Error for PlotData (How Should I Fix It)

clc;
clear all;

%% Pre setting

path_name_ref = 'C:\Users\night\Desktop\\reference';   


imghei = 640;  
imgwid = 880;  


deltaZ = 71.972; 
wScale = 1/0.992;  


lamda_Start = 400;
lamda_End = 790;
lamda_Start_A = 400;
lamda_End_A = 685;


deltaZ = deltaZ*wScale;
lists = dir(path_name_ref);
n = length(lists);
imgnum_n=length(lists)-3;
imgnum = imgnum_n;

K_Start = floor(2*imgnum*deltaZ/lamda_End+1);
K_End = floor(2*imgnum*deltaZ/lamda_Start+1);
K_Real = (1:1:imgnum-1)*pi()/imgnum/deltaZ*1000;


K_Start_A = floor(2*imgnum*deltaZ/lamda_End_A+1);
K_End_A = floor(2*imgnum*deltaZ/lamda_Start_A+1);



%% Read Image
Data_Ref=zeros(imghei,imgwid,imgnum);
TMP=zeros(imghei,imgwid,3);

tDataR=zeros(imghei,imgwid);
valueR=zeros(imghei,imgwid);

RefFFTData=zeros(imghei,imgwid,imgnum);
ReflectanceData=zeros(imghei,imgwid,imgnum);
PlotData=zeros(imgnum);
for i=2:imgnum_n+1
    TMP(:,:,:)=imread(sprintf('%s\\referenceimage_ (%d)',path_name_ref,i),'BMP');
    Data(:,:,i-1)=TMP(:,:,1);
end

for i=1:imghei
    for j=1:imgwid
        tDataR = squeeze(Data(i,j,:))';
        valueR = mean(tDataR(imgnum_n-20:imgnum_n));                
        Data_Ref(i,j,imgnum_n+1:imgnum) = valueR;
    end
end
PlotData(:)=Data_Ref(200,200,:);
linspace(1,203,203)
plot(x,PlotData(x));

Hello, I am trying to plot data obtained from approximately 203 images but there seems to be an error at

PlotData(:)=Data_Ref(200,200,:);

It says element B and element A has to be the same, and I do not know how to fix the code for the plotted graph to show.

Thank you!

Answer 1

[Walter Roberson]

Change

PlotData(:)=Data_Ref(200,200,:);

to

PlotData = squeeze( Data_Ref(200,200,:) );

Change

linspace(1,203,203)
plot(x,PlotData(x));

to

plot(PlotData);