Error plotting the spectrum with using user fucntion definition (Error using matlab.gra​phics.axis​.Axes/set Invalid parameter/value pair argument)

I try to plot power spectrum and create custom function to signal analyzer. First of my step is create plotting function psplot2.m

function psplot2(X1, Y1)
% psplot2(X1, Y1)
%  X1:  vector of plot x data
%  Y1:  vector of plot y data


% Create figure
figure1 = figure;

% Create axes
axes1 = axes('Parent',figure1);
hold(axes1,'on');

% Create plot
plot(X1,Y1,'LineWidth',1,'Color',[0 0 1]);

% Create ylabel
ylabel('Amplitude','FontName','Arial');

% Create xlabel
xlabel('Freq, kHz','FontName','Arial');

% Uncomment the following line to preserve the Y-limits of the axes
ylim(axes1,[0 80]);
grid(axes1,'on');
hold(axes1,'off');

% Set the remaining axes properties
set(axes1,'ContextMenu','FontName','Arial','GridAlpha',0.2,'GridLineStyle',...
    '--','TickDir','out','XTickLabel',...
    {'0', '10', '20','30','40', '50','60', '70', '80'});

And when I try to call this function file

n = length(sig1);
y = fft(sig1);
freq = 80e3;
fs =  (0:n-1)*(freq/n);
power = abs(y).^2/n;

psplot2(fs,power)

get the same error:

Error using matlab.graphics.axis.Axes/set
Invalid parameter/value pair arguments.

Error in psplot2 (line 29)
set(axes1,'ContextMenu','FontName','Arial','GridAlpha',0.2,'GridLineStyle',...

Error in test_spetcrum (line 16)
psplot2(fs,power)

How to fix this error? Maybe I wrong get axis properties or figure axis properties? I read documentation for "axes", but it is not working.

Sample of my signals data (sig1.mat).

Answer 1

[Jonas]

the problem is the part set(axes1,'ContextMenu'), which is not a valid Name-Value pair, leave out 'ContextMenu', since it appears you do not want to set this property to anything specific

[Alex Milns]

I leave out this part and now it's working! Thanks a lot!