How to list specific variable at all points except at certain values

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I am currently writing a code where I am trying to figure out how to program a certain value for all inputs except at certain values. For example, if I am running trials starting at 0 and ending at 10, and would like an output of 5 for trails 0-4, and an output of 10 for all others, how would I go about coding that? And if possible, can it be set up to where all outputs do not need to manually be written, so if I decide to run more trials (either before 0 or after 10) it will autofill the new slots? Thanks for the help

Respuestas (1)

Star Strider
Star Strider el 12 de Dic. de 2021
I have no idea what the actual application is.
One option:
outpt = @(trial) ((trial >= 0) & (trial <= 4)).*5 + ((trial < 0) | (trial >= 5))*10;
x = -5:15;
stem(x, outpt(x), 'filled')
axis([-5.5 10.5 -0.5 10.5])
Experiment to get the desired results.
  6 comentarios
Anthony Koning
Anthony Koning el 12 de Dic. de 2021
I wish I had a test version of this table, but it is unfortately a screenshot from my textbook of what the output should look like. I understand the math behind what's going on and how to do this pencil/paper, but an having difficulty getting the script to work. The example script provided to us is saying that the input should look like this:
if( 0<=tNow && tNow<StimDur ) % start stimulus current at tNow=0
Jm = Jstim ;
else % stop stimulus when tNow = StimDur
Jm = 0 ;
but trying to run it this way is only producing the timestep values of (0:.05:.5), but not with the output value of 0 or 200. These are for the 'Is' coulumn. As for the ‘ioopent’, ‘Vm’, ‘vdot’, ‘n’, ‘m’, and ‘h’ coulumns, those are working when testing them with manually inputted values, but actually rely on the Is value to be computed for a whole script (for example values of the Vm coulumn are calculated as Vm_previous - (Is-X)*.05).
Star Strider
Star Strider el 12 de Dic. de 2021
I apologise, however this isn’t helpful.
I understand that you may understand the textbook description, however I don¹t. I’m still having a difficult time understanding both the input and the desired output.
Is there a way for you to download the data from the textbook website online and post it here with an explanation of what it is and what the desired output should be from it?
Just now, I don’t have a clue.
I would very much like to help, however I need more definitive information.

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