Saving a Script from another script

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Sam Bottum
Sam Bottum 2023-12-14
回答： Image Analyst 2023-12-14
Hello - I am using an input script to run a main simulation file on a computing cluster. For this, I need to change one or two parameters in the input script before uploading it and running it again. This requires me to manually generate hundreds of input files. Is there a way to write a third script that changes 1-2 lines of code in the input script and then saves it as a new file?
I have attached my code - I need to change the diameter and concentration parameters and then resave each file as of now but it's quite slow as you can imagine...
% OPTIONS FOR RUN
main = 1;
scatter = 0;
eff_path = 0;
tic
load 'Si_n_complex' %loads complex Si refractive index data (lambda = 250-1000 nm)
global lambda diameter NW_conc bound_x bound_y bound_z n0 n1_all N_photon N_steps
n0=1.33; %Refractive index of surrounnding medium
n1_all=complex(Si_n(2,:),Si_k(2,:)); %Complex refractive index of dielectric
NW_num = 1e8; %NWs per mL
NW_conc = NW_num/1000; %putting conc into mm^-3 for script
diameter = 200;
bound_x = [0 10]; % sets -/+ x boundaries
bound_y = [-5 5]; % sets -/+ y boundaries
bound_z = [-22.5 22.5]; % sets -/+ z boundaries
if main == 1
lambda_all = [400e-9:1e-9:1200e-9];
N_photon_all = zeros(length(lambda_all),1);
counter_abs_all = zeros(length(lambda_all),1);
counter_side_all = zeros(length(lambda_all),1);
counter_back_all = zeros(length(lambda_all),1);
counter_trans_all = zeros(length(lambda_all),1);
N_photon = 1000; %number of photons to walk
N_steps = 10000; % maximum number of steps in walk
for qq = 1:length(lambda_all)
try
lambda = lambda_all(qq);
MC_main_v17
N_photon_all(qq) = N_photon;
counter_abs_all(qq) = counter_abs;
counter_back_all(qq) = counter_back;
counter_side_all(qq) = counter_side_exit;
counter_trans_all(qq) = counter_exit;
catch
break
end
end
file_name = mfilename + ".csv";
Q = [transpose(lambda_all),N_photon_all,counter_abs_all,counter_side_all,counter_back_all,counter_trans_all];
writematrix(Q,file_name)
elseif scatter == 1
lambda = [655e-9];
N_photon = 1000000; %number of photons to walk
N_steps = 200; % maximum number of steps in walk
MC_main_v17
file_name = mfilename;
Q1 = [transpose(side_exit_position_x),transpose(side_exit_position_y),];
Q2 = [transpose(back_exit_position_x),transpose(back_exit_position_y)];
Q3 = [transpose(trans_exit_position_x),transpose(trans_exit_position_y)];
writematrix(Q1,file_name+"_side");
writematrix(Q2,file_name+"_back");
writematrix(Q3,file_name+"_trans");
elseif eff_path == 1
lambda_all = [400e-9:10e-9:1200e-9];
N_photon_all = zeros(length(lambda_all),1);
counter_abs_all = zeros(length(lambda_all),1);
counter_side_all = zeros(length(lambda_all),1);
counter_back_all = zeros(length(lambda_all),1);
counter_trans_all = zeros(length(lambda_all),1);
eff_path_all = zeros(length(lambda_all),1);
N_photon = 1000; %number of photons to walk
N_steps = 10000; % maximum number of steps in walk
for qq = 1:length(lambda_all)
try
lambda = lambda_all(qq);
MC_main_v17
N_photon_all(qq) = N_photon;
counter_abs_all(qq) = counter_abs;
counter_back_all(qq) = counter_back;
counter_side_all(qq) = counter_side_exit;
counter_trans_all(qq) = counter_exit;
eff_path_all(qq) = mean(eff_path);
catch
break
end
end
file_name = mfilename + ".csv";
Q = [transpose(lambda_all),N_photon_all,counter_abs_all,counter_side_all,counter_back_all,counter_trans_all,eff_path_all];
writematrix(Q,file_name)
else
error('Run options not specified')
end
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回答（2 个）

ScottB
ScottB 2023-12-14
编辑：ScottB 2023-12-14
You can write or modify a script from script.
I've done it using fopen, fprint, and fclose commands. The example in the documentation for fprintf is pretty helpful.
Image Analyst
Image Analyst 2023-12-14
What you should do is to put all of your parameters that you want to vary in a text file or a workbook. Then read it in with something like readmatrix into an array. Then have a loop where you call all the code that needs to be run using the next row of data as parameters. For example
data = readmatrix(filename); % Read in 500 by 2 list of numbers.
% Get parameters from the columns of data.
var1 = data(:, 1); % Column 1
var2 = data(:, 2); % Column 2
for k = 1 : numel(var1)
thisVar1 = var1(k);
thisVar2 = var2(k);
% Now we have the parameters we need so run the
% actual code that does the computations with thisVar1 and thisVar2.
end

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