stantheman All American 1591 Posts user info edit post |
i have a chart with 4 columns that i want to use to create a random output combining one field from each column.
i would prefer to either use excel or a program on my TI-83 or 89
any suggestions? 9/30/2005 4:45:45 PM |
seedless All American 27142 Posts user info edit post |
there is not such thing as a random number. 9/30/2005 4:50:05 PM |
joe17669 All American 22728 Posts user info edit post |
=rand()
You can use that with any other function containing the 4 columns and multiply/divide, etc by the rand().
I would do
=(A1+B1+C1+D1)*rand()
I'm not sure if that's what you're asking for, maybe you can explain a little more?9/30/2005 4:50:41 PM |
stantheman All American 1591 Posts user info edit post |
^^6
this is the chart:
http://www.areforum.org/guest/Z%20misc%20files/comic%20relief%20archispeak.pdf
i think its self-explanatory when you look at it
[Edited on September 30, 2005 at 4:52 PM. Reason : .] 9/30/2005 4:51:01 PM |
Excoriator Suspended 10214 Posts user info edit post |
we're surrounded by random numbers
the trick is catching one 9/30/2005 4:52:49 PM |
stantheman All American 1591 Posts user info edit post |
Quote : | "=(A1+B1+C1+D1)*rand()" |
thats getting there
i guess i could do A(rand)+B(rand)...
is it possible to make sure the rand is an integer from 1 to 10?9/30/2005 5:07:18 PM |
Incognegro Suspended 4172 Posts user info edit post |
0.1883887310936866514215284935771538469299789116654955734276670378861146638461856111821872886594234965976983 9/30/2005 5:08:09 PM |
goalielax All American 11252 Posts user info edit post |
no, rand doesn't do integers...it does a random number between 0 and 1...I would say you're going to have to use a combination of rand and vlookup to do this
for example, have a cell with a rand in it, then do 10 columns with intervals like .05, .15, .25, etc, have each of those cells next to the first row of phrases. use vlookup to use the rand as a reference cell, look up the value in the column of numbers you made, and return the phrase if the rand is less than the number you have next to the cell (and you have true in the final field of vlookup so it rounds to closest).
repeat three more times for each column and output to get a phrase
Don't know if that makes sense to you or not
[Edited on September 30, 2005 at 5:16 PM. Reason : .] 9/30/2005 5:10:43 PM |
joe17669 All American 22728 Posts user info edit post |
You can install the Analysis Toolbox and get a function =RANDBETWEEN(min,max)
It's under Tools -> Addons
[Edited on September 30, 2005 at 5:14 PM. Reason : i think] 9/30/2005 5:13:49 PM |
eraser All American 6733 Posts user info edit post |
^^ the TI Calcs will do the same thing. Be sure to multiply it to move the decimal and you will need to round off to get an integer.
Quote : | "there is not such thing as a random number." |
-- seedless
You only think that because you are missing the seed.
/ nerd humor // if you want to call that humor /// even with a seed number its still really not random
[Edited on September 30, 2005 at 5:17 PM. Reason : ehe]9/30/2005 5:14:39 PM |
joe17669 All American 22728 Posts user info edit post |
http://www.random.org
entropy of 7.9999 is pretty damn random 9/30/2005 5:19:14 PM |
stantheman All American 1591 Posts user info edit post |
looks like i have a fun weekend ahead 9/30/2005 5:24:37 PM |
goalielax All American 11252 Posts user info edit post |
ok, i figured it out with a quick test
you're 10 rows in a column of numbers are going to be 0, .1, .2, .3, .4, .5, .6, .7, .8, .9 have those numbers in front of each column of words
do the =rand() in a cell below that column, repeat for all 4 columns
put your vlookup below the =rand()
your vlookup will look like this =vlookup(A11,A1:B10,2,true)...this assumes that you put the 0 in cell A1, your first phrase in cell B2, your =rand() in cell A11
if you're going to copy and paste it, make sure you lock the A1:B10 with F4 (it'll look like $A$1:$B$10)
repeat under each column, perfection
if you want, I can e-mail you an example spreadsheet
edit: actually, you can't lock and drag, as the rand won't change and each row will give the same phrase back to you. you could do another rand function to rand the rand in each subsquent row of phrases
[Edited on September 30, 2005 at 5:26 PM. Reason : .]
[Edited on September 30, 2005 at 5:31 PM. Reason : .] 9/30/2005 5:26:14 PM |
stantheman All American 1591 Posts user info edit post |
^awesome! pm sent 10/1/2005 12:44:50 AM |
goalielax All American 11252 Posts user info edit post |
file sent - hit me up with questions 10/1/2005 1:14:24 AM |
stantheman All American 1591 Posts user info edit post |
^you the man
on a related note:
One might say the life cycle cost control maximizes the real probability of cost overruns for the creation of an immortal monument to posterity. Architecturally thinking, the internal use adjacencies and circulation presents extremely synergistic challenges to the evolution of performance specifications. On the other hand, the structural dynamic analysis recognizes the critical necessity to subtract from the pragmatics of value engineering. 10/1/2005 1:38:31 AM |
afripino All American 11425 Posts user info edit post |
all u have to do is ask me. i'll send you a random number at $.05 / number.
to start things off: 3258926436 10/1/2005 5:04:05 PM |
Jere Suspended 4838 Posts user info edit post |
Quote : | "there is not such thing as a random number." |
10/1/2005 5:20:47 PM |