Re: showtrainprogress: invalid conversion from NaN to logical

[Philip Nienhuis]

syed khalid wrote
> Adding more details from the error log
> 
> arning: /home/syedk/OCT/nnet/tests/MLP/newff.m: possible Matlab-style
> short-circuit operator at line 179, column 20
> warning: /home/syedk/OCT/nnet/tests/MLP/newff.m: possible Matlab-style
> short-circuit operator at line 195, column 34
> warning: /home/syedk/OCT/nnet/tests/MLP/newff.m: possible Matlab-style
> short-circuit operator at line 195, column 22
> warning: /home/syedk/OCT/nnet/tests/MLP/__newnetwork.m: possible
> Matlab-style short-circuit operator at line 146, column 31
> warning: /home/syedk/OCT/nnet/tests/MLP/__newnetwork.m: possible
> Matlab-style short-circuit operator at line 172, column 31
> warning: /home/syedk/OCT/nnet/tests/MLP/isposint.m: possible Matlab-style
> short-circuit operator at line 45, column 30
> warning: /home/syedk/OCT/nnet/tests/MLP/isposint.m: possible Matlab-style
> short-circuit operator at line 45, column 21
> warning: using continuation marker \ outside of double quoted strings is
> deprecated and will be removed in a future version of Octave; near line 85
> of file '/home/syedk/OCT/nnet/tests/MLP/__trainlm.m'
> warning: using continuation marker \ outside of double quoted strings is
> deprecated and will be removed in a future version of Octave; near line
> 141
> of file '/home/syedk/OCT/nnet/tests/MLP/__trainlm.m'
> warning: using continuation marker \ outside of double quoted strings is
> deprecated and will be removed in a future version of Octave; near line
> 142
> of file '/home/syedk/OCT/nnet/tests/MLP/__trainlm.m'
> warning: using continuation marker \ outside of double quoted strings is
> deprecated and will be removed in a future version of Octave; near line
> 146
> of file '/home/syedk/OCT/nnet/tests/MLP/__trainlm.m'
> warning: using continuation marker \ outside of double quoted strings is
> deprecated and will be removed in a future version of Octave; near line
> 224
> of file '/home/syedk/OCT/nnet/tests/MLP/__trainlm.m'
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 234, column 19
> warning: using continuation marker \ outside of double quoted strings is
> deprecated and will be removed in a future version of Octave; near line
> 244
> of file '/home/syedk/OCT/nnet/tests/MLP/__trainlm.m'
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 244, column 77
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 244, column 54
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 244, column 33
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 251, column 68
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 251, column 45
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 251, column 29
> warning: using continuation marker \ outside of double quoted strings is
> deprecated and will be removed in a future version of Octave; near line
> 256
> of file '/home/syedk/OCT/nnet/tests/MLP/__trainlm.m'
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 257, column 18
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 256, column 77
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 256, column 51
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 256, column 32
> warning: using continuation marker \ outside of double quoted strings is
> deprecated and will be removed in a future version of Octave; near line
> 262
> of file '/home/syedk/OCT/nnet/tests/MLP/__trainlm.m'
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 262, column 76
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 262, column 50
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 262, column 31
> warning: using continuation marker \ outside of double quoted strings is
> deprecated and will be removed in a future version of Octave; near line
> 268
> of file '/home/syedk/OCT/nnet/tests/MLP/__trainlm.m'
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 268, column 76
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 268, column 50
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 268, column 31
> warning: using continuation marker \ outside of double quoted strings is
> deprecated and will be removed in a future version of Octave; near line
> 286
> of file '/home/syedk/OCT/nnet/tests/MLP/__trainlm.m'
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 286, column 73
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 286, column 48
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 286, column 30
> warning: using continuation marker \ outside of double quoted strings is
> deprecated and will be removed in a future version of Octave; near line
> 297
> of file '/home/syedk/OCT/nnet/tests/MLP/__trainlm.m'
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 304, column 23
> warning: /home/syedk/OCT/nnet/tests/MLP/__trainlm.m: possible Matlab-style
> short-circuit operator at line 304, column 45
> warning: using continuation marker \ outside of double quoted strings is
> deprecated and will be removed in a future version of Octave; near line
> 330
> of file '/home/syedk/OCT/nnet/tests/MLP/__trainlm.m'
> warning: using continuation marker \ outside of double quoted strings is
> deprecated and will be removed in a future version of Octave; near line
> 331
> of file '/home/syedk/OCT/nnet/tests/MLP/__trainlm.m'
> error: showtrainprogress: invalid conversion from NaN to logical
> error: called from:
> error:   /home/syedk/OCT/nnet/tests/MLP/__trainlm.m at line 304, column 5
> error:   /home/syedk/OCT/nnet/tests/MLP/__trainlm.m at line 146, column 5
> error:   /home/syedk/OCT/nnet/tests/MLP/train.m at line 125, column 11
> error:   /home/syedk/OCT/nnet/tests/MLP/mlp9_1_1_tansig.m at line 99,
> column 6
> 
> 
> 
> 
> On Thu, Jan 30, 2014 at 9:14 AM, syed khalid <

> syedk@

> > wrote:
> 
>> Hi
>>
>> I am running Octave 3.8 and running into this error when I run my
>> scripts.
>> I am attaching the offending programs. Any help would be appreciated.
>>
>>
>> error: showtrainprogress: invalid conversion from NaN to logical
>> error: called from:
>> error:   /home/syedk/OCT/nnet/tests/
>> MLP/__trainlm.m at line 304, column 5
>> error:   /home/syedk/OCT/nnet/tests/MLP/__trainlm.m at line 146, column 5
>> error:   /home/syedk/OCT/nnet/tests/MLP/train.m at line 125, column 11
>> error:   /home/syedk/OCT/nnet/tests/MLP/mlp9_1_1_tansig.m at line 99,
>> column 6

You can safely assume that Octave doesn't complain about the if statement in
L. 304 for nothing. So the question is how to find out what is wrong there.

Well, insert a keyboard statement in empty line 302 and run your code.
The code will stop at the keyboard statement in a debug prompt and you can
inspect the values of the three logical clauses making up your if statement.
At least one of them must be wrong. 
Once you know those values you can start reconstructing how they were
assigned that value.

Looking cursory at L.304 and the error message I have a gut feeling that it
is the rem() call (the result of which is being converted to logical through
the ! exclamation mark) that has problems, e.g., operand iEpoch not being
finite.
But sorry, you'll have to debug this yourself I'm afraid.

Philip




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