RE: "missing operator at _@_ in expression" for if statement

From: Norman Geist (norman.geist_at_uni-greifswald.de)
Date: Tue Jul 28 2015 - 01:33:01 CDT

You might want to follow a TCL tutorial 1st.

 

if {$i == 0} {

set ref_sel [ $sel_prot ]

} else {

            set M [measure fit $sel_prot $ref_sel]

            $sel_prot move $M

}

 

 

Mit freundlichen Grüßen

 

Norman Geist.

 

From: owner-namd-l_at_ks.uiuc.edu [mailto:owner-namd-l_at_ks.uiuc.edu] On Behalf Of Simon Kit Sang Chu
Sent: Tuesday, July 28, 2015 2:40 AM
To: namd-l_at_ks.uiuc.edu
Subject: namd-l: "missing operator at _@_ in expression" for if statement

 

Hi everyone,

 

I am a new user and I am writing a script -

 

if [expr $i == 0]{

            set ref_sel [ $sel_prot ]

} else {

            set M [measure fit $sel_prot $ref_sel]

            $sel_prot move $M

}

 

However, there is an error message -

missing operator at _@_

in expression "1_@_{"

 

Anyone has experienced this before? Mind if you point out how to correct it?

 

Thanks,

Simon

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