Adding multiple interp1 in a loop

Creating a loop for adding n number of interp1 functions:

sqrt(interp1(x1,y1,X) + interp1(x2,y2,X) +...+ interp1(xn,yn,X))

Where,

x: is the independent variable

y: is the dependent variable

X: is the range

The PROBLEM is that n is an variable, not a constant.

So, I need to do this in a LOOP.

[KSSV]

How or where you have data x1,x2,....xn?

[ugur uresin]

They're all double

For example:

x1 =

   1.0e+04 *

    0.0960
    0.0984
    0.1008
    0.1032
    .
    .
    .

[Stephen23]

ugur uresin's "Answer" moved here:

My code is below. This is a manual procedure. I would like to AUTOMATIZE and GENERALIZE this procedure due to the fact that number of variables is not constant -changes by data- (e.g. 8 here).

x1 = rpmmat(:, 1);
x2 = rpmmat(:, 2);
x3 = rpmmat(:, 3);
x4 = rpmmat(:, 4);
x5 = rpmmat(:, 5);
x6 = rpmmat(:, 6);
x7 = rpmmat(:, 7);
x8 = rpmmat(:, 8);

y1 = plotdata_ed2(:, 1);
y2 = plotdata_ed2(:, 2);
y3 = plotdata_ed2(:, 3);
y4 = plotdata_ed2(:, 4);
y5 = plotdata_ed2(:, 5);
y6 = plotdata_ed2(:, 6);
y7 = plotdata_ed2(:, 7);
y8 = plotdata_ed2(:, 8);

rss1 = sqrt(interp1(x1,y1,X)+interp1(x2,y2,X)+interp1(x3,y3,X)+interp1(x4,y4,X)+interp1(x5,y5,X)+interp1(x6,y6,X)+interp1(x7,y7,X)+interp1(x8,y8,X));

I tried many type of loop algorithms but they couldn't run.

Answer 1

[Stephen23]

This is easy one you avoid the counter-productive anti-pattern of creating numbered variables:

yn = 0;
for k = 1:8
    xo = rpmmat(:,k);
    yo = plotdata_ed2(:,k);
    yn = yn + interp1(xo,yo,X);
end
rss = sqrt(yn);

[ugur uresin]

It works! Thanks in advance.