Hi all, I have a question regarding the counter block used in simulink

I am using a counter block in simulink which will count the number of events when the input was 1 and compare that output to a limit. I want to plot the output of this comparator block for which I tried to use the "To Workspace" block

. But the output is in the format as seen in the attachment and therefore I am finding it difficult to plot. I can understand that there is problem due to the data type, but I am not able to solve that. Can someone help me out with this.

Thanks a lot in advance, Raghavendran

Answer 1

[Orion]

it seems that your data val has singletons.

to remove them, use squeeze.

clear x
x(1,1,1:3)=1:3

cleandata = squeeze(x)

x(:,:,1) =

       1

x(:,:,2) =

       2

x(:,:,3) =

       3

cleandata =

       1
       2
       3

But why this format, It depends on the configuration of your to workspace block, and also, what is the data you are sending in.

for example

and I can plot the ramp and the sine

Result = squeeze(val);
ramp = Result(1,:);
sine = Result(2,:);

figure;
subplot(211)
plot(ramp)
subplot(212)
plot(sine)

Answer 2

[Raghavendran Srinivasan]

hi Orion, Thanks for your help. It works. My data is a structure (along with the corresponding time stamps) of size 2000x2, that I am sending in to the simulink model using the "from workspace" block. This data is processed and the output is what is sent to the counter. Also, since I am using Matlab 2010b, the to workspace block has only 3 options for the output format:

I used the Structure with time option, so that I can plot the output with respect to time.

Thanks, Raghavendran