Double vs. Cell "Undefined function 'plus' for input arguments of type 'cell' "

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Sam136
Sam136 2015-6-30
评论： Star Strider 2015-6-30
In my code, I have two variables (inp.W{9} & inp.W{10}) which seems to be double (when I remove semicolon, this is shown in command Window: ans = [1x10 double]). However when I try to add these two variables, I get this error:
Undefined function 'plus' for input arguments of type 'cell'.
Error in truck (line 21) inp.W{9}+inp.W{10}

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回答（2 个）

Star Strider
Star Strider 2015-6-30
Without having them to experiment with and provide more specific code, I would use cell2mat to convert them first:
W9 = cell2mat(inp.W{9});
W10 = cell2mat(inp.W{10});
Result = W9 + W10;
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Sam136
Sam136 2015-6-30
I'd like to give more information to get better help, but I really don't know how to copy a long code with more than 2000 lines here.
Star Strider
Star Strider 2015-6-30
It’s not code but your data that we need to determine your problem.
First, save your ‘inp’ structure as a .mat file, then attach it using the ‘paperclip’ icon.

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Walter Roberson
Walter Roberson 2015-6-30
When you see
[1x10 double]
instead of numbers, then you are looking at a cell rather than a numeric array. Use
inp.W{9}{1}+inp.W{10}{1}

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