Subplots squished to top of page, manually setting position not working

I am trying to create a set of 12 subplots on a tabloid landscape layout to print to PDF.

The plots are all squished to the top of the page if I don't adjust the positioning. When I do adjust it, the plots disappear.

I don't want to use an outside function from the file exchange. I just want to use my own layout. Using R2018a

No Position Adjustment

x = randperm(40, 8);
y = randperm(10, 8);
g = randi([1,2],8,1);
nplts = 12;
for ii = 1:nplts
	ax(ii) = subplot(nplts, 3, ii);
	gscatter(x,y,g,'kmbgc')
	box on; grid on
	xlabel('x', 'FontSize', 10)
	ylabel('y', 'FontSize', 10)
	plotname = char(strcat('My_Plot', {' '}, num2str(ii)));
	title(plotname, 'FontSize', 10, 'Interpreter', 'None')
	lgd = legend;
	lgd.FontSize = 6; lgd.Location = 'southoutside'; 
end

With Position Adjustment

x = randperm(40, 8);
y = randperm(10, 8);
g = randi([1,2],8,1);
nplts = 12;
pos1 = [0.5 4.0 7.5 0.5 4.0 7.5 0.5 4.0 7.5 0.5 4.0 7.5];
pos2 = [14 14 14 10 10 10 6 6 6 2 2 2];
wid = 3;
ht = 2;

for ii = 1:nplts
	ax(ii) = subplot(nplts, 3, ii);
	gscatter(x,y,g,'kmbgc')
	box on; grid on
	xlabel('x', 'FontSize', 10)
	ylabel('y', 'FontSize', 10)
	plotname = char(strcat('My_Plot', {' '}, num2str(ii)));
	title(plotname, 'FontSize', 10, 'Interpreter', 'None')
	lgd = legend;
	lgd.FontSize = 6; lgd.Location = 'southoutside'; 
	
	set(gca, 'units', 'inches')
	p = [pos1(ii) pos2(ii) wid ht];
	set(gca, 'Position', p)
end

<< blank figure >>

Answer 1

[Star Strider]

The code tells subplot to plot 12 rows and 3 columns.

Try this instead:

ax(ii) = subplot(nplts/3, 3, ii);

The result is much more readable!

[newbie9]

oh my gosh, what a dumb mistake... so obvious now, thank you

[Star Strider]

As always, my pleasure!

You are not the first person to make that mistake!