Simulink if/else block

Hi,

I'm looking for the right way to set a conditional statement in Simulink. That's the pseudo-code I wish to have:

if x < 6
y = 0
elseif x > 20
y = 2
else
y = 1

The block if is not really what I'm looking for, I just want a small controller with one input (x) and one output (y).

thx

Answer 1

[Steven]

the block I was looking for was index vector

Answer 2

[Kaustubha Govind]

There's at least two ways that I can think of:

1. Use a 1-D Lookup Table with [0 1 1 2] as the table data and [6-eps 6 20 20+eps] as the breakpoints
2. Use a combination of Logic and Bit Operations (Compare to Constant and AND blocks).

[Steven]

but all logical block send 0 or 1 as output. What's the block to use to take some value if 0, some other if 1