JuliaDSP / DSP.jl / 326

98%

Pull #102

travis-ci

Use new stateful filter API for filtfilt

This provides reduces the memory allocation and provides a small speed
boost (on 0.4; on 0.3, where SubArrays are slow, it's probably
substantially slower). We could conceivably use this to provide
in-place filtfilt, although that is not yet implemented.

I removed support for non-1 initial values of a in filt_stepstate,
since we don't need it if the filter is normalized before it is used.

42 of 42 new or added lines in 1 file covered. (100.0%)

881 of 904 relevant lines covered (97.46%)

16275.63 hits per line