How to write if else program on matlab?

This is the program, but it is not working. My output is always 5. But why? How to correct it? It is written as a matlab function in simulink.
PROGRAM:
function betaref = fcn(w)
if (w<5)
betaref=45;
elseif (5<w<15)
betaref=5;
elseif (15<w<25)
betaref=0;
else
betaref=90;
end

2 个评论

Run
value = fcn(0);
It returns 45 on my system,
Thankyou for your reply!
This is my simulink diagram. My output should track betaref. My input is 25 which implies betaref should be zero. But i have 5 instead.

请先登录,再进行评论。

回答(1 个)

elseif (0<power<=1000)
This doesn't do what you think it does. If you're writing this code in the MATLAB Editor and you're using a relatively recent release you should have received a Code Analyzer warning alerting you to that fact (an orange line in the right scroll bar for the Editor window and orange underlines of part of this construct.)
Instead:
elseif (0<power & power<=1000)

1 个评论

Thankyou for your reply!
What if my program is like,
function betaref = fcn(w)
if (w<5)
betaref=45;
elseif (5<w<15)
betaref=5;
elseif (15<w<25)
betaref=0;
else
betaref=90;
end

请先登录,再进行评论。

类别

帮助中心File Exchange 中查找有关 Seismology 的更多信息

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by