How to make a loop through *.asc data

Question

Ante 2023-7-4

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1991503-how-to-make-a-loop-through-asc-data

回答： Aditya Singh 2023-7-5

I am not so skillfull in matlab, and need your help. I found how to read data form the *.asc file, and now, based on these data I should to make loop through thair rows. How can I define that my loop goes from the first up till the late read row from the *.asc data, and how to write this expression in matlab.

You can see the problem below...

clc
clear all
close all
[filename1 pathname1]=uigetfile({'*.asc'},'file selector')
fullpathname1=strcat(pathname1,filename1)
text1=textread(fullpathname1);
%g=texread('Dfree1.txt) % this is the syntax
t=text1(:,1);
w1=text1(:,2);
w2=text1(:,3);
w3=text1(:,4);
wm=text1(:,5);
temp_out=text1(:,6);
temp_spec=text1(:,7);
DMS=text1(:,8);
s=(w2+w3)/2-w1;
for ii=1:N
    dW(ii)=0.5*(text1(ii-1,8)-text1(ii,8))*(text1(ii-1,5)+text1(ii,5))
end

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Answer 1

Aditya Singh 2023-7-5

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1991503-how-to-make-a-loop-through-asc-data#answer_1267108

在 MATLAB Online 中打开

Hi Ante,

To my understanding you want to read a .asc file and iterate through the data. As the asc files contains character strings one can iterate through them and store into a cell array. In the code sample I iterate through the file one line at a time.

out  = textread('test.asc','%s', 'delimiter', '\n');
C = cell2mat(out);

That just reads the whole file into a string, reading one line at a time. My test.asc was a sample asc file found Example ASC file - IBM Documentation.

For more information you can refer:

how to read an .asc file into a matlab matrix - MATLAB Answers - MATLAB Central (mathworks.com)

Reading and Analysis of asc files... - MATLAB Answers - MATLAB Central (mathworks.com)

Hope it helps