Reading first column of a .csv file

2015 8 29
4 个回答
回答已采纳
更新时间：2021 10 18
24 次查看（30 天）

0 个投票

Hi everyone, I'm having some difficulty getting the information I'm looking for extracted. I would like to pull everything from the first column from rows 2 to the end. When I use txtread I extract the entire document, I've tried a few other read functions however they produced errors. Any help would be greatly appreciated, I've attached the .csv file and the script producing the .csv file. Thanks in advanced and hope you all have a great weekend. Zack
fu=['https://raw.githubusercontent.com/datasets/s-and-p-500-companies/master/data/constituents-financials.csv'];
urlwrite(fu,'Symbols.csv')
symbols=textread('symbols.csv','%s');

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 采纳的回答

Star Strider
Star Strider 2015-8-30

1 个投票

I would use xlsread:
[~,symbols] = xlsread('Symbols.csv', 'A:A');
This imports a (497x1) cell of the symbols in Column A, plus the column header ‘Symbol’, so you may only want to use the last 496.

更多回答（3 个）

Walter Roberson
Walter Roberson 2015-8-30

0 个投票

fid = fopen('symbols.csv', 'rt');
datacell = textscan(fid, '%[^,]%*[^\n]', 'HeaderLines', 1);
fclose(fid);
symbols = datacell{1};
Zack Bayhan
Zack Bayhan 2015-8-30

0 个投票

Awesome thanks for the help once again, Star Strider! Worked like a charm, and was able to drop the header out so hopefully now I'll be able to use this data.
Sahil Negi
Sahil Negi 2021-10-18

0 个投票

You can use importdata as shown below:
symbols = importdata('Symbols.csv');
column_1 = symbols.data(:, 1);
This should get your first column without the header.

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