How to read string data from a csv file?

Hello.. I have a csv data file with 6columns. First column is string type and others are numeric. I don't know why I cant read data with 'csvread'. I saved csv file as xls then used xlsread. It can read my data but it's not reading 1st column may be because its a string. 1st column is like yyyy-mm-ddThh:mm:ss Is there any way to read 1st column and then split it into two columns, one for date and other for time? how to read this data using csvread as I don want to convert it to xls. Thanks

[Sai Ramya]

Don't mention any reading format like 'rb' ....it will read string type....use names= column names while creating a Excel sheet...

Answer 1

[KSSV]

Use xlsread. Read about it.

[Kavita Navria]

Sir, I am using xlsread but its skipping 1st column. and I don't want to use xlsread if its possible with csvread.

[KSSV]

[num,txt,raw] = xlsread('myfile')

This read entire data.....

[Kavita Navria]

Thank you sir..This is reading my data. num= N x 6 (type double, skipped 1st column), raw= N x 7(type cell, all columns), txt= N x 7(type cell, 1st column is complete while for others its just showing column headings ) How may I split date and time from 'cell' type. I am using R2013a. I tried using strsplit but its not supporting cell2str, cell2table.

Answer 2

[Guillaume]

Even simpler than xlsread is to use readtable which should be able to figure out the file format on its own.

data = readtable('yourfile.csv');

In particular, readtable should automatically detect that the first column is a datetime and decode it properly. If not it's trivial to convert it:

data(:, 1) = datetime(data(:, 1), 'InputFormat', 'yyyy-MM-ddTHH:mm:ss');  %or similar

[Guodong Cui]

readable is simple & useful! It works for me. Thank you!

Answer 3

[Md Khaled Ben Islam]

For dealing with tabular CSV formatted data, readtable seems more flexible than xlsread.

[CHIA HUNG MOU]

Yes. readtable is good. For your reference:

% data: https://chris.userweb.mwn.de/book/pizza_delivery.csv

fn = fullfile('pizza_delivery.csv');

data = readtable(fn);

% time

y = cell2mat(table2cell(data(:, 3)));

% interception

x1 = ones(1, size(y,1));

% binary variable (so called dummy variable)

x2 = zeros(1, size(y,1));

x2_ = (table2cell(data(:, 4)));