textscan

问题 When I try to use headerlines with textscan to skip the first line of the text file, all of my data cells are stored as empty. fid = fopen('RYGB.txt'); A = textscan(fid, '%s %s %s %f', 'HeaderLines', '1'); fclose(fid); This code gives 1x4 Cell [] [] [] [] Without the headerlines part and without a first line that needs to be skipped in the text file, the data is read in with no problem. It creates a 1x4 cell with data cells containing all of the information from the text file in columns. What

问题 When I try to use headerlines with textscan to skip the first line of the text file, all of my data cells are stored as empty. fid = fopen('RYGB.txt'); A = textscan(fid, '%s %s %s %f', 'HeaderLines', '1'); fclose(fid); This code gives 1x4 Cell [] [] [] [] Without the headerlines part and without a first line that needs to be skipped in the text file, the data is read in with no problem. It creates a 1x4 cell with data cells containing all of the information from the text file in columns. What

问题 When I try to use headerlines with textscan to skip the first line of the text file, all of my data cells are stored as empty. fid = fopen('RYGB.txt'); A = textscan(fid, '%s %s %s %f', 'HeaderLines', '1'); fclose(fid); This code gives 1x4 Cell [] [] [] [] Without the headerlines part and without a first line that needs to be skipped in the text file, the data is read in with no problem. It creates a 1x4 cell with data cells containing all of the information from the text file in columns. What

问题 When I try to use headerlines with textscan to skip the first line of the text file, all of my data cells are stored as empty. fid = fopen('RYGB.txt'); A = textscan(fid, '%s %s %s %f', 'HeaderLines', '1'); fclose(fid); This code gives 1x4 Cell [] [] [] [] Without the headerlines part and without a first line that needs to be skipped in the text file, the data is read in with no problem. It creates a 1x4 cell with data cells containing all of the information from the text file in columns. What

问题 I want to load a set of data that contains variables type string and float. But when I use textscan in octave, my data doesn't load. I got matrix 1x6 (i have 6 features), but in this matrix I got cells that contains nothing(cells that are 0x1). my code: filename='data1.txt'; fileID = fopen(filename,'r'); data = textscan(fileID,'%f %s %s %f %f %s','Delimiter',','); fclose(fileID); when I for example try data(1): >> data(1) ans = { [1,1] = [](0x1) } >> there is it there is my set Also my file

问题 I have a large dataset split into 5 files (each has 15000 attributes, first file contains header (attribute names) and 9999 records, and the other 4 contain 10000 records). Using textscan, I have created 5 cell arrays which have to be merged and don't know whether this approach is appropriate or it would be better to directly read all 5 files into single cell array. Anyway I would be thankful if anyone of you could show the way to merge several cell arrays into single cell array or read

问题 Suppose I have the following string: s = 'Foo 1.000 3.000 3.554' I would like to read it with the textscan function as follows. [name x y z] = textscan(s, '%s %f %f %f') However, when I do this, I always get the Too many output arguments error. I think it has to do with the fact that textscan outputs a cell array, but I could not discover how to work around this problem and the desired effect. 回答1: You'll need two lines to do what you want. First you get the desired valued into a dummy

问题 Using textscan I'm trying to read a file that has comma separated data in the following format: "1234","24.0","Hello, my name is Joe" "4567","25,0","Hi, I'm Jane" The non-delimiter comma in the third field are problematic and I ultimately don't want the "" around the pieces of data. I've tried the following, but it leaves a " on the end of the last field. I can remove this any number of ways, but I find it quite annoying and am sure there is a smarter way. Any ideas? textscan(fileId, '"%s %s

问题 I have a data file containing 100 lines with the following format 0,device1,3 1,device2,33 2,device3,3 3,device4,34 ... 99,device100,36 Now I wish to read them into a 100x3 cell array in MATLAB. I did the following: allData = textscan(fID,'%s %s %f', 'delimiter', ','); Then, I noticed that allData is a 1x3 cell array with each item being another 100x1 cell array. (The first two columns are string-type cell arrays, whereas the third column is double-type cell array) In other words, the reading

问题 I have a .txt file with rows consisting of three elements, a word and two numbers, separated by commas. For example: a,142,5 aa,3,0 abb,5,0 ability,3,0 about,2,0 I want to read the file and put the words in one variable, the first numbers in another, and the second numbers in another but I am having trouble with textscan . This is what I have so far: File = [LOCAL_DIR 'filetoread.txt']; FID_File = fopen(File,'r'); [words,var1,var2] = textscan(File,'%s %f %f','Delimiter',','); fclose(FID_File)