Effacer les filtres
Effacer les filtres

Inaccurate results when writing xls through writetable

2 vues (au cours des 30 derniers jours)
Yazan
Yazan le 21 Mai 2022
Commenté : Yazan le 21 Mai 2022
Hello everyone.
I am using Matlab R2021b. I write then save .xls files from a table using writetable. After saving, I write again on the same file but without deleting the older version first. If I do so, I get strange results in some cases, e.g., the last cell gets duplicated, some characters are added to some cells. If I delete the older version before saving the new one, I have no issues. Is this a known issue?
  2 commentaires
Image Analyst
Image Analyst le 21 Mai 2022
I've never noticed that. You're writing the very same array both times, right? Not a smaller one the second time, which would leave the existing cells that don't get written over? You're specifying the upper left cell the same both times, right, like 'A1'? Can you attach your data in a .mat file and attach the code that demonstrates what you think is the problem? Can you download the latest version (R2022a) and try it there also?
Yazan
Yazan le 21 Mai 2022
You guessed it. I was not setting "WriteMode" to "overwritesheet". Thank you.

Connectez-vous pour commenter.

Réponse acceptée

Voss
Voss le 21 Mai 2022
From the documentation for writetable:
  • If filename is the name of an existing spreadsheet file, then the writing function writes the data to the specified location, but does not overwrite any values outside the range of the input data.
Does that explain the behavior you are seeing?
  1 commentaire
Yazan
Yazan le 21 Mai 2022
It does indeed. Rechecked the documentation: the default value of "WriteMode" is "inplace" for xls, and not "overwritesheet", as I was assuming. Apparently, I was overwriting an existing table with one of one less row, which caused the impression that the last cell was getting duplicated. Appreciate the help.

Connectez-vous pour commenter.

Plus de réponses (0)

Produits


Version

R2021b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by