How can read .csv file in matlab

8 vues (au cours des 30 derniers jours)
mulus
mulus le 21 Sep 2015
Commenté : Sajid Afaque le 16 Juin 2020
Hi,
I have a .csv file which contains both string and numbers , the first raw contains columns name which is string and the rest of raw's contains integer value . my file look like
Id age sex subject
12 21 1 3
I want to read it and store it as a cell array for counting the frequent itemsets . how can I do that . please help me.
Thank you.
  1 commentaire
Renato Agurto
Renato Agurto le 21 Sep 2015
Hi. Can you open your csv file with a text editor and see which separator is used for the values: ' ,' or ' ;' ?

Connectez-vous pour commenter.

Réponses (2)

Yogesh Badhe
Yogesh Badhe le 21 Sep 2015
If you have MATLAB R2014a or later version you have "Import data" tab on main window under Home tab. Just click on that, browse to your desired file and click import. Thats it.
  1 commentaire
mulus
mulus le 21 Sep 2015
Hello JPro,
I am using MATLAB 7.8.0 R2009a. I have frequent.m file , It contains a function function [frequentItemsets]= frequent(Transaction,Support) I want to read .csv file which contains transactions and store it as a cell array to count the occurrence frequency of each item.
thanks .

Connectez-vous pour commenter.


Walter Roberson
Walter Roberson le 21 Sep 2015
If you are using a new enough version of MATLAB (might require R2015b), then csvread() should work if you pass it parameters that tell it to skip the first line
Otherwise,
fid = fopen('YourFile.csv','rt');
datacell = textscan(fid, '%d%d%d%d', 'HeaderLines',1,'Delimiter',',','CollectData', 1);
fclose(fid);
now datacell{1} is your numeric matrix
  3 commentaires
Walter Roberson
Walter Roberson le 21 Sep 2015
Replace YourFile.csv with the actual name of your file.
Sajid Afaque
Sajid Afaque le 16 Juin 2020
what if i have variable numer of columns and rows

Connectez-vous pour commenter.

Community Treasure Hunt

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

Start Hunting!

Translated by