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Re: truncation problem
Posted:
Jan 10, 2014 2:40 AM


On 1/9/2014 11:55 PM, Mohammad Sayeed wrote: > Dear Nasser > Thank you for your kind reply. but my problem is more general one. >say that I have hourly price information in a matrix. in the first column >I have the hours from 1 to 24 repeatedly for 10 days. in the second column >I have the prices of each hour for a given stock. I need to get rid of >first 10 hours and last 4 hours from the matrix and have the 11th to 20th >hours' data for each ten days. Can I do it by using MATLAB? Your contribution will help me a lot. > > Kind regards > > Sayeed >
There are many ways to do this, here is one way, I am sure there are better ways but I am lazy now
 nDays = 5; nhrs = 24; data = rand(nDays*nhrs,2); size(data)
120 2
r = arrayfun(@(i) data(nhrs*(i1)+11:nhrs*(i1)+20,:),1:nDays,'UniformOutput',false); filteredData = cell2mat(r'); size(filteredData)
50 2 
Nasser



