I have a matrix that is about 11,000 x 1,000, saved as a csv. It takes forever to load.
What is the fastest (or recommended) format to save matrices in?
Share
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I have a matrix that is about 11,000 x 1,000, saved as a csv. It takes forever to load.
What is the fastest (or recommended) format to save matrices in?
Where does the data come from?
Way back when I was in graduate school, I generated simulation data and results in a C++ program. As I owned the data, I wrote a routine to write the matrix data in the binary format expected by Octave — and which point reading is pretty fast as it becomes a single
freadcall.