Re: Exporting a List of Tables with different Lengths to a tabulator

*To*: mathgroup at smc.vnet.net*Subject*: [mg110644] Re: Exporting a List of Tables with different Lengths to a tabulator*From*: "Sjoerd C. de Vries" <sjoerd.c.devries at gmail.com>*Date*: Wed, 30 Jun 2010 01:50:12 -0400 (EDT)*References*: <i0cor7$bug$1@smc.vnet.net>

Hi Hemke, My solution uses PadRight to make all matrices have the same lengths, and ArrayFlatten to combine all matrices in a single rectangular one. Some example matrices: m = {{1, 2, 3}, {4, 5, 6}}; n = {{7, 8, 9}, {1, 2, 3}, {4, 5, 6}}; o = {{2, 4, 6}, {1, 3, 5}, {9, 7, 5}, {8, 6, 4}}; listA = {m, n, o}; The code: mostRows = Max[Length /@ listA]; numColumns = Length[listA[[1, 1]]]; (*assumes, as given, that all matrices have the same number of columns *) newListA = ArrayFlatten[{PadRight[#, {mostRows, numColumns}, Null] & /@ listA}]; Export["C:\\Documents and Settings\\Sjoerd\\Desktop\\New Text \ Document.tsv", newListA, "TSV"] (The "TSV" part is superfluous if the filename already has this as extension) Cheers -- Sjoerd On Jun 29, 2:27 pm, hemke <h.mae... at gmail.com> wrote: > Hi, > > I am trying to export some data I imported and then manipulated with > mathematica. I have a List of several Tables, i.e. > > ListA={TableA, TableB, TableC, ...} > > A typical Table looks like this: > > TableA={{1,2},{4,5},...}. > > The Tables in ListA all have the same number of columns but differing > number of rows. Now, I want to export these Tables into one tabulator > separated file with the same structure, i.e. line N in the output file > should contain the elements in row N of each Table, or in other words I > want the following: > > TableA[[1,1]] TableA[[1,2]] TableB[[1,1]] TableB[[1,2]] .= .. > TableA[[2,1]] TableA[[2,2]] TableB[[2,1]] TableB[[2,2]] .= .. > ... ... ... = ... > TableA[[M-1,1]] TableA[[M-1,2]] TableB[[P,1]] TableB[[P,2]] ... > TableA[[M,1]] TableA[[M,2]] = ... > > Here I chose (as an example), Length[TableA]=M and Length[TableB]=P w= ith > M>P. > > I tried it with Export["myfile.dat", ListA] but it does not produce the > desired output, instead it yields: > > {TableA[[1,1]],TableA[[1,2]]} {TableA[[2,1]],TableA[[2,2]]} ... > {TableB[[1,1]],TableB[[1,2]]} {TableB[[2,1]],TableB[[2,2]]} ... > ... ... > > (In the above, TableX[[i,j]] represents a number in the corresponding > element of a table, and not the text "TableX[[i,j]]"... ;) ) > > Ok, I hope I explained the problem sufficiently. Probably there is a > simple solution but I just don't see it. > > Please help! Thanks! > > Hemke