added datastructure folder

10 files changed, 517 insertions, 0 deletions

diff --git a/datastructure/scilab/call.sci b/datastructure/scilab/call.sci
new file mode 100644
index 0000000..e902744
--- /dev/null
+++ b/datastructure/scilab/call.sci
@@ -0,0 +1,6 @@
+  u = idinput(1024,'PRBS',[0 1/20],[-1 1])

+  a = [1 0.5];b = [0 2 3];

+  model = idpoly(a,b,'Ts',0.1)

+  y = sim(u,model) + rand(length(u),1)

+  plantData = iddata(y,u,0.1)

+  sys = armaX(plantData,[2,2,1])

diff --git a/datastructure/scilab/datSci.JPG b/datastructure/scilab/datSci.JPG
new file mode 100644
index 0000000..6bcffc4
--- /dev/null
+++ b/datastructure/scilab/datSci.JPG
diff --git a/datastructure/scilab/datSci1.JPG b/datastructure/scilab/datSci1.JPG
new file mode 100644
index 0000000..9da52fe
--- /dev/null
+++ b/datastructure/scilab/datSci1.JPG
diff --git a/datastructure/scilab/modSci1.JPG b/datastructure/scilab/modSci1.JPG
new file mode 100644
index 0000000..025d836
--- /dev/null
+++ b/datastructure/scilab/modSci1.JPG
diff --git a/datastructure/scilab/modSci2.JPG b/datastructure/scilab/modSci2.JPG
new file mode 100644
index 0000000..ea9582f
--- /dev/null
+++ b/datastructure/scilab/modSci2.JPG
diff --git a/datastructure/scilab/scilab_exist.aux b/datastructure/scilab/scilab_exist.aux
new file mode 100644
index 0000000..6bcb059
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diff --git a/datastructure/scilab/scilab_exist.pdf b/datastructure/scilab/scilab_exist.pdf
new file mode 100644
index 0000000..6e4c554
--- /dev/null
+++ b/datastructure/scilab/scilab_exist.pdf
diff --git a/datastructure/scilab/scilab_exist.tex b/datastructure/scilab/scilab_exist.tex
new file mode 100644
index 0000000..fb23de6
--- /dev/null
+++ b/datastructure/scilab/scilab_exist.tex
@@ -0,0 +1,145 @@
+\documentclass[a4paper,12pt]{report}

+\usepackage{graphicx}

+\usepackage{booktabs}

+\usepackage{amsmath}

+\usepackage{listings}

+	\title{Scilab Identification Toolbox - Existing features}

+\begin{document}

+	

+

+	

+\maketitle

+	\tableofcontents		

+	

+	

+\chapter{Calling Sequence}	

+	\lstinputlisting{call.sci}	

+%		\begin{figure}[tbp]

+%		\centering

+%		\includegraphics[width=0.8\textwidth]{codeSci.JPG}

+%		\caption{Calling Sequence}

+%		\label{}

+%	\end{figure}

+	

+\chapter{Model structure (idpoly)}

+	

+	\section{Model structure output}

+	\begin{enumerate}

+		\item Model representation (A,B,C polynomials in increasing power of $z^{-1}$)

+		

+	\item  Sampling time 

+	\item Performance of model - Values of Mean Squared Error(MSE), Final Prediction Error(FPE), Fit Percentage, Raw Akaike's Information Criterion(AIC), Small sample-size corrected (AICc), Normalized AIC(nAIC), Bayesian information criteria(BIC)

+	\end{enumerate}

+\section{Model structure attributes}

+\begin{enumerate}

+	\item Polynomial coefficients vector

+	\item Variable('$z^{-1}$') used in polynomials

+	\item Time unit

+	\item Smpling time

+	\item Report giving values of MSE, FPE, Fit Percentage, AIC, AICc, AICn, BIC

+\end{enumerate}

+	

+

+	

+	\begin{figure}[tbp]

+		\centering

+		\includegraphics[width=0.8\textwidth]{modSci1.JPG}

+		\caption{Model(idpoly) Output}

+		\label{}

+	\end{figure}

+	

+	\begin{figure}[tbp]

+		\centering

+		\includegraphics[width=0.8\textwidth]{modSci2.JPG}

+		\caption{Model attributes}

+		\label{}

+	\end{figure}

+	

+	\chapter{Data structure (iddata)}

+	

+	\section{Data structure output}

+	\begin{enumerate}

+		

+		\item Domain of data : Time (No provision of storing frequency domain data in iddata. Another function 'frd' can store frequency and response data)

+		\item Number of samples

+		\item Name of output data vector 

+		

+		\item Name of input data vector

+		

+		\item Sampling time

+		

+	\end{enumerate}

+	Note : No provision of changing name of output or input data vector and time unit.

+	\section{Data struture attributes}

+		

+	\begin{enumerate}

+		\item Output data vector 

+		

+		\item Input data vector

+		

+		\item Sampling time

+		

+		\item Time unit

+	\end{enumerate}

+

+	

+			\begin{figure}[tbp]

+			\centering

+			\includegraphics[width=0.8\textwidth]{datSci1.JPG}

+			\caption{Data(iddata) Output}

+			\label{}

+		\end{figure}

+	

+			\begin{figure}[tbp]

+			\centering

+			\includegraphics[width=0.8\textwidth]{datSci.JPG}

+			\caption{Data attributes}

+			\label{}

+		\end{figure}

+		

+	\chapter{Optimizer}

+	\begin{enumerate}

+		

+		\item diffcode toolbox - Automatic differentiation (consists of functions to evaluate jacobian and hessian but no associated optimizer)

+		\item Optimbase toolbox - building block for optimization methods(number of variables, minimum and maximum bounds, number of non linear inequality constraints, cost function, logging system, various termination criteria)

+		

+		\item Nonlinear Least Squares

+		\begin{enumerate}

+	     	\item lsqrsolve - Levenberg-marquardt algorithm (used in arx, armax, oe) 

+		

+		\item leastsq - Non-linear least squares problem 

+		

+		Algorithms available : quasi-Newton (default), conjugate gradient or non-differentiable

+	

+		

+		

+		

+		\item datafit - Parameter identification based on measured data

+		

+	Algorithms available : quasi-Newton (default), conjugate gradient or non-differentiable

+		

+		

+	\end{enumerate}

+	\item optim - Non-linear optimization

+		

+		Algorithms available : limited memory BFGS algorithm, quasi-Newton method, non-differentiable problems

+		

+		

+		\item karmarkar - Constrained linear optimization problem

+		

+		

+		\item neldermead - Direct search optimization algorithms based on the simplex method

+		

+	\item qpsolve - Quadratic optimization (active set)

+		

+	\item Ipopt - Interior point method

+		

+		\item conjgrad - Conjugate gradient solvers

+	\end{enumerate}

+	

+	

+	

+	

+	

+	

+\end{document}
\ No newline at end of file
diff --git a/datastructure/scilab/scilab_exist.toc b/datastructure/scilab/scilab_exist.toc
new file mode 100644
index 0000000..237a7fb
--- /dev/null
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@@ -0,0 +1,8 @@
+\contentsline {chapter}{\numberline {1}Calling Sequence}{2}
+\contentsline {chapter}{\numberline {2}Model structure (idpoly)}{3}
+\contentsline {section}{\numberline {2.1}Model structure output}{3}
+\contentsline {section}{\numberline {2.2}Model structure attributes}{3}
+\contentsline {chapter}{\numberline {3}Data structure (iddata)}{5}
+\contentsline {section}{\numberline {3.1}Data structure output}{5}
+\contentsline {section}{\numberline {3.2}Data struture attributes}{5}
+\contentsline {chapter}{\numberline {4}Optimizer}{7}