"The value on the right-hand side of the assignment has the wrong width." Error

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Claire Hollow 2020-6-1

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评论： Star Strider 2020-6-1

Hello! I have a very large table and I am trying to change every time it says ',,7' in column 10 to change the corresponding column 9 to 'NA'. As far as I know, this following code should work

idx=station001_eus{:,10}==(',,7');
station001_eus{idx,9}='NA';

except I keep getting the error

The value on the right-hand side of the assignment
has the wrong width. The assignment requires a
value whose width is 1. 

for the second line. Any ideas how to get past this? I can't find much on it. Thank you!

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Star Strider 2020-6-1

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I am not certain where the problem is in the two lines you posted.

Try this:

idx= strcmp(station001_eus{:,10}, ',,7');
station001_eus{idx,9}="NA";

The first uses strcmp to compare the strings, usually preferable to the equality test using ==. The second uses a string element (instead of a character array) for the replacement. They have properties similar to numerical elements, so might be appropriate here. (Another option, of course, might be setting it to NaN.)

I obviously can’t test this with your table, so I leave that to you to experiment with. I will help as I can if there are still problems.