In [1]:

    

%load_ext rpy2.ipython


    

In [2]:

    

%matplotlib inline


    

In [3]:

    

%%R
library(lattice)
attach(mtcars)

# scatterplot matrix
splom(mtcars[c(1,3,4,5,6)], main="MTCARS Data")


    

In [4]:

    

%load_ext oct2py.ipython


    

In [5]:

    

%%octave

A = reshape(1:4,2,2);
b = [36; 88];
A\b
[L,U,P] = lu(A)
[Q,R] = qr(A)
[V,D] = eig(A)


    

    






ans =

   60
   -8

L =

   1.00000   0.00000
   0.50000   1.00000

U =

   2   4
   0   1

P =

Permutation Matrix

   0   1
   1   0

Q =

  -0.44721  -0.89443
  -0.89443   0.44721

R =

  -2.23607  -4.91935
   0.00000  -0.89443

V =

  -0.90938  -0.56577
   0.41597  -0.82456

D =

Diagonal Matrix

  -0.37228         0
         0   5.37228

In [8]:

    

%%octave

xgv = -1.5:0.1:1.5;
ygv = -3:0.1:3;
[X,Y] = ndgrid(xgv,ygv);
V = exp(-(X.^2 + Y.^2));
surf(X,Y,V)
title('Gridded Data Set', 'fontweight','b');


    

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