features but … Thank you for your help (and amazing package)! PhD student modelling electricity prices, mostly renewable energy Deep scientific knowledge yuima R package yuimaGUI User-friendly level Research level Programming level yuimaGUI ........ ....... DATA INFORMATION ...... ...... ...... yuima expert user INSIGHT Yuima Koji (Vimalakirti Nirdesa) Yuima’s teaching is about seeing through the trappings of theoretical issues to the spiritual heart of the wonder of reality
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