Top "Octave" questions

GNU Octave is a free and open-source mathematical software package and scripting language.

Principal Component Analysis in MATLAB

I'm implementing PCA using eigenvalue decomposition for sparse data. I know matlab has PCA implemented, but it helps me understand …

matlab machine-learning computer-vision octave pca
Eigenvalues in octave with eig()

Consider the real, symmetric matrix S = (2, 1; 1, 2) From the characteristic equation |S - λ I|, we have the quadratic (2-λ)^2 - 1 = 0, whose …

octave eigenvector eigenvalue
summation series using octave

Is it possible to do a summation series in Octave? In matlab there is symsum function for it, however I …

matlab octave
Plotting with Octave after most recent MAC OSX update

Hi I just recently downloaded the most recent snow leopard update. Then I tried to plot something using Octave which …

macos octave gnuplot
How to find subscripts of matching element(s) in matlab/octave

Given a value in a matrix how can you get the subscript(s) at which the value occurs in the …

matlab matrix octave
Octave - How to install packages on Windows

Question Due to the issue in Fix for Octave urlread causing Peer certificate cannot be authenticated with given CA certificates, …

octave install.packages
GNU Octave method to operate on each item in a matrix. octave "arrayfun(...)" example

In GNU Octave version 3.4.3, I am having trouble applying a custom function to operate on each item/element in a …

linux function octave
Element wise multiplication of a matrix and a vector?

Is there an in-built function in octave to multiply each column of a m X n element-wise with a column …

vector matrix octave
Octave time series Moving average

I have a matrix with each column represents a feature over time. I need to find the moving average of …

matlab signal-processing time-series octave financial
Is the Julia language really as fast as it claims?

Following this post I decided to benchmark Julia against GNU Octave and the results were inconsistent with the speed-ups illustrated …

benchmarking octave julia