lunamoonmoon's articles:

Items(142) /15 Next >> Last >|

Parsing huge text files? 2 67 (4/13/2011 2:47:11 AM) comp.soft-sys.matlab Hi all, I have huge logs files that need to be processed. Each log file is about 500MB. These are non-structured mixtures of strings and numbers. To give an example, the first row might contain trader id, t... Luna

how do I change the links in a batch mode? 0 207 (9/26/2010 9:29:07 PM) comp.soft-sys.matlab Hi all, In an Excel book I have many sheets and they are all linked to another Excel book file (B.xls). I would like to change the links from B.xls to C.xls... How to do this programmatically from wit... Luna

how do I rapidly "freeze" all the links in Excel sheets? 12 168 (9/26/2010 9:24:14 PM) comp.soft-sys.matlab Hi all, I currently save copy of my Excel sheets every day, for historical records. However because some of the cells are connected to live data sources, and other cells are linked to other time-varying... Luna

From Matlab, how do I copy a few cells(including formatting) in Excel and paste to Outlook to send out? 0 435 (9/24/2010 8:11:08 PM) comp.soft-sys.matlab From Matlab, how do I copy a few cells(including formatting) in Excel and paste to Outlook to send out? I think this needs two steps: 1. How to copy cells (including formatting) to clipborad? 2. How t... Luna

From Matlab, how do I copy some cells(including formatting) and save as image file? 4 319 (9/24/2010 8:09:36 PM) comp.soft-sys.matlab From Matlab, how do I copy some cells(including formatting) and save as image file? I want to do that via COM or ActiveX server. I know how to open and close the Excel sheet. But what's the command in... Luna

what's a good way of filtering/smoothing 4D data? 14 257 (9/9/2010 6:31:08 PM) comp.soft-sys.matlab Lets say you obtain some sampled data from function f: f is a function of parameters p1, p2, p3, i.e. f(p1, p2, p3) where p1 takes value on a set of n1 values, p2 takes value on a set of n2 values, and p... Luna

what's a good way of visualizing 4-D data? 2 205 (9/9/2010 6:28:07 PM) comp.soft-sys.matlab Lets say you are optimizing three parameters, by grid searching, you obtain: f as a function of parameters p1, p2, p3, i.e. f(p1, p2, p3) where p1 takes value on a set of n1 values, p2 takes value on a ... Luna

SOS! How to deploy Matlab project? 7 199 (8/4/2010 2:08:44 PM) comp.soft-sys.matlab Hi all, I couldn't get it to work. I have a Matlab project with files in a few subfolders under the main folder. The main script is under the main funder and then it runs the scripts under each subfo... Luna

I don't have the toolbox, how do I do "autocorr"? 1 232 (7/29/2010 1:44:13 AM) comp.soft-sys.matlab How to compute "autocorr" without using the toolbox? I don't have access to that toolbox. Thank you! ... Luna

how to count the occurence of events cumulatively in Matlab fast? 2 189 (7/28/2010 3:24:08 PM) comp.soft-sys.matlab Hi all, I have two questions: ------------------------------------------- Q1: Let's say we have an array "x", which is an Nx1 column vector of time series data, following the order of days... And ... Luna

lunamoonmoon's replies:

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how do you find adjacent numbers fast? 5 203 (6/23/2010 7:43:09 PM) comp.soft-sys.matlab Here is the number I want to find, let's call it x, here is the big vector, let me call it A, I want to find the number x in A, in a fuzzy way. Lets do an example: x=3, A=[0, 1, 2, 3, 4, 5], then I wa... lunamoonmoon (258)

How do I do recursive rolling average and variance fast? 6 281 (7/5/2010 4:20:19 PM) comp.soft-sys.matlab Hi all, In recursive moving or rolling average, result_t = alpha * p_t + (1-alpha)* result_{t-1}, where p_t is the new arrival... How do we do this fast in Matlab, using the "filter" function format... lunamoonmoon (258)

What's the best way to write mixed data into CSV? 8 214 (7/20/2010 5:49:17 PM) comp.soft-sys.matlab In Matlab, I have a cell array of strings which represents the dates. And also have a numerical array of data points, each row of data corresponding to the date... I want to output these into CSV file. ... Luna

How to align two time series fast? 21 48 (7/21/2010 7:53:47 PM) comp.soft-sys.matlab How to align two time series fast? Hi all, I have two time series, both are in the following format: Date Data 1/1/2010 5.3 1/2/2010 4.4 .... Lets label the first time series: MyDates1, MyData1 ... lunamoonmoon (258)

how do I change the precision of variable viewer? 6 190 (7/22/2010 2:38:37 PM) comp.soft-sys.matlab It's 4 digits by default... how to change it? thanks ... lunamoonmoon (258)

How do you get more than 4 columns in Variable Editor/Viewer? 3 316 (7/22/2010 4:31:12 PM) comp.soft-sys.matlab Maximal 4 columns? Too bad. ... lunamoonmoon (258)

how to do running max fast in Matlab? 4 228 (8/1/2010 11:13:12 PM) comp.soft-sys.matlab HI all, I am hoping to change my for loop into something without for loop and therefore must faster. Q1: for j=1:size(MyData, 2); for i=1:size(MyData, 1); RunningMax(i, j)=max(MyData(1:i, j); ... Luna

SOS! How to deploy Matlab project? 7 199 (8/4/2010 2:08:44 PM) comp.soft-sys.matlab Hi all, I couldn't get it to work. I have a Matlab project with files in a few subfolders under the main folder. The main script is under the main funder and then it runs the scripts under each subfo... lunamoonmoon (258)

How to implement this logic fast? 13 104 (9/10/2010 1:25:53 AM) comp.soft-sys.matlab Hi all, What's the best way to write the following logic in Matlab? It's essentially a state machine. The input is a data stream of real numbers; and the output is another data stream, of binary 0-1 numb... Luna

how do I rapidly "freeze" all the links in Excel sheets? 12 168 (9/26/2010 9:24:14 PM) comp.soft-sys.matlab Hi all, I currently save copy of my Excel sheets every day, for historical records. However because some of the cells are connected to live data sources, and other cells are linked to other time-varying... lunamoonmoon (258)