Reading a text file without headers
4 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Damith
am 21 Mai 2014
Bearbeitet: per isakson
am 22 Mai 2014
Hi,
I have a text file without headers and starting as shown below with spacing. I have 3652500 rows in the text file. How can I read this text file using MATLAB.
1 1 1 1 0.00 55. 36. 295.
Thanks in advance,
0 Kommentare
Akzeptierte Antwort
per isakson
am 22 Mai 2014
Bearbeitet: per isakson
am 22 Mai 2014
If all rows have the same number of columns
dlmread, Read ASCII-delimited file of numeric data into matrix
Syntax
M = dlmread(filename)
M = dlmread(filename, delimiter)
M = dlmread(filename, delimiter, R,C)
M = dlmread(filename, delimiter, range)
.
Example in response to comment:
This works fine here (R2013a)
filespec = 'h:\m\cssm\sample\sample.txt';
num = dlmread( filespec );
whos num
returns
Name Size Bytes Class Attributes
num 20x8 1280 double
Doc says
When dlmread infers the delimiter from the formatting of the file, it
treats repeated white spaces as a single delimiter. By contrast, if you
specify a delimiter, dlmread treats any repeated delimiter character as
a separate delimiter.
5 Kommentare
per isakson
am 22 Mai 2014
Bearbeitet: per isakson
am 22 Mai 2014
See the example, which I added to the answer.
sample.zip, which you attached, contains a file named sample.txt. This file is not tab delimited, but space delimited.
I failed to reproduce your error.
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Interactive Control and Callbacks finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!