Learning Machine Learning
I’ve joined ViSenze for almost half a year, and our CTO said we (me and Terry) should learn some machine learning knowledge, since there are a lot of Phd here in our company:). He recommended a course on Coursera -
Neural Networks for Machine Learning.
I am facing the Quiz of Week 3, while it needs some coding works in Octave.
The Macbook, which lays in my home, hasn’t been used for quite a time. When I use
brew to install Octave, some weird issue happened:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Error: uninitialized constant Formulary::FormulaNamespacefe4ce29a01455f41d6d0b08c39f76615::Octave::DevelopmentTools Please report this bug: https://git.io/brew-troubleshooting /usr/ local/Library/Taps/homebrew/homebrew-science/octave.rb: 31: in `<class:Octave> ' /usr/local/Library/Taps/homebrew/homebrew-science/octave.rb:1:in `load_formula' /usr/ local/Library/Homebrew/formulary.rb: 21: in `module_ eval ' /usr/local/Library/Homebrew/formulary.rb:21:in `load_formula' /usr/ local/Library/Homebrew/formulary.rb: 38: in `load_formula_from_path ' /usr/local/Library/Homebrew/formulary.rb:87:in `load_file' /usr/ local/Library/Homebrew/formulary.rb: 78: in `klass ' /usr/local/Library/Homebrew/formulary.rb:74:in `get_formula' /usr/ local/Library/Homebrew/formulary.rb: 171: in `get_formula ' /usr/local/Library/Homebrew/formulary.rb:211:in `factory' /usr/ local/Library/Homebrew/extend/ARGV.rb: 18: in `block in formulae ' /usr/local/Library/Homebrew/extend/ARGV.rb:16:in `map' /usr/ local/Library/Homebrew/extend/ARGV.rb: 16: in `formulae ' /usr/local/Library/Homebrew/cmd/install.rb:95:in `install' /usr/ local/Library/brew.rb: 87: in `<main> ' Solution
I found there is guide on Octave
Wiki. Let me summarize it:
1 2 3 4 sudo chown -R $(whoami) /usr/ local brew update && brew upgrade brew cask install xquartz brew install octave After brew install octave
When I typed ‘octave’ in my terminal, there is an issue like:
1 2 3 4 5 $octave dyld: Library not loaded: /usr/ local/opt/suite-sparse/lib/libsuitesparseconfig. 4.5. 4.dylib Referenced from: /usr/ local/bin/octave Reason: image not found Abort trap: 6
And actually I’ve already installed
suite-sparse, version 4.5.5. You need to create a soft link:
1 2 cd /usr/ local/opt/suite-sparse/lib/ ln -s libsuitesparseconfig. 4.5. 5.dylib libsuitesparseconfig. 4.5. 4.dylib Create your application
It is easier if we can launch octave in our Application, not in terminal. We can use
Script Editor in macOS:
1 tell application "Terminal"
do script "`which octave`; exit"
end tell Screenshot