search for: pi_

...r signal corresponds physically to a concentration and for ease of interpretation having $t_{fast} < t_{slow}$ would not hurt. We could then reparametrize our problem with: $A = \exp (\alpha)$ $t_{fast} = \exp (\tau_{fast})$ $t_{slow} = t_{fast} + \exp (\tau_{slow})$ $p_{fast} = 0.5 + 0.5 \frac{\pi_{fast}}{\sqrt{1+\pi_{fast}^2}}$ $p_{slow} = 1 - p_{fast}$ and the four parameters: $\alpha, \tau_{fast}, \tau_{slow}, \pi_{fast}$ would be unconstrained. One could then think of allowing "optim" users to specify more general boundaries ("lower", "upper") which would be...

...39;* installing *source* package 'MyPi' ...** libs gfortran -m64 -shared -s -static-libgcc -o MyPi.dll tmp.def Fpi.o -Ld:/RCompile/r-compiling/local/local320/lib/x64 -Ld:/RCompile/r-compiling/local/local320/lib -LC:/Users/IMARTI~1/DOCUME~1/R/R-32~1.1/bin/x64 -lR Fpi.o: In function `__fortranpi_MOD_dboard': Fpi.f90:(.text+0xd7): undefined reference to `__stack_chk_fail' Fpi.o: In function `pi_': Fpi.f90:(.text+0x249): undefined reference to `__stack_chk_fail' collect2: ld returned 1 exit status no DLL was created ERROR: compilation failed for package 'MyPi'* removin...

...ch one I can use... When editing the title in R plots, such as using 'plot', or 'xyplot' in 'lattic', what method do you use to write greek letters and make use of superscript and subscript, e.g. to write mathematical expressions like using Latex: \sigma^2 \tau^{2s} \mu_i \pi_{2s} Also I would like to learn how to make two lines in the main title or sub title if the text I need it too long for putting in a single line, e.g. are there some R code/syntax allowing me to do something like in Latex to make two lines in the title, for example using '//' or '\\'...

...package 'MyPi' ...** libs > gfortran -m64 -shared -s -static-libgcc -o MyPi.dll tmp.def Fpi.o > -Ld:/RCompile/r-compiling/local/local320/lib/x64 > -Ld:/RCompile/r-compiling/local/local320/lib > -LC:/Users/IMARTI~1/DOCUME~1/R/R-32~1.1/bin/x64 -lR > Fpi.o: In function `__fortranpi_MOD_dboard': > Fpi.f90:(.text+0xd7): undefined reference to `__stack_chk_fail' > Fpi.o: In function `pi_': > Fpi.f90:(.text+0x249): undefined reference to `__stack_chk_fail' > collect2: ld returned 1 exit status > no DLL was created > ERROR: compilation failed for p...

Hello list, Is there any mean to fit models for ordinal response other than multinomial polytomous ("multinom" from nnet ) and cumulative logit ("polr" from MASS)? I am particularly interested in continuation-ratio model and adjacent-category logit model. It is for the sake of epidemiology in wild-living populations! Many thanks, Emmanuelle Fromont

I am using 32-bit R 3.1.2 on Windows 7. I recently conducted an `R CMD check --as-cran` on a recently-developed package and received only the 'New submission' note. Research on StackOverflow and on R-devel suggested this could be ignored. I also used devtools::build_win() and received no notes or warnings, other than the one mentioned previously. Lastly, I conducted an `R CMD check` with

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...tor). 2) Iterator updates This part is actually pretty large: 2a) sanity checks - potential add/mul overflows are detected - partition related checks handled by notsane_{primary,logical,extended,gpt}() family of functions. They can be easily extended in the future. - additional checks in main pi_{gpt,dos}_next() functions and subfunctions 2b) EBR+MBR iterator merge They function now simply as 'dos' iterator (to keep naming consistent with disklib). Code is split into smaller functions, everything should look pretty logical. 2c) GPT iterator Core remained similar to previous vers...

Is there a way to estimate a nominal response model? To be more specific let's say I want to calibrate: \pi_{v}(\theta_j)=\frac{e^{\xi_{v}+\lambda_{v}\theta_j}}{\sum_{h=1}^m e^{\xi_{h}+\lambda_{h}\theta_j}} Where $\theta_j$ is a the dependent variable and I need to estimate $\xi_{h}$ and $\lambda_{h}$ for $h \in {1...,m}$. Thank you, Mauricio Romero Quantil S.A.S. Cel: 3112231150 www.quantil.com.co...