Morgan

I'd like to compute a weighted average of an arbitrary number of

floats. "lave" from L Objects and the other averaging objects to be

found on MaxObjects will only compute an unweighted 1:1:... average as

I'd like to compute a weighted average of an arbitrary number of
floats. "lave" from L Objects and the other averaging objects to be
found on MaxObjects will only compute an unweighted 1:1:... average as
far as I can tell.

weighted-average-of-n-floats

Where are the floats coming from? Could you send a bang each time you get a float, then use counter to count each time you get a float, and continually add the floats, then when you need to find the average, just divide the sum by counter?

Where are the floats  coming from? Could you send a bang each time you get a float, then use counter to count each time you get a float, and continually add the floats, then when you need to find the average, just divide the sum by counter?


Do you meen a histogram? Counting how many times a particular number

> Subject: [maxmsp] Re: Weighted Average of n Floats

> Where are the floats coming from? Could you send a bang each time you get a

> float, then use counter to count each time you get a float, and continually

> add the floats, then when you need to find the average, just divide the sum by

Do you meen a histogram?  Counting how many times a particular number
occurs?

Cheers
Gary Lee Nelson
Oberlin College
www.timara.oberlin.edu/GaryLeeNelson

> From: Myrddin_Wyllt 
> Organization: Cycling '74
> Reply-To: 
> Date: Mon, 14 Apr 2008 09:07:21 -0600
> To: 
> Subject: [maxmsp] Re: Weighted Average of n Floats
>
>
> Where are the floats  coming from? Could you send a bang each time you get a
> float, then use counter to count each time you get a float, and continually
> add the floats, then when you need to find the average, just divide the sum by
> counter?

Could you describe this approach in a little more detail? I think I

On Mon, Apr 14, 2008 at 11:07 AM, Myrddin_Wyllt

> Where are the floats coming from? Could you send a bang each time you get a float, then use counter to count each time you get a float, and continually add the floats, then when you need to find the average, just divide the sum by counter?

Could you describe this approach in a little more detail? I think I
see what you're getting at...

On Mon, Apr 14, 2008 at 11:07 AM, Myrddin_Wyllt
 wrote:
>
>  Where are the floats  coming from? Could you send a bang each time you get a float, then use counter to count each time you get a float, and continually add the floats, then when you need to find the average, just divide the sum by counter?
>

jb.histo located with maxobjects.com in
http://www.greyfade.com/joe/max_msp.html

No, I need the mean/average of a number of floats (over any time

interval), but I want to weight certain floats that are averaged (like

how grades are computing...you know, 50% final exam, 25% problem sets

On Mon, Apr 14, 2008 at 11:22 AM, Gary Lee Nelson

> Do you meen a histogram? Counting how many times a particular number

> > Date: Mon, 14 Apr 2008 09:07:21 -0600

> > Subject: [maxmsp] Re: Weighted Average of n Floats

> > Where are the floats coming from? Could you send a bang each time you get a

> > float, then use counter to count each time you get a float, and continually

> > add the floats, then when you need to find the average, just divide the sum by

No, I need the mean/average of a number of floats (over any time
interval), but I want to weight certain floats that are averaged (like
how grades are computing...you know, 50% final exam, 25% problem sets
etc.)

On Mon, Apr 14, 2008 at 11:22 AM, Gary Lee Nelson
 wrote:
> Do you meen a histogram?  Counting how many times a particular number
>  occurs?
>
>  Cheers
>  Gary Lee Nelson
>  Oberlin College
>  www.timara.oberlin.edu/GaryLeeNelson
>
>
>  > From: Myrddin_Wyllt 
>  > Organization: Cycling '74
>  > Reply-To: 
>  > Date: Mon, 14 Apr 2008 09:07:21 -0600
>  > To: 
>  > Subject: [maxmsp] Re: Weighted Average of n Floats
>
>
> >
>  >
>  > Where are the floats  coming from? Could you send a bang each time you get a
>  > float, then use counter to count each time you get a float, and continually
>  > add the floats, then when you need to find the average, just divide the sum by
>  > counter?
>
>
>

Sorry, I don't understand how a histogram can achieve what I'm looking

for. I need to be able to set the weights myself and I need one float

value at the end, the average. Is the idea that I can use the

histogram to set the weights? If so, I'm not quite sure how I'd do

On Mon, Apr 14, 2008 at 11:32 AM, Gary Lee Nelson

> jb.histo located with maxobjects.com in

Sorry, I don't understand how a histogram can achieve what I'm looking
for. I need to be able to set the weights myself and I need one float
value at the end, the average. Is the idea that I can use the
histogram to set the weights? If so, I'm not quite sure how I'd do
this...

On Mon, Apr 14, 2008 at 11:32 AM, Gary Lee Nelson
 wrote:
> jb.histo located with maxobjects.com in
>  http://www.greyfade.com/joe/max_msp.html
>
>  Total time search to download < 2:00
>
>
>  Cheers
>  Gary Lee Nelson
>  Oberlin College
>  www.timara.oberlin.edu/GaryLeeNelson
>
>
>  > From: Myrddin_Wyllt 
>  > Organization: Cycling '74
>  > Reply-To: 
>  > Date: Mon, 14 Apr 2008 09:07:21 -0600
>  > To: 
>  > Subject: [maxmsp] Re: Weighted Average of n Floats
>  >
>  >
>
>
> > Where are the floats  coming from? Could you send a bang each time you get a
>  > float, then use counter to count each time you get a float, and continually
>  > add the floats, then when you need to find the average, just divide the sum by
>  > counter?
>
>
>

Quote: Morgan Sutherland wrote on Mon, 14 April 2008 09:03

----------------------------------------------------

> I'd like to compute a weighted average of an arbitrary number of

Quote: Morgan Sutherland wrote on Mon, 14 April 2008 09:03
----------------------------------------------------
> I'd like to compute a weighted average of an arbitrary number of
> floats. 

Your patch computes an average for sure, but I'm not entirely sure how

the weighting works. If I change it to anything but zero, the output

quickly approaches infinity. I also don't know how I'd scale it to

handle multiple inputs and multiple weights.

On Mon, Apr 14, 2008 at 12:04 PM, Gregory Taylor wrote:

> Quote: Morgan Sutherland wrote on Mon, 14 April 2008 09:03

> ----------------------------------------------------

> > I'd like to compute a weighted average of an arbitrary number of

> #P flonum 203 42 60 12 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;

> #P flonum 119 42 60 12 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;

> #P flonum 119 343 60 12 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;

> #P fasten 3 0 4 0 124 298 222 298 222 225 179 225;

> knowledge is not enough/science is not enough/Love is dreaming this equation

Your patch computes an average for sure, but I'm not entirely sure how
the weighting works. If I change it to anything but zero, the output
quickly approaches infinity. I also don't know how I'd scale it to
handle multiple inputs and multiple weights.

On Mon, Apr 14, 2008 at 12:04 PM, Gregory Taylor  wrote:
>
>  Quote: Morgan Sutherland wrote on Mon, 14 April 2008 09:03
>  ----------------------------------------------------
>
> > I'd like to compute a weighted average of an arbitrary number of
>  > floats.
>
>  ??
>
>  #P window setfont "Sans Serif" 12.;
>  #P window linecount 1;
>  #P comment 217 67 79 196620 weighting;
>  #P flonum 203 42 60 12 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
>  #P flonum 119 42 60 12 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
>  #P flonum 119 343 60 12 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
>  #P newex 203 184 42 196620 !- 1.;
>  #P newex 203 118 36 196620 t f f;
>  #P newex 119 120 37 196620 t b f;
>  #P newex 174 237 39 196620 * 0.9;
>  #P newex 119 268 65 196620 + 0.;
>  #P newex 119 238 48 196620 * 0.1;
>  #P newex 119 208 37 196620 f;
>  #P comment 131 68 50 196620 data;
>  #P connect 9 0 5 0;
>  #P connect 10 0 6 0;
>  #P connect 3 0 8 0;
>  #P fasten 3 0 4 0 124 298 222 298 222 225 179 225;
>  #P connect 7 0 4 1;
>  #P fasten 6 1 2 1 234 171 162 171;
>  #P connect 6 0 7 0;
>  #P connect 5 0 1 0;
>  #P connect 5 1 1 1;
>  #P connect 1 0 2 0;
>  #P connect 2 0 3 0;
>  #P connect 4 0 3 1;
>  #P window clipboard copycount 12;
>
>  --
>  knowledge is not enough/science is not enough/Love is dreaming this equation
>
>
>

perhaps have averaging subpatches, then in your main average patch, multiple the numbers according to hwo muc hthey need to be weighted (ie, if its 35% of the total, multiply the number by .35), then add all of the outputs together.

to get the individual averages of the different floats, take whatever object is outputting the floats, connect it to a patch that will output a bang everytime a float is received (I would post a patch like this, but im at a computer currently w/o Max), say a "sel > 0" object (tho im not sure if you can have > or < in sel, but you get the idea); connect the sel object to a counter to keep track of the number of floats received. Also connect the object outputting the floats to an object to continually add them together (a '+' object, w/ the float outputting object in the right inlet and the number box in the left). Then divide that total by the counter's number.

Don't know if this is what you're looking for. sorry i cant post a patch. Ill be home later today and if you haven't found a solution by then, ill try to work it out.

"perhaps have averaging subpatches, then in your main average patch,

multiple the numbers according to hwo muc hthey need to be weighted

(ie, if its 35% of the total, multiply the number by .35), then add

Ah! So simple. No need for you to try it yourself unless you want to.

I'll post an abstraction when I have time.

On Mon, Apr 14, 2008 at 3:47 PM, Myrddin_Wyllt

> perhaps have averaging subpatches, then in your main average patch, multiple the numbers according to hwo muc hthey need to be weighted (ie, if its 35% of the total, multiply the number by .35), then add all of the outputs together.

> to get the individual averages of the different floats, take whatever object is outputting the floats, connect it to a patch that will output a bang everytime a float is received (I would post a patch like this, but im at a computer currently w/o Max), say a "sel > 0" object (tho im not sure if you can have > or < in sel, but you get the idea); connect the sel object to a counter to keep track of the number of floats received. Also connect the object outputting the floats to an object to continually add them together (a '+' object, w/ the float outputting object in the right inlet and the number box in the left). Then divide that total by the counter's number.

> Don't know if this is what you're looking for. sorry i cant post a patch. Ill be home later today and if you haven't found a solution by then, ill try to work it out.

"perhaps have averaging subpatches, then in your main average patch,
multiple the numbers according to hwo muc hthey need to be weighted
(ie, if its 35% of the total, multiply the number by .35), then add
all of the outputs together."

Ah! So simple. No need for you to try it yourself unless you want to.
I'll post an abstraction when I have time.

On Mon, Apr 14, 2008 at 3:47 PM, Myrddin_Wyllt
 wrote:
>
>  perhaps have averaging subpatches, then in your main average patch, multiple the numbers according to hwo muc hthey need to be weighted (ie, if its 35% of the total, multiply the number by .35), then add all of the outputs together.
>
>  to get the individual averages of the different floats, take whatever object is outputting the floats, connect it to a patch that will output a bang everytime a float is received (I would post a patch like this, but im at a computer currently w/o Max), say a "sel > 0" object (tho im not sure if you can have > or < in sel, but you get the idea); connect the sel object to a counter to keep track of the number of floats received. Also connect the object outputting the floats to an object to continually add them together (a '+' object, w/ the float outputting object in the right inlet and the number box in the left). Then divide that total by the counter's number.
>
>  Don't know if this is what you're looking for. sorry i cant post a patch. Ill be home later today and if you haven't found a solution by then, ill try to work it out.
>
>
>

a setting in the right hand box of .5 does a straight 

average. feed it a set of random numbers and tack a

multislider in scroll mode on the bottom and see if

a setting in the right hand box of .5 does a straight 
average. feed it a set of random numbers and tack a
multislider in scroll mode on the bottom and see if
it doesn't make more sense.


I'd use something like this, no need to scale weights:

I ended up using this finally (8 elements max):