Concatenate cell array of strings to a cell vector of strings
in [Matlab]
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From: Ulrich on 10 Jun 2010 09:02 NO, C has multiple rows! Names={'John' 'Smith';'Bob' 'Jones';'Sue' 'Brown'} Names = 'John' 'Smith' 'Bob' 'Jones' 'Sue' 'Brown' horzcat(Names{:}) JohnBobSueSmithJonesBrown that's not what I am looking for. Read my question. thx dpb <none(a)non.net> wrote in message <huqn3k$klk$1(a)news.eternal-september.org>... > Ulrich wrote: > ... > > > I have a variable cell array (n,m) of strings e.g.: > > C= 'ab' 'egh' 'zgr',..... > > ...... > > the result shoud be: > > > > D= 'abeghzgr.....' > > 'hlkdzg....' > > ....... > > ...... > > > > to me, shoud be 'horzcat',like D=horzcat(C). But does not work. > > Please post only a solution without loops > > Picky, aren't we... > > >> C= { 'ab' 'egh' 'zgr'}; > >> horzcat(C{:}) > ans = > abeghzgr > >> > > Dereference cell cotnents... > > --
From: dpb on 10 Jun 2010 09:03 Ulrich wrote: > NO, C has multiple rows! .... > that's not what I am looking for. Read my question. .... Use a loop... --
From: Oleg Komarov on 10 Jun 2010 09:36 dpb <none(a)non.net> wrote in message <huqnvi$irk$1(a)news.eternal-september.org>... > Ulrich wrote: > > NO, C has multiple rows! > ... > > > that's not what I am looking for. Read my question. > ... > > Use a loop... > > -- a = {'ab' 'egh' 'zgr' 'hlk' 'd' 'zg'}; sza = size(a); rowLen = cellfun('prodofsize',a); maxLen = max(rowLen(:)); numBlanks2Pad = maxLen-rowLen; a = reshape(arrayfun(@(x,y) [y{:} blanks(x)],numBlanks2Pad,a,'un',0).',1,[]); a = strrep(cellstr(reshape([a{:}].',[],sza(1)).'),' ','') a = 'abeghzgr' 'hlkdzg' I think I'm doing unnecessary transpose operations...but the result is correct... oleg
From: Ulrich on 10 Jun 2010 09:39 anyhow, thx dpd! It seams to me that Matlab is not able to perform that within one function call! However, can be that others are looking for a (fast) solution to find unique rows of a cell array of strings or single numbers, then the following code could be useful: function set_member=find_str_members(A_mat,max_members) if ~iscell(A_mat) A_mat=num2cell(A_mat); end A_cell=cellfun(@num2str, A_mat,'uni',0); A_cat=[]; for j=1:size(A_cell,2); A_cat=cellstr([char(A_cat) char(A_cell{:,j})]); end A_cat=strrep(A_cat,' ',''); [d1,c_members,v]=unique(A_cat); clear d1; if (c_members>max_members) set_member=[]; else set_member=v; end dpb <none(a)non.net> wrote in message <huqnvi$irk$1(a)news.eternal-september.org>... > Ulrich wrote: > > NO, C has multiple rows! > ... > > > that's not what I am looking for. Read my question. > ... > > Use a loop... > > --
From: Oleg Komarov on 10 Jun 2010 09:49
"Oleg Komarov" <oleg.komarovRemove.this(a)hotmail.it> wrote in message <huqpo4$bla$1(a)fred.mathworks.com>... > dpb <none(a)non.net> wrote in message <huqnvi$irk$1(a)news.eternal-september.org>... > > Ulrich wrote: > > > NO, C has multiple rows! > > ... > > > > > that's not what I am looking for. Read my question. > > ... > > > > Use a loop... > > > > -- > > a = {'ab' 'egh' 'zgr' > 'hlk' 'd' 'zg'}; > sza = size(a); > rowLen = cellfun('prodofsize',a); > maxLen = max(rowLen(:)); > numBlanks2Pad = maxLen-rowLen; > > a = reshape(arrayfun(@(x,y) [y{:} blanks(x)],numBlanks2Pad,a,'un',0).',1,[]); > a = strrep(cellstr(reshape([a{:}].',[],sza(1)).'),' ','') > > a = > 'abeghzgr' > 'hlkdzg' > > I think I'm doing unnecessary transpose operations...but the result is correct... > > oleg A simpler solution (to my opinion): cellstrhcat(a) ans = 'abeghzgr' 'hlkdzg' function Out = cellstrhcat(cellIn) % Num of rows numRows = size(cellIn,1); % Preallocate Out = cell(numRows ,1); % Loop for r = 1:numRows Out{r} = [cellIn{r,:}]; end end Oleg |