Posted by B. Douglas Ward on March 15, 2001 at 11:55:02:
In Reply to: Re: t-test on time series data posted by Jian on March 14, 2001 at 16:05:32:
Jian:
1. I think that your understanding is correct. The Func subbrick determines
the color coding in the display, and the Thr subbrick determines which voxels
"light up". The vertical slider bar is used to adjust the threshold. If
the correlation coefficient is chosen as the Thr subbrick, then the
corresponding threshold p-value is displayed at the bottom of the slider bar.
So, if a particular voxel "lights up", you know that its p-value must be
less than the threshold p-value. If you want to know the exact p-value for
a particular voxel, you can use program cdf to convert the correlation
coefficient to the p-value (for an example, see my reply to Phoebe above).
2. Yes, you can use program 3dbucket to append the blurred subbrick to the
bucket dataset. For example:
3dbucket -glueto myBucket+orig myBlurred+orig
The blurred data will be appended as the last subbrick in myBucket.
You will still be able to use the vertical slider bar with dataset myBucket.
3. I have little experience with Tlrc conversion. Perhaps someone else could
respond to this question. As a last resort, you could always try reading the
afni documentation.
Doug Ward