Autorun function in guide

2016 11 27
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更新时间：2016 11 29
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Hi all,
i have a small problem i generated an import function for the matfiles i have. When i run the function seperatly every thing is fine but i want that the function import the data when i run the main code
function importfile(Monate,Uhrzeit)
%IMPORTFILE(FILETOREAD1)
% Imports data from the specified file
% FILETOREAD1: file to read
% Auto-generated by MATLAB on 27-Nov-2016 20:49:08
% Import the file
newData1 = load('-mat', 'Monate.mat');
% Create new variables in the base workspace from those fields.
vars = fieldnames(newData1);
for i = 1:length(vars)
assignin('base', vars{i}, newData1.(vars{i}));
end
% Import the file
newData2 = load('-mat', 'Uhrzeit.mat');
% Create new variables in the base workspace from those fields.
vars = fieldnames(newData2);
for i = 1:length(vars)
assignin('base', vars{i}, newData2.(vars{i}));
end

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Walter Roberson
Walter Roberson 2016-11-27
Your function is ignoring the inputs ? Should the inputs be the two file names to import?
Bianca Brusis
Bianca Brusis 2016-11-27
i get the result i wanted i used run importfile in the maincoude opening function so the imporftile.m get triggert and import my data i need:)

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 采纳的回答

Walter Roberson
Walter Roberson 2016-11-27

1 个投票

That code imports data into the base workspace. If you invoke this from a different function, you would need to fetch the result from the base workspace.
However, this code "poofs" variables into existence in the base workspace, and you are asking to instead have the variables poofed into existence in the function you are running. That is not a good idea. You should instead skip the function and use
monate_struct = load('Monate.mat');
uhrzeit_struct = load('Uhrzeit.mat');
and then reference fields of monate_struct and uhrzeit_struct . This is safer, more efficient, and easier to debug.

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Bianca Brusis
Bianca Brusis 2016-11-29
编辑：Bianca Brusis 2016-11-29
So when i use this i can use every data inside the matfiles? Example: Every month is stored in this Matfile seperatly Januar Februar and so on and i want to get data from januar only from file monate.mat :)
for H = Januar(:,:)
E=Pmpp* f *H *PR * Nw *W
When I go into the debugg modus and implement this in the openingfcn I can see the struct will be loaded but if i set a next debug point to a another point i see the data will be lost? Or the data still exist and the debug modus only load the data which will be generated/used in this function?
Walter Roberson
Walter Roberson 2016-11-29
load() always loads into the current workspace. If you are inside a function then it is the workspace of the function, and the values will disappear when the function returns unless you save the values.
http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.28s.29.3F
Bianca Brusis
Bianca Brusis 2016-11-29
Thank you for your big help. I have done everything without your last tip (just changed the position of some variables). It seems not so good but for the first result the programm do what it should do. Now i will work on it to make a clean code! A Big THANKS!

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