Read in matrix for multiple steps while changing string
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Alexandra Vest
on 24 May 2023
Commented: Steven Lord
on 24 May 2023
Hi, I want to read in multiple temperature files at different time steps. For instance I have array:
time = [0, 10, 20];
And I need to read in:
temp0 = "temperature_0.txt"
temp1 = "temperature_10.txt"
temp2 = "temperature_20.txt"
So I can compile them all into:
temp = [temp0;temp1;temp2]
How can I handle changing the string names "temp0" and "temperature_0.txt" based on the value in time? I know I will have a for loop such as follows, but I am unsure of how to make the variable input into the name as a string
for k = 1:length(time)
...
end
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Accepted Answer
Steven Lord
on 24 May 2023
time = [0, 10, 20];
files = "temperature_" + time + ".txt"
Now you could iterate over the elements of the files string array.
3 Comments
Steven Lord
on 24 May 2023
If the only digits in the names are in the numbers you want to extract, use digitsPattern to extract that data from the string array.
time = [0, 10, 20];
files = "temperature_" + time + ".txt"
numbersAsText = extract(files, digitsPattern)
numbers = double(numbersAsText)
isequal(time, numbers)
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