I want help to delete parameters from text file with matlab coding

Question

Ashwini More 2021-3-4

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/762601-i-want-help-to-delete-parameters-from-text-file-with-matlab-coding

评论： Raheel Ejaz 2021-3-8

trial_1.txt

I have requirement to delete some specific parameters from text file and generate new text file with changes. this should be done with matlab coding.

text file is attached herewith.

Following parameters should be deleted from text file:

Filter_Reset
GlobalDefault
Enable
High_Threshold
Low_Threshold

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Answer 1

Raheel Ejaz 2021-3-4

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/762601-i-want-help-to-delete-parameters-from-text-file-with-matlab-coding#answer_638916

try.txt

clear;clc;

fileID = fopen('try.txt','r');

S = textscan(fileID,'%s');

fclose(fileID);

S2=[S{:}];

param={'Filter_Reset','GlobalDefault','Enable','High_Threshold','Low_Threshold'};

param_i=zeros(1,length(param));

for i=1:length(param)

param_i(i)=find(~cellfun(@isempty,strfind(S2,param{1,i})));

S2(param_i(i))=[];

end

delete('try.txt')

fileID=fopen('try.txt','at');

for j=1:length(S2)

fprintf(fileID,'%s\n',S2{j,1});

end

fclose(fileID);

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Raheel Ejaz 2021-3-8

clear;clc;

fileID = fopen('try.txt','r');

S = textscan(fileID,'%s');

fclose(fileID);

S2=[S{:}];

ter='y';

while strcmpi(ter,'y')

param={input('Parameter to delete: ','s')};

param_i=find(~cellfun(@isempty,strfind(S2,param{1})));

S2(param_i)=[];

ter=input('Do You want to delete more? Press Y to Continue and N to terminate: ','s');

end

delete('try.txt')

fileID=fopen('try.txt','at');

for j=1:length(S2)

fprintf(fileID,'%s\n',S2{j,1});

end

fclose(fileID);

Raheel Ejaz 2021-3-8

You can have input from user in this code.... for second part if you want to delete the value of parameter only, You can get the index number of parameter from this line "param_i=find(~cellfun(@isempty,strfind(S2,param{1})));" then you can remove its value.

e.g(Enable = 1, 'If "Enable" is at index # 20 then "=" would be at index# 21 and "1" would be at index# 22' , then code next line become "S2(param_i+2)=[];") . It will delete only "1"

Hopefully I am able to solve the issue.

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