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Use variable as placeholder in a path

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Reuben Addison
Reuben Addison 2023-2-8
编辑： VBBV 2023-2-8
I am trying to use a variable as a placeholder in a path but I keep getting an error.
data = dlmread(['/Users/reubs/Documents/Data/PO1/' cell2mat(filenames(trialnumber))],'',1,0);
I want to rewrite this as
path1 = '/Users/reubenaddison/Documents/Data/PO1/';
data = dlmread([fullfile(path1) cell2mat(filenames(trialnumber))],'',1;0);
but I get
"Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters."

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采纳的回答

VBBV
VBBV 2023-2-8
编辑：VBBV 2023-2-8
path1 = '/Users/reubenaddison/Documents/Data/PO1/';
data = dlmread(fullfile(path1, num2str(cell2mat(filenames(trialnumber)))),'',1,0);
% ^ convert num to str in fullfile ^^ use a , in place of ;
Matlab recommends to use readmatrix than using dlmread. Read dlmread

更多回答（1 个）

Image Analyst
Image Analyst 2023-2-8
Try this:
folder = '/Users/reubenaddison/Documents/Data/PO1/';
fullFileName = fullfile(folder, filenames{trialnumber}) % Use braces!
data = dlmread(fullFileName);
See the FAQ to learn when to use parentheses, braces, and brackets:
https://matlab.fandom.com/wiki/FAQ#What_is_a_cell_array?

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