how to insert an element in an array at a specific index?

how to insert an element in an array at a specific index?

I want to insert x3 at index 16 in x2

load('data.mat');
rows=size(RO_ISR,1); 
for i=1:rows
    RO=RO_ISR{i,1};
    IONOSODE=RO_ISR{i,2};
    x1 = RO.EDP8 * 10^6;
    y1 = RO.EDP3;
    
    columns=size(RO_ISR,2);  
    for j=3:columns
        ISR=RO_ISR{i,j};
        x2 = ISR.NE8;
        y2 = ISR.GDALT;
        TT1 = table2timetable(ISR);
        TT3 = synchronize(IONOSODE, TT1);
        F = fillmissing(TT3,'previous'); 
        ISR_date =ISR.Date;
        F_date = F.Date;
        [logical_Index ,index] = ismember(ISR_date(1),F_date);
        x3=IONOSODE{index,10};
        y3=IONOSODE{index,7};
        
        y4 = [y2;y3];% add row y2 to column y3
        
        final_altitude=sort(y4); % sort data in asending form 


[logical_Index ,index]= ismember(y3,final_altitude);% find index of y3 in final_altitude
        figure;
        hold on;
        plot(x1, y1);
        plot(x2, y2);
        plot(x3,y3,'*r','MarkerSize',10)
        xlabel('Electron Density');
        ylabel('Altitude');
        title('Plotting');
        legend('RO', 'ISR','ionosonde');
        hold off;
    end
end

[Matt J]

A toy example to clarify would be greatly beneficial.

Also, your code references a file data.mat that is not attached.

[t]

I answered on the above question, but how to insert an element in an array at a specific index ?

[Naman Kaushik]

Could you please clarify by what you mean by the "index of y3"

[Matt J]

I answered on the above question

I don't see any changes to the posted question. The attachment is still missing and no example has been added. An example means you show us both the input and the desired output, normally on a smaller piece of example data.

[t]

I edited the question

[t]

Or give me the function which I can use it to insert

[Image Analyst]

@h, an example of how to insert a value into a specified location of a vector is given below by @Ronit. Scroll down and look at it.

Answer 1

[Ronit]

Hi,

To add an element at a specific index in an array, try the following

x2 = [x2(1:15), x3, x2(16:end)]

[t]

@Ronit thank you so much for your answer