How to convert array of data to images

I have a file containing 500 by 20000 data points. I want to convert the data to images. Here is the code I used but I am getting error

s = load('Absorptiondata8.mat');

yo = s.Absorptiondata8;

columns = max(yo);

row = length(yo);

outputImage = false(row);

for k = 1 : row

outputImage(yo(k)) = true;

end

imshow(outputImage);

Answer 1

[Image Analyst]

This is just a set of 6 small numbers - not a complete image where every pixel has an intensity value.

data = readmatrix('ab.txt')

data = 5×2

0.0000 0.0102 0.0000 -0.0066 0.0000 0.3177 0.0000 0.3639 0.0000 0.3138

x = data(:, 1);
y = data(:, 2);
plot(x, y, 'b.-', 'LineWidth', 2, 'MarkerSize', 40)
grid on;

Exactly how would you like to make those 6 (x,y) coordinates into an image? Would you like to use poly2mask, or perhaps exportgraphics???