command 'downsample' in matlab doesn't work
显示 更早的评论
for example :
x = [1 2 3 4 5 6 7 8 9 10];
y = downsample(x)
we see :
y =
2 4 6 8 10
but for :
x = [1 2 3 4 5 6 7 8 9 10];
y = downsample(x,3)
it doesn't work
in matlab R2011b
采纳的回答
Wayne King
2011-11-7
I think you need to give the error message, if any, you receive in R2010b. Do you have the Signal Processing Toolbox in your R2010b installation?
Enter
>>ver
to make sure you have the SP Toolbox.
I have no problem with this:
x = [1 2 3 4 5 6 7 8 9 10];
y = downsample(x,3);
in R2010b.
3 个评论
amid aliaghazadeh
2011-11-7
Wayne King
2011-11-7
Then what is not working for you. What error message are you getting?
amid aliaghazadeh
2011-11-7
更多回答（1 个）
Wayne King
2011-11-7
Please enter:
>>which downsample
at the command line. I think in your R2010b version you have some other downsample.m (which is not the MATHWORKS version).
If this other downsample.m precedes the MATHWORKS version on your path, then you are calling that program and not the MATHWORKS version.
If you do not get back something like:
toolbox/signal/signal/downsample.m
then you have a different version of downsample.m
类别
在 帮助中心 和 File Exchange 中查找有关 Multirate Signal Processing 的更多信息
2011-11-7
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
