Removing values before plotting graph

I want to use an if statment to remove all values where X is larger than L before plotting a graph

however when i complete using this model nothing happens

any advice??

[Johannes Rebling]

Could you post the actual code and not a picture of it?

[Sam Clifford]

M=m+2;
m=83;
N=10
V=linspace(1,10,N);
E=6;
L=4;
A=5;
U=1/2.*M.*V.^2.
F=sqrt((U*2*E*A)/L)
X=U.*2./F
if (X>L)
    X=0
elseif X<L
    plot(V,X)
end
a=(gradient(V,X).*V)
FP=m.*a

Answer 1

[KSSV]

If X is your data and L is the number.

X(X>L) = []   ; % this removes elements from X which are larger than L