how to define class for basic functions like disp, load save

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Ashish 2014-1-17

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回答： Image Analyst 2014-1-26

i am calling classdef in a program and once called basic functions like disp, save, load does ot work. do i need to define any class for them. pl. guide

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Ashish 2014-1-26

main_file.m

thanks all for your comments. attached is the sample file where i am not able to call default functions.

Matt J 2014-1-26

编辑：Matt J 2014-1-26

I am not clear... is it the case that you have a .m file that has regular functions and also has a classdef inside it? A classdef needs to be in a file of its own.

That's not precisely true, Walter. A classdef file can contain sub-functions.

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Answer 1

Matt J 2014-1-26

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编辑：Matt J 2014-1-26

在 MATLAB Online 中打开

When I run your code, I have no problem displaying invoking the default disp.

>> obj=vrt_gen; disp(obj)
  vrt_gen with properties:
               hdr: []
           trailer: []
             word0: []
             psize: []
            stream: 0
            int_ts: []
         frac_ts_0: []
         frac_ts_1: []
             count: []
          nSamples: []
             nPkts: []
               pkt: []
              pkts: []
           payload: []
               lpf: []
           symbols: []
          dsymbols: []
                 M: []
                 N: []
                fs: []
                ts: []
                fc: []
              time: []
          upsample: []
             mixed: []
            filt_y: []
            filt_t: []
         filt_type: []
         filt_beta: []
           filt_Fd: []
           filt_Fs: []
            scheme: []
                 h: []
                 g: []
      filtered_sig: []

What is the full path to your main_file.m?

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Answer 2

Image Analyst 2014-1-26

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You don't have any methods in your class. And disp() doesn't even appear anywhere in the file. No, you do not need a class to use disp, save, and load. You can use them just by themselves. Not sure what you're doing tor attempting to do.