How can I plot a column vector of 32 bit floating points

Hello, I am using the matlab scripts drived from GNU Radio. I have taken a binary output from GNU Radio and have opened the file into my script below. i am having issues in plotting the column vector obtained from this script in a frequency vs time domain on a spectrogram plot. Reading the documentation on the spectrogram, I am still lost as to how to accomplish this feat. any guidance is appreciated.

My output from the command window (32 bit float column vector) which I would like to plot in a frequency vs time spectrogram:

-0.9217 - 0.3663i

1.1827 - 0.3266i

-0.2516 + 1.9482i

-0.4526 - 1.6277i

0.4382 - 0.3797i

function v = read_complex_binary (MATLAB_file , count)

  %% usage: read_complex_binary (filename, [count])
  %%
  %%  open filename and return the contents, treating them as
  %%  32 bit floats
  %%



  if (nargin < 2)
    %count = Inf;
    count = 2000;
  end

  f = fopen ('signal_data', 'rb');
  if (f < 0)
    v = 0;
else
    t = fread (f, [2, count], 'float'); % reads matlab_file reads in number of elemnts in the file (a) as pairs with type float
    
    fclose (f);
    v = t(1,:) + t(2,:)*i; % reads the first row and second row of the data and scans through 
    [r, c] = size (v); % creates a matrix and returns the rows and columns seperately 
    v = reshape (v, c, r); %reshapes 'V' into an 'c'x'r' array 

   
    a = 0:0.5:20;
    %x = (a,v,1,200);
    spectrogram(v,blackman(256), 'xaxis') % plot v on a spectrogram 
  end

[Srivardhan Gadila]

@Saxfield Chatmon, you said that you are having issues in plotting the column vector obtained from this script in a frequency vs time domain on a spectrogram plot. Can you state the exact issue, reproduction steps, required code, functions & variables with their values.