How do I pass variable from one function to another

2022 1 16
1 个回答
回答已采纳
更新时间：2022 1 16
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0 个投票

Hi!
How can I make this code work? I can't seem to find a way to pass variable 'v' to a different local function.
Tahnk you!
function [v] = Popup(obj, handles , h_listbox)
parameters=detectImportOptions('Data.xlsx');
v = get(obj,'Value');
disp(v)
set(h_listbox,'String',datestr(readvars('Data.xlsx',parameters,'Sheet',v)))
end
function Listbox(obj,h_popupmenu ,h_8things, handles)
k = get(obj,'Value');
Data = (readmatrix("Data.xlsx","Range",'B2:X32','Sheet', v));
polarhistogram(Data(k,:),16)
end

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 采纳的回答

Voss
Voss 2022-1-16

0 个投票

How about this?
function [v] = Popup(obj, handles , h_listbox)
parameters=detectImportOptions('Data.xlsx');
v = get(obj,'Value');
disp(v)
set(h_listbox,'String',datestr(readvars('Data.xlsx',parameters,'Sheet',v)))
end
function Listbox(obj,h_popupmenu ,h_8things, handles)
k = get(obj,'Value');
Data = (readmatrix("Data.xlsx","Range",'B2:X32','Sheet', get(h_popupmenu,'Value')));
polarhistogram(Data(k,:),16)
end
If that doesn't work, we would have to see how the callbacks are set.

4 个评论
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Abrathamist
Abrathamist 2022-1-16
Unfortunately it did not fix the problem. My callbacks are set as following:
h_listbox=uicontrol('Parent',h_figure,...
'Tag','listbox1','Callback',{@Listbox, h_popupmenu,h_8things});
h_popupmenu=uicontrol(h_figure,...
'Tag','popupmenu1','Callback', {@Popup, h_listbox});
Thank you!
Voss
Voss 2022-1-16
Setting the listbox Callback to include the popupmenu as an argument will not work like that, because the popupmenu has not been created yet when the listbox is created. Try this instead:
h_listbox=uicontrol('Parent',h_figure,...
'Tag','listbox1');
h_popupmenu=uicontrol(h_figure,...
'Tag','popupmenu1','Callback', {@Popup, h_listbox});
set(h_listbox,'Callback',{@Listbox,h_popupmenu,h_8things});
function [v] = Popup(obj,~,h_listbox)
parameters=detectImportOptions('Data.xlsx');
v = get(obj,'Value');
disp(v)
set(h_listbox,'String',datestr(readvars('Data.xlsx',parameters,'Sheet',v)))
end
function Listbox(obj,~,h_popupmenu,h_8things)
k = get(obj,'Value');
Data = (readmatrix("Data.xlsx","Range",'B2:X32','Sheet', get(h_popupmenu,'Value')));
polarhistogram(Data(k,:),16)
end
Abrathamist
Abrathamist 2022-1-16
That works great! Thank you so much!
Voss
Voss 2022-1-16
Excellent! Glad it is working.

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