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Dear AFNI users-

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Sincerely, AFNI HQ

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david m henkel
May 13, 2008 02:14PM
I am attempting to run the 3dcalc command in 3dttest in order to use percent change on the data using the following script.

#!/bin/tcsh -f

@ a_str = 34
@ b_str = 2

cd /mnt/stor0/bitrec/proj2/patients/

3dttest \\
-prefix P_neutral_ttest \\
-session /mnt/stor0/bitrec/proj2/groupanalysis/ \\
-base1 0 \\
-set2 \\
\"3dcalc( -a 2-0003-1/briks/2-0003-1_end12_decon+tlrc[${a_str}] -b 2-0003-1/briks/2-0003-1_end12_decon+tlrc[${b_str}] -expr (a/b)*(100) )\" \\
\"3dcalc( -a 2-0003-2/briks/2-0003-2_end12_decon+tlrc[${a_str}] -b 2-0003-2/briks/2-0003-2_end12_decon+tlrc[${b_str}] -expr (a/b)*(100) )\" \\
\"3dcalc( -a 2-0003-3/briks/2-0003-3_end12_decon+tlrc[${a_str}] -b 2-0003-3/briks/2-0003-3_end12_decon+tlrc[${b_str}] -expr (a/b)*(100) )\" \\
\"3dcalc( -a 2-0010-1/briks/2-0010-1_end12_decon+tlrc[${a_str}] -b 2-0010-1/briks/2-0010-1_end12_decon+tlrc[${b_str}] -expr (a/b)*(100) )\" \\
\"3dcalc( -a 2-0010-3/briks/2-0010-3_end12_decon+tlrc[${a_str}] -b 2-0010-3/briks/2-0010-3_end12_decon+tlrc[${b_str}] -expr (a/b)*(100) )\" \\
\"3dcalc( -a 2-0011-1/briks/2-0011-1_end12_decon+tlrc[${a_str}] -b 2-0011-1/briks/2-0011-1_end12_decon+tlrc[${b_str}] -expr (a/b)*(100) )\" \\
\"3dcalc( -a 2-0011-2/briks/2-0011-2_end12_decon+tlrc[${a_str}] -b 2-0011-2/briks/2-0011-2_end12_decon+tlrc[${b_str}] -expr (a/b)*(100) )\" \\
\"3dcalc( -a 2-0011-3/briks/2-0011-3_end12_decon+tlrc[${a_str}] -b 2-0011-3/briks/2-0011-3_end12_decon+tlrc[${b_str}] -expr (a/b)*(100) )\" \\
\"3dcalc( -a 2-0013-1/briks/2-0013-1_end12_decon+tlrc[${a_str}] -b 2-0013-1/briks/2-0013-1_end12_decon+tlrc[${b_str}] -expr (a/b)*(100) )\" \\
\"3dcalc( -a 2-0013-2/briks/2-0013-2_end12_decon+tlrc[${a_str}] -b 2-0013-2/briks/2-0013-2_end12_decon+tlrc[${b_str}] -expr (a/b)*(100) )\"

When the script is run I recieve the following output in terminal.

++ 3dttest: AFNI version=AFNI_2008_02_01_1144 (Apr 18 2008) [64-bit]
++ Expanded -set2:: \'3dcalc( -a 2-0003-1/briks/2-0003-1_end12_decon+tlrc[34]\' \'3dcalc( -a 2-0003-2/briks/2-0003-2_end12_decon+tlrc[34]\' \'3dcalc( -a 2-0003-3/briks/2-0003-3_end12_decon+tlrc[34]\' \'3dcalc( -a 2-0010-1/briks/2-0010-1_end12_decon+tlrc[34]\' \'3dcalc( -a 2-0010-3/briks/2-0010-3_end12_decon+tlrc[34]\' \'3dcalc( -a 2-0011-1/briks/2-0011-1_end12_decon+tlrc[34]\' \'3dcalc( -a 2-0011-2/briks/2-0011-2_end12_decon+tlrc[34]\' \'3dcalc( -a 2-0011-3/briks/2-0011-3_end12_decon+tlrc[34]\' \'3dcalc( -a 2-0013-1/briks/2-0013-1_end12_decon+tlrc[34]\' \'3dcalc( -a 2-0013-2/briks/2-0013-2_end12_decon+tlrc[34]\'
3dttest: t-tests of 3D datasets, by RW Cox
+++ Executing 3dcalc()
++ 3dcalc: AFNI version=AFNI_2008_02_01_1144 (Apr 18 2008) [64-bit]
++ Authored by: A cast of thousands
** FATAL ERROR: No expression given!
*** 3dcalc() failed - no dataset created
** FATAL ERROR: Unable to open dataset file 3dcalc( -a 2-0003-1/briks/2-0003-1_end12_decon+tlrc[34]

I am running Version AFNI_2008_02_01_1144 on SunOS cthulhu 5.10 Generic_118833-17 sun4u sparc SUNW,Sun-Fire-880

Thanks
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Subject Author Posted

3dcalc command in 3dttest

david m henkel May 13, 2008 02:14PM

Re: 3dcalc command in 3dttest

rick reynolds May 13, 2008 02:47PM