Matlab function for reading formatted data.
textscan is a Matlab function for reading formatted data from text file or string.
For more details, see the Matlab's official doc.
Questions tagged [textscan]
222 questions
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2 answers
How do i read text file using command textscan
I have a rather large text file (over 2050 lines x 4080 columns) that has the following format:
#1 #2 #3...........#10 #1 #2 #3......
Time 21:22:10 21:23:56 21:23:07....06:19:11 06:21:00 06:21:23 06:23:01......
15 …
user3137771
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- 3
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2 answers
How to extract time, lat, lon, from a filename using textscan in matlab
I am sorry, but I am really hopeless here using textscan and the format. I kept trying various way of getting the correct format to extract the time, lat, and lon from the following text;
filename =…
sophie
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Read data row wise from a file(.txt or .dat) in matlab
I want to read a row with numeric data from a file which contains one text line and few lines with numeric data.
I have tried this by using fopen and textscan(as all string value) command in MATLAB. After loading all the data and trying to do any…
0
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2 answers
MATLAB READING FILE
i am having trouble reading the file,
basically, i want to somehow get rid of the unnecessary text and just print out a matrix involving only the numbers.
1 1 -1 1 1 -1 -1 1 1 1 -1 1
1 -1 1 -1 -1 …
George Randall
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Replace a line containing a special character with nan using textscan in matlab
I am trying to read a file using textscan containing following lines
1.0 2.0 3.0 ? 6.0 5.0
11.0 12.0 13.0 15.0 16.0 15.0
21.0 22.0 23.0 25.0 26.0 25.0
31.0 32.0 33.0 ? 36.0 35.0
How can I replace the question marks with nan?
Rachel
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1 answer
Matlab Text File Delimiter and Header Readin
I have a file that looks like this:
RD|Action Code|State Code|County Code|Site ID|Parameter|POC|Sample Duration|Unit|Method|Date|Start Time|Sample Value|Null Data Code|Sampling Frequency|Monitor Protocol (MP) ID|Qualifier - 1|Qualifier - 2|Qualifier…
SugaKookie
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MATLAB - Creating a repeating textscan process which runs until an entire file has been dealt with
I'll start out by saying that I'm something of a Matlab newbie so I apologise if this question has been asked before but I have been unable to find the answer I need.
I'm working on a code to process some large Rainfall Radar files (5-20GB), I have…
IdleSam
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0
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2 answers
Matlab - Help using text scan, how to ignore comments and header columns?
I need help using text scan. I am trying to read data that has the following format:
# ---------------------------------- WARNING ----------------------------------------
# The data you have obtained from this automated U.S. Geological Survey…
Hooplator15
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1 answer
Use textscan in Matlab to output data
I've got a large text file with some headers and numerical data. I want to ignore the header lines and specifically output the data in columns 2 and 4.
Example data
[headers]
line1
line2
line3
[data]
1 2 3 4
5 6 7 8
9 10 11 12
I've…
user2733156
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1 answer
textscan stops reading after 1 line
I'm using the following command to read a csv file:
fid=fopen('test.csv');
scannedData = textscan(fid, '%4.0u%2.0u%2.0u%2.0u%2.0u%2.0u,%u,%u,%q,%q,%f,%f,%.2f,%u','whitespace','"');
fclose(fid);
The problem is that textscan doesn't read the value…
user2618054
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0
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0 answers
Reading a txt file of unknown length and mixed content
I am trying to have Matlab read a .unv file (which is seems to open just fine and treats as a .txt) and gather data. An example from the first part of the file is as follows:
-1
151
bricktest.unv
CUBIT version 14.0 revised 2013-06-01 09:06:37…
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votes
1 answer
How do I read a text file with variable hex value columns in matlab?
I have a text file that i need to read in that has different number of columns of hex data depending on the row. I am trying to read it all in and then manipulate the hex, but I can seem to find a good way to read the file in. I want to read in the…
user2540100
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votes
1 answer
Read a specific part of a txt file for each line
I have a txt file in which lots of information is given.
I want to read and store just 'status' part.
Example:
id........username...... status......language .......image
11111 abcdefg Man Utd won for the second time ENG img1244
11112 abcdaaa Man…
Ender Tinkir
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1 answer
MatLab using "for" and "if" for string
I have text.txt which contains words and numbers.
1. I want to use "for" and "if" for cells or matrices which contain string.
d = reshape(textread('text.txt','%s','delimiter','\t'),2,2)'
if h(1,1)=='apple'
k=1
end
This didn't work.
2. I want…
user1849133
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2 answers
How do I read several lines in Matlab with textscan?
I used this :
weights=fopen('indices.txt');
weights=textscan(weights, '%d %d %d %d %d %d %d')
but this only reads the first line of my file.
my file looks like this :
0 90 100 5 0 0 0 (class)
19 5 0 0 0 0 0 (class2)
5 5 0 0 0 0 0 (class3)
-10 -5 0…
Lay
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