Printing lines of text from cell array?

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Tyler Bodnarik
Tyler Bodnarik 2020-11-16
评论： Star Strider 2020-11-17
Suppose I had a simple cell array :
D = {[1 2 3],[4 5 6 7 8 9],[10 11 12 13 14 15 16 17 18 19 20]}
How could I print each line (one cell per line) into the command window, one character at a time?
I know fprintf('\n') needs to be used to jump to the next line.
Appreciate any advice.

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Star Strider
Star Strider 2020-11-16
One approach:
D = {[1 2 3],[4 5 6 7 8 9],[10 11 12 13 14 15 16 17 18 19 20]}
for k = 1:numel(D)
fprintf(1, [repmat('%d ',1,numel(D{k})) '\n'],D{k})
end
.
  2 个评论
Tyler Bodnarik
Tyler Bodnarik 2020-11-17
Would that output one character at a time? I tried it but couldn't tell. I may have to use pause somewhere.
Star Strider
Star Strider 2020-11-17
It outputs a line at a time.
To output one character at a time, a second loop that loops through each line would be necessary:
D = {[1 2 3],[4 5 6 7 8 9],[10 11 12 13 14 15 16 17 18 19 20]}
for k1 = 1:numel(D)
for k2 = 1:numel(D{k1})
fprintf(1, '%d ',D{k1}(1,k2))
end
fprintf('\n')
end
.

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