signal functions does not recognized by octave 3.6.1 -

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i have installed octave 3.6.1 along packages including "signal 1.1.2" when run simple example of "sigmoid_train" function error appears "sigmoid_train function undefined".
can body tell me problem?

the problem didn't load signal package. when type pkg list can find ones loaded asterisk in front of names. load package pkg load signal.

having load packages thing many users coming matlab find strange if compare other languages, such python, perl, or c++, expect them import, use, or #include every libraries available in system default? see octave's faq more details.

if want package loaded automatically default, recommended action add line pkg load signal ~/.octaverc file.

finally, have started octave, should had installed octave 3.8.1.


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