Hi,

An AFNI 3d volume of brain data appears correct when viewed in the AFNI window.
But 3dcalc with the volume as input states that every voxel contains a bad float.
And float_scan on the volume reports that every voxel contains an infinite value.
The same tests using an older (2007) version of AFNI did not detect any bad floats.
What could be the reasons?

Here are the errors:
float_scan dataset+orig.BRIK
+++ Found 360448 Infinite values in dataset+orig.BRIK
3dcalc -prefix dataset_3dcalc_a -a dataset+orig -expr "a"
++ 3dcalc: AFNI version=AFNI_2008_07_18_1710 (Jul 9 2009) [32-bit]
++ Authored by: A cast of thousands
*+ WARNING: If you are performing spatial transformations on an oblique dset,
such as ./dataset+orig.BRIK,
or viewing/combining it with volumes of differing obliquity,
you should consider running:
3dWarp -deoblique
on this and other oblique datasets in the same session.
See 3dWarp -help for details.
++ Oblique dataset:./dataset+orig.BRIK is 27.210194 degrees from plumb.
*+ WARNING: 360448 bad floats replaced by 0 in sub-brick 0

++ Output dataset ./dataset_3dcalc_a+orig.BRIK


Here is the info on the brain volume
3dinfo dataset
++ 3dinfo: AFNI version=AFNI_2008_07_18_1710 (Jul 9 2009) [32-bit]
*+ WARNING: If you are performing spatial transformations on an oblique dset,
such as ./dataset+orig.BRIK,
or viewing/combining it with volumes of differing obliquity,
you should consider running:
3dWarp -deoblique
on this and other oblique datasets in the same session.
See 3dWarp -help for details.
++ Oblique dataset:./dataset+orig.BRIK is 27.210194 degrees from plumb.

Dataset File: dataset+orig
Identifier Code: XYZ_euu1jADSktkczus4lKI9vQ Creation Date: Thu Jul 9 10:03:47 2009
Dataset Type: Intensity (-fim)
Byte Order: LSB_FIRST [this CPU native = LSB_FIRST]
Storage Mode: BRIK file
Storage Space: 1441792 (1.4 million) bytes
Geometry String: "MATRIX(1.7188,0,0,-106.214,0,0.785932,1.77867,-35.0446,0,-1.528589,0.914512,114.972):128,128,22"
Data Axes Tilt: Oblique (27.210 deg. from plumb)
Data Axes Approximate Orientation:
first (x) = Right-to-Left
second (y) = Superior-to-Inferior
third (z) = Anterior-to-Posterior [-orient RSA]
R-to-L extent: -106.214 [R] -to- 112.074 [L] -step- 1.719 mm [128 voxels]
A-to-P extent: -35.045 [A] -to- 2.306 [P] -step- 1.779 mm [ 22 voxels]
I-to-S extent: -103.316 -to- 114.972 [S] -step- 1.719 mm [128 voxels]
Number of values stored at each pixel = 1
-- At sub-brick #0 '#0' datum type is float: 0 to 1


Thank you,
Kathleen