Changes in version 4.9 (2024-03-06) o Release date: 2024-03-06. o Minor bug fixes: R (>= 4.0.0). Changes in version 4.8 (2020-11-08) o Release date: 2020-11-08. o Minor bug fixes: R (>= 3.6.0). Changes in version 4.7 (2020-09-22) o Release date: 2020-09-22. o Minor bug fixes: R (>= 3.6.0). Changes in version 4.6 (2020-05-04) o Release date: 2020-05-05. o Add a new argument "corr" for MEM.sde(), snssdekd() and bridgesdekd() functions, where k=2,3. That is to say; the correlation structure of Wiener processes is represented by the correlation matrix. o Manual update. Changes in version 4.5 (2020-03-29) o Release date: 2020-03-29. o Minor bug fixes: R (>= 3.5.0). Changes in version 4.4 (2019-05-27) o Release date: 2019-05-27. o Minor bug fixes: R (>= 3.5.0). Changes in version 4.3 (2018-11-28) o Release date: 2018-11-28. o Manual update. o Minor bug fixes: R (>= 3.5.0). Changes in version 4.2 (2018-10-17) o Release date: 2018-10-17. o Manual update. o Minor bug fixes: R (>= 3.5.0). Changes in version 4.1 (2018-09-10) o Release date: 2018-09-10. o Addition a new function TEX.sde(): converting Sim.DiffProc objects to LaTeX. o Many help-file improvements. o Manual update. Changes in version 4.0 (2017-11-28) o Release date: 2017-11-28. o Manual update. o Minor bug fixes: R (>= 3.4.0). Changes in version 3.8 (2017-09-16) o Release date: 2017-09-16. o Addition a new function MCM.sde(): Parallel Monte-Carlo of a statistic applied to SDE's. o Addition a new function MEM.sde(): Moment equations Methods for SDE's. o Modified functions: fptsde1d(), fptsde2d() and fptsde3d(), for simulation and approximation the density of first-passage-time. o Modified summary() function for bridgesde1d(), bridgesde2d() and bridgesde3d() classes. o Many help-file improvements. o Manual update. o Minor bug fixes: R (>= 3.4.0). Changes in version 3.7 (2017-03-25) o Release date: 2017-03-25. o Addition a new argument in dsde3d(), for approximation transition density in 3-dim. o Minor bug fixes: R (>= 3.3.3). Changes in version 3.6 (2016-11-13) o Release date: 2016-11-13. o Minor bug fixes: R (>= 3.3.3). Changes in version 3.5 (2016-11-11) o Release date: 2016-11-10. o Addition a new functions dsdekd(), where k=1,2 and 3-dim, for approximation the transition density. o Addition a new functions dfptsdekd(), where k=1,2 and 3-dim, for approximation the density of first-passage-time. o Addition a new functions fptsdekd(), where k=1,2 and 3-dim, for random generation of first-passage-time. o Other minor bug fixes: R (>= 3.3.1). Changes in version 3.4 (2016-10-08) o Release date: 2016-10-08. o Modified functions rsdekd(), where k=1,2 and 3-dim. o Modified functions fptsdekd(), where k=1,2 and 3-dim. o Other minor bug fixes: R (>= 3.3.1). Changes in version 3.3 (2016-09-22) o Release date: 2016-09-21. o Modified summary() function for snssdekd(), where k=1,2 and 3-dim classes. o Fixed some bugs in "Sim.DiffProc.c" o Other minor bug fixes: R (>= 3.3.0). Changes in version 3.2 (2016-02-09) o Release date: 2016-02-09. o Other minor bug fixes: R (>= 3.2.3). Changes in version 3.1 (2015-12-31) o Release date: 2015-12-31. o Other minor bug fixes: R (>= 3.2.3). Changes in version 3.0 (2015-10-30) o Release date: 2015-10-30. o Other minor bug fixes: R (>= 3.2.1). Changes in version 2.9 (2014-09-10) o Release date: 2014-09-10. o Addition a new argument in bridgesdekd() class, where k=1,2 and 3-dim, possibility of simulating flow paths. o Other minor bug fixes: R (>= 3.0.0). Changes in version 2.8 (2014-08-19) o Release date: 2014-08-18. o Numerical methods are reprogrammed with C language 'Quick execution time'. o Addition a new argument in snssde2d() and snssde3d(), possibility of simulating flow paths. o Addition a new argument in fptsdekd(), where k=1,2 and 3-dim, first-passage-time with time-dependent boundary. o Possibility of displays for fptsde2d(), fptsde3d(), rsde2d() and rsde3d() functions. o Many help-file improvements. o Manual update. o Other minor bug fixes: R (>= 3.0.0). Changes in version 2.7 (2014-07-13) o Release date: 2014-07-13. o Other minor bug fixes: R (>= 3.0.0). Changes in version 2.6 (2014-05-04) o Release date: 2014-05-04. o Addition a new type of SDE "Stratonovich" in snssdekd(), where k=1,2 and 3-dim functions. o Addition a new numerice methods "Runge-Kutta Order 1 and 2" add in snssdekd(), where k=1,2 and 3-dim functions. o Addition a new function st.int(). o Addition a new function fitsde(). o Addition a new function fptsdekd(), where k=1,2 and 3-dim. o Addition a new function rsdekd(), where k=1,2 and 3-dim. o Manual update. o Many help-file improvements. o Other minor bug fixes: R (>= 2.15.1). Changes in version 2.5 (2012-06-09) o Release date: 2012-06-09. o Other minor bug fixes: R (>= 2.15.1). Changes in version 2.2 (2012-02-13) o Release date: 2012-02-13. o Rename the default in "read.xlsx", createSheet and removeSheet to sheetName="Sheet1" from "Sheet 1". This makes it consistent with Excel 2007 and 2010 names of an empty workbook. Changes in version 2.1 (2011-11-18) o Release date: 2011-11-18. o A new function Appdcon() approximated the evolution conditional law of diffusion process by Euler method, Kessler s'methods and Shoji-Ozaki methods. Changes in version 2.0 (2011-02-13) o Release date: 2011-02-13. o Other minor bug fixes: R (>= 2.15.1). Changes in version 1.0 (2011-01-04) o Release date: 2011-01-04. o Version 1.0 released.