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Subplot

subplot( numRows, numColumns, index)
subplot(    2   ,     3     ,   id
subplot(    2   ,     3     ,   )  % index id=4 refers to first subplot in second line, see below  


How to get subplot indexes for two loops over figure columns and rows?

Example 2 x 3 subplots, by using sub2ind

numRows    = 2
numColumns = 3

for r=1:numRows
  for c=1:numColumns

    id = sub2ind([numColumns,numRows],c,r)
    subplot(numRows, numColumns, id)

    title(sprintf('Subplot %d',id))
    xlabel(sprintf('Column %d',c))
    ylabel(sprintf('Row %d',r))
    % plot something ...

  end
end






Note, while the subplot index goes horizontally (line by line), sub2ind refers to matrix-index which goes vertically (column by column). Thus, we need to switch column and row indexes.