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Bug 1129 - implement firls filter and change default order of fir1 to 200

Reported 2011-11-09 10:59:00 +0100
Modified 2011-12-15 09:23:49 +0100
Product: FieldTrip
Component: core
Version: unspecified
Hardware: PC
Operating System: Windows
Importance: P1 normal
Assigned to: Johanna
Depends on:
See also:

Johanna - 2011-11-09 10:59:49 +0100

I realise firls may need stats toolbox, but may be worth it to include if user has this toolbox and wants this option? also, fir1 (included) has default order 25, but higher order (bijvoorbeeld 200) is better if enough data points. suggest to increase default order.

Johanna - 2011-11-09 12:09:18 +0100

Created attachment 182 screenshot filter results

Johanna - 2011-11-09 12:31:43 +0100

Created attachment 183 code to generate figures in first attachment screenshot.

Johanna - 2011-11-09 12:36:23 +0100

Created attachment 184 instead, using 2-6hz frequency rather than 15-25hz

Johanna - 2011-11-14 12:43:24 +0100

default filter order for 'fir' (fir1) changed to depend on data (size and Fs) plus filter request. Butterworth unchanged. Default filter order is now set in low-level function (depending on filter type), rather than in preproc.

Johanna - 2011-11-14 14:35:19 +0100

'firls' added for bp, hp, lp. NM doesn't use it for bandstop, so not sure at the moment how to add that.

Johanna - 2011-11-15 11:25:32 +0100

bandstop added now too.