Mark Whirdy


Active since 2012

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Split matrix across the median
a = rand(5,10); b = repmat(median(a,1),10); c1 = a; c1(a<b) = NaN; c2 = a; c2(a>=b) = NaN; .... what you're lookin...

nästan 12 år ago | 0

Answered
Loading multiple files into the same database
In semi-pseudo code below My_array = []; % container for all file contents for i = 1:size(Name_File_Array) fid = fope...

nästan 12 år ago | 0

Answered
Convert an acceleration time graph, into a velocity time graph.
I'm not sure its a matlab issue as such but you'd need to know the starting velocity at least. If we assume its zero, then I thi...

nästan 12 år ago | 0

| accepted

Answered
Loading multiple files into the same database
Hi Bob Can you read the contents of all files into matlab in loop, vertically concatenating the cellarrays and perform a sing...

nästan 12 år ago | 0

Answered
computation for each date
doc xlsread doc movavg doc accumarray

nästan 12 år ago | 0

Answered
from cell array to numeric vector
MWDIData_pop(1,1:5) = {[3752373],[3876616],[4006236],[4140773],[4279524]}; % square brackets in a cellarray indicates that t...

nästan 12 år ago | 2

| accepted

Answered
from cell array to numeric vector
yearCellArray = {'2008';'2009';'2010'}; yearVector = cellfun(@str2double,yearCellArray);

nästan 12 år ago | 1

Answered
Can I use this formula??
not really a matlab question, google it

nästan 12 år ago | 1

Answered
How to vectorize a find
a temporary vector of row numbers, then use your vector-of-interest & a logicsl statement to index this row-number vector ...

nästan 12 år ago | 0

Answered
How can we achieve interfacing of two GUI's?
if you just put the name of gui2 inside the callback of the pushbutton of gui1, then gui2 does not open? gui1_mybutton_...

nästan 12 år ago | 0

Answered
How to store matrix values in a vector?
Hi Peter Finding it a little difficult to totally grasp what you want to do e.g. m is a 3d matrix & not a 2d one, right? M...

nästan 12 år ago | 0

| accepted

Answered
memory leak using activex to save multiple excel files
are you not closing the workbooks?

nästan 12 år ago | 0

Answered
remove numbers from a name
welcome to the frustrating world of regular expressions!! regexp(name,'[a-z]\w+','match') all the best, Mark

mer än 12 år ago | 2

Answered
Vectorize double loops with constraints on the indexes
Hi Anne-Claire I can make some progress in the vectorization here (code below) but there are a few issues. 1) The r=max(k-...

mer än 12 år ago | 0

Answered
How to overcome the error message in the script below -Matrix dimension error - due to different size array manipulation
Hi Jan The error I get is ??? Index exceeds matrix dimensions. Since PT_mj is a [3*4] matrix and we are trying to...

mer än 12 år ago | 0