sortrows problem, i can't run my code file

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SHIN,LIN HO
SHIN,LIN HO 2018-2-28
评论： Walter Roberson 2018-8-13
Error using matlab.internal.math.sortrowsParseInputs>legacyParseCOL (line 106) Column sorting vector must contain integers with absolute value between 1 and the number of columns in the first argument.
Error in matlab.internal.math.sortrowsParseInputs (line 29) [col,colProvided] = legacyParseCOL(col,n,in2);
Error in sortrows (line 60) [col, nanflag, compareflag] = matlab.internal.math.sortrowsParseInputs(A,varargin{:});
Error in Final02 (line 37) Bigsize_sortcharactor=sortrows(Bigsize,11); >>
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Steven Lord
Steven Lord 2018-8-12
Stef, please show your exact call to sortrows.
Walter Roberson
Walter Roberson 2018-8-13
Your call to sortrows() is requesting sorting on column 11, but you only have two columns.

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回答（1 个）

Jos (10584)
Jos (10584) 2018-8-13
This replicates when the input to sortrows is not what you think it is.
A = [3 ; 1 ; 2] % 1 column only
sortrows(A, 2) % -> errors as observed above
You could (should?) check the dimensions of A first using
size(A,2)
@Mathworks: why don't you make this error less cryptic by stating (more) explicitly that the first argument has less columns than the column sorting vector (especially when this is already a positive integer).

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