I have a number box that updates giving me an average value for whats going on in a matrix (the simple version)

I want to apply a statement to it that evalutes the number and depending on what it is the output will change accordingly. If n is the number i want something like:

etc ... up to 100 (or 127 for a midi style change to my instrument - either is fine)

Firstly how do i create an inlet for the 'if' itself, it just comes up as an object with no inlets or outlets

The max documentation sometimes uses the £i1 or £/1 to indicate variable 1, whats the difference?

finally I have looked at the 'if' help docs but they don't cover where im going wrong

I want to apply a statement to it that evalutes the number and depending on what it is the output will change accordingly.  If n is the number i want something like:

if n
if n >10 but =
if n >20 but =
etc ... up to 100 (or 127 for a midi style change to my instrument - either is fine)

finally I have looked at the 'if' help docs but they don't cover where im going wrong


the-if-statment-and-syntax

the object you want is [split].......you should find references to [if] on this forum complaining about its unwieldiness (?): use [number] -> [split 0 10] (out right) -> [split 10 20]..etc. I get lots of mileage from the 'See Also' menu in such objects' helpfiles.

The syntax usually follows this structure eg; [if $i1 < 10 then bang else out2 $i1]; the three types of variable are integer, float, symbol (text character[s]): $i1, $f1, $s1.

Hi Ali,
the object you want is [split].......you should find references to [if] on this forum complaining about its unwieldiness (?): use [number] -> [split 0 10] (out right) -> [split 10 20]..etc. I get lots of mileage from the 'See Also' menu in such objects' helpfiles.

The syntax usually follows this structure eg; [if $i1 < 10 then bang else out2 $i1]; the three types of variable are integer, float, symbol (text character[s]): $i1, $f1, $s1.
Brendan


Here's the basic version of the patch im working on by the way of anone fancies tinkering around

I sort of get what you mean Brendand but how would you write the expression?

which would then create more outlets for the if object

sending a bang for each outlet would work (as i wnat it to send a message to play a harmonic instrument so if out 1 was 100Hz, out2 was 220Hz etc etc it should work

if$i1 < 10 out 1,
if$i1 >10 but < 20 out2
etc.etc

1. afaik, [expr] will not take multiple statements (as in 'elseif'), just multiple conditions: "or" = ||; "and" = &&, etc, for example:

[if $i1 > 0 && $i1 < 10 then bang else out2 $i1], then hook up outlet right to another [expr]. Other readers might be able to create something more flexible using the [vexpr] object but......

2. for this task, do not use multiple [if] statements, I've been reprimanded for doing so myself; just passing on the good advice. Use [split]. Not [if].

not only IF and EXPR but several objects will only show their inlets when

[if $i1>$i2 && $i1>$i3 && $i1>$i4 && $i1>$i5 && $i1>$i6 && $i1>$i7 && $i1>$i8 && $i1>$i9 then $i1]

you may use brackets and spaces for better readabilty:

the if statement itself may also contain basic math expressions:

[if int(log(((max((($i1)%12)+1,400)/3.14),90.)) >=10) then $i1]

the output may be a constant or symbol, though:

[if $f1==7 then 1 else 0] (is the same as [== 7.])

not only IF and EXPR but several objects will only show their inlets when
the required arguments are there.

[if $i13 then $i1]
you can have up to 9 inlets:

[if $i1>$i2 && $i1>$i3 && $i1>$i4 && $i1>$i5 && $i1>$i6 && $i1>$i7 && $i1>$i8 && $i1>$i9 then $i1]
you may use brackets and spaces for better readabilty:

[if   ($i13)   then   $i1]
the if statement itself may also contain basic math expressions:

[if int(log(((max((($i1)%12)+1,400)/3.14),90.)) >=10) then $i1]
but not on the output side:

[if $i1
the output may be a constant or symbol, though:

[if $f1==7 then 1 else 0] (is the same as [== 7.])
that should be all.
-110

Wow, thanks very much Roman, that clears up a lot of questions i was about to ask

I will put the instrument up on the forums when its getting near completion for feedback and encourage people to muck around with it and make music

Thanks for all the extensive answers and help guys

Wow, thanks very much Roman, that clears up a lot of questions i was about to ask
Cheers again.

...and this would work for so many other similar scenarios; nice one - simplicity rules!

haha, christ. I didn't even think of doing it that simply. Just shows you have to keep on your toes when trying to solve problems.

@vanille
haha, christ. I didn't even think of doing it that simply. Just shows you have to keep on your toes when trying to solve problems.


Thanks for the help guys, lots of solutions and variety too. Happy Days! :)

Thanks for the help guys, lots of solutions and variety too.  Happy Days! :)


The if statment and syntax