help on plot in octave

[Jason Ding]

Hi, All,

 

I installed both gnuplot and Octave. Gnuplot and octave work well separately.  When I tried to use the “plot” function in octave, I got the following errors after seeing an empty figure window popping up. Can anyone have the similar experience? Or what may cause this?  

 

Thanks, a lot.

 

 

if (exists("GPVAL_TERM")) print GPVAL_TERM; else print NaN

                    ^

         line 0: invalid _expression_

 

error: Invalid call to strcat.  Correct usage is:

 

 -- Function File:  strcat (S1, S2, ...)

 

 

Additional help for built-in functions and operators is

available in the on-line version of the manual.  Use the command

`doc <topic>' to search the manual index.

 

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warning: __gnuplot_get_var__: some elements in list of return values are undefined