save_matrix

Save matrix with DataFrame & netcdf

Description

1. Make Matrix
2. Flatten to Vec<f64> and write a vector with shape information as Vec<usize>
3. Put them together into DataFrame
4. Write DataFrame with netcdf format
5. Read DataFrame from netcdf format
6. Restore Matrix with flatten vector & shape information

Build Process

# Build
cargo build --release

# Run
cargo run --release