610 reputation
214
bio website bsl-support.de
location Germany
age
visits member for 2 years, 6 months
seen 8 hours ago

Jul
2
awarded  Curious
Mar
18
awarded  Yearling
Dec
22
comment Using a different version of R with RLink on Windows 7
@Szabolcs That works fine as I just tested following your post. I seems to be an issue with releases 3.x.x of R as this thread indicates maybe: RLink and R v3.0.1?
Dec
22
comment RLink and R v3.0.1?
I have just installed R Version 3.0.2 and then tried to Install that version using InstallR["RHomeLocation" -> "C:\\Program Files\\R"] only to get the following error message: InstallR::nopaclet: Could not find RLink runtime installed. Please use RLinkResourcesInstall to install it>>. Is that (still) the same issue?
Dec
22
comment Using a different version of R with RLink on Windows 7
Unfortunately for some reason that solution does not work on my machine with Windows 7. I had just installed R from a mirror site and given the proposed InstallR["RHomeLocation" -> "C:\\Program Files\\R"] only to receive the follwing error message: InstallR::nopaclet: Could not find RLink runtime installed. Please use RLinkResourcesInstall to install it. How can that be?
Dec
20
awarded  Informed
Dec
19
comment Keep data in memory inside a notebook without having to evaluate it again
You might take a look at the option SaveDefinitions->True with Manipulate or at DynamicModule as these should address your problem.
Dec
18
awarded  Popular Question
Nov
25
accepted How can multiple null terminated strings be handled in a DLL-function result?
Nov
25
comment How can multiple null terminated strings be handled in a DLL-function result?
Thanks a lot, Todd, that pretty much looks like THE answer to the problem. For completeness I will also point out a solution using the DLL function "vensim_get_substring" which Ventana posted on the Vensim Forum: vensim.com/documentation/index.html?26210.htm
Nov
22
asked How can multiple null terminated strings be handled in a DLL-function result?
May
31
awarded  Critic
May
29
comment NDSolve: methods and step size choosing
@Albert: Certainly not. But how many people will have read through the books by Hairer et al. - of which I spot at least three? ;-)
May
29
comment NDSolve: methods and step size choosing
Have you had a look at the complete tutorial Advanced Numerical Differential Equation Solving in Mathematica? I believe your questions are being answered there albeit it may take some reading time.
May
27
comment Inverting a Spline-Function (Bezier or BSpline)
For completeness: Surprisingly using InverseFunction with an InterpolatedFunction turns out to be slower than the indicated FindRoot- solution. But since there should be some symmetry here, I simply switched the $(x,y)$ pairs for the reference points to be $(y,x)$ pairs before letting Interpolation with Order 2 and Spline-Method find a solution. Using the thus obtained InterpolationFunction is as fast as can be wished for.
May
27
accepted Inverting a Spline-Function (Bezier or BSpline)
May
24
comment Inverting a Spline-Function (Bezier or BSpline)
I just tested the FindRoot-Solution vs. using InverseFunctionon an interpolated Function as suggested in the solution on 10000 random values. It surprised me quite a bit to find the FindRoot-solution turning out faster (4.7 secs vs. 6.9 secs).
May
24
revised How can i get the solution of complicated equation?
Added the code-wrapper.
May
24
comment How can i get the solution of complicated equation?
Justed added the code using OCR.
May
24
suggested suggested edit on How can i get the solution of complicated equation?