search

pillowlab / neuroGLM

Fitting and analysis of trial-based neural spike responses with Generalized Linear Model (GLM).
MIT License
68 stars 38 forks source link

remove constant columns from the design matrix #1

Closed memming closed 9 years ago

memming commented 9 years ago

Those columns are useless for prediction, and completely collinear, redundant with bias term.

Make sure to keep the indices, so one can reconstruct the original form.

jpillow commented 9 years ago

Hi Memming,

Sorry, I'm not sure I understand the comment -- was this a "note to self"?

-J

On Fri, Jan 23, 2015 at 2:19 PM, Il Memming Park notifications@github.com wrote:

Those columns are useless for prediction, and completely co-linear, redundant with bias term.

Make sure to keep the indices, so one can reconstruct the original form.

Reply to this email directly or view it on GitHub https://github.com/pillowlab/neuroGLM/issues/1.

memming commented 9 years ago

This is not a message to you. This is an issue tracker on github. I guess you are subscribed to receive it as email.

On Fri, Jan 23, 2015 at 2:23 PM, Jonathan Pillow notifications@github.com wrote:

Hi Memming,

Sorry, I'm not sure I understand the comment -- was this a "note to self"?

-J

On Fri, Jan 23, 2015 at 2:19 PM, Il Memming Park <notifications@github.com

wrote:

Those columns are useless for prediction, and completely co-linear, redundant with bias term.

Make sure to keep the indices, so one can reconstruct the original form.

Reply to this email directly or view it on GitHub https://github.com/pillowlab/neuroGLM/issues/1.

Reply to this email directly or view it on GitHub https://github.com/pillowlab/neuroGLM/issues/1#issuecomment-71249472.

Assistant Professor Department of Neurobiology and Behavior Stony Brook University http://memming.wordpress.com | memming@Twitter