Help with code, writematrix not working. Please help fix

43 次查看（过去 30 天）
Ian Upchurch
Ian Upchurch 2022-5-5
评论： Ian Upchurch 2022-5-8
Hello, for whatever reason, writematrix is not working for me in MatLab. I need to write my results into an excel file and I don't know what else to do. No matter what I do, I cant fix it.
Error:
Error using writematrix (line 206)
Execution of script mpower as a function is not supported:
E:\Program Files\MATLAB\R2021a\toolbox\matlab\ops\mpower.m
Error in Meh (line 27)
writematrix('Departure City:','table1.xlsx','Sheet',2,'Range','A6')
My Code:
close all
clear
clc
%load the table to read cities and their distances
table=[0 2 3 4
2 0 0 1
3 0 0 5
4 1 5 0]
table = xlsread('table1.xlsx');
L=length(table);
disp(['Cities and their distances: '])
table
disp(['Cities to choose from: 1 to ',num2str(L)])
prompt='Departure City:';
DepartureCity=input(prompt);
while (DepartureCity>L)
disp(['Sorry that this is NOT a city we know. Please enter a valid city number'])
prompt='Departure City:';
DepartureCity=input(prompt);
end
writematrix('Departure City:','table1.xlsx','Sheet',2,'Range','A6')
writematrix(DepartureCity,'table1.xlsx','Sheet',2,'Range','B6')
prompt='Destination City:';
DestinationCity=input(prompt);
while (DestinationCity>L)
disp('Sorry that this is NOT a city we know. Please enter a valid city number')
prompt='Destination City:';
DestinationCity=input(prompt);
end
writematrix('Destination City:','table1.xlsx','Sheet',2,'Range','A7')
writematrix(DestinationCity,'table1.xlsx','Sheet',2,'Range','B7')
DepartCityRow=table(DepartureCity,:);
DestiCityRow=table(DestinationCity,:);
routes=0;
if DepartCityRow(DestinationCity) ~=0
routes=routes+1;
end
for i=1:L
if DepartCityRow(i)~=0 && DestiCityRow(i)~=0
routes=routes+1;
end
end
disp(['Total number of routes:',num2str(routes)])
writematrix('Total number of routes:','table1.xlsx','Sheet',2,'Range','A8')
writematrix(routes,'table1.xlsx','Sheet',2,'Range','B8')
direct=DepartCityRow(DestinationCity);
disp('STOP DISTANCE')
disp(['Direct ',num2str(direct),' Miles'])
writematrix('STOP DISTANCE','table1.xlsx','Sheet',2,'Range','A9')
writematrix('Direct ','table1.xlsx','Sheet',2,'Range','A10')
writematrix(direct,'table1.xlsx','Sheet',2,'Range','B10')
writematrix(' Miles','table1.xlsx','Sheet',2,'Range','C10')
j=0;
if routes>1
for i=1:L
if i~=DestinationCity && i~=DepartureCity && DepartCityRow(i)~=0 && DestiCityRow(i)~=0
j=j+1;
route(j,1)=DepartCityRow(i) + DestiCityRow(i);
disp(['City',num2str(i),' ',num2str(DepartCityRow(i)),'+',num2str(DestiCityRow(i)),'=',num2str(route(j,1)),' Miles'])
if j==1
writematrix('City','table1.xlsx','Sheet',2,'Range','A11')
writematrix(DepartCityRow(i),'table1.xlsx','Sheet',2,'Range','B11')
writematrix('+','table1.xlsx','Sheet',2,'Range','C11')
writematrix(DestiCityRow(i),'table1.xlsx','Sheet',2,'Range','D11')
writematrix('=','table1.xlsx','Sheet',2,'Range','E11')
writematrix(route(j,1),'table1.xlsx','Sheet',2,'Range','F11')
writematrix(' Miles','table1.xlsx','Sheet',2,'Range','G11')
else
writematrix('City','table1.xlsx','Sheet',2,'Range','A12')
writematrix(DepartCityRow(i),'table1.xlsx','Sheet',2,'Range','B12')
writematrix('+','table1.xlsx','Sheet',2,'Range','C12')
writematrix(DestiCityRow(i),'table1.xlsx','Sheet',2,'Range','D12')
writematrix('=','table1.xlsx','Sheet',2,'Range','E12')
writematrix(route(j,1),'table1.xlsx','Sheet',2,'Range','F12')
writematrix(' Miles','table1.xlsx','Sheet',2,'Range','G12')
end
end
end
if j==1
c={' ', ' ', ' ', ' ', ' ', ' ',' '};
writecell(c,'table1.xlsx','Sheet',2,'Range','A12:G12')
end
disp('Routes and distances written to the sheet 2 of table1.xlsx. Goodbye!')
end

请先登录，再回答此问题。

回答（4 个）

Cris LaPierre
Cris LaPierre 2022-5-5
Your first input to writematrix needs to be a variable name, not a char. Change this:
writematrix('Departure City:','table1.xlsx','Sheet',2,'Range','A6')
to this
writematrix(DepartureCity,'table1.xlsx','Sheet',2,'Range','A6')
  7 个评论
显示 5更早的评论
Cris LaPierre
Cris LaPierre 2022-5-5
编辑：Cris LaPierre 2022-5-5
You do not specify a path, so MATLAB is trying to save the file in the current folder. Use the current folder browser to change this location.
Perhaps your virtual desktop cannot write to OneDrive. Run a test. In your virtual desktop (but not in MATLAB), can you create a file in the specified location?
C:\Users\ijupchur\OneDrive - University of New Orleans\Documents\MATLAB\
Ian Upchurch
Ian Upchurch 2022-5-8
Hey, thank you. My teacher just emailed us this morning our Virtual DeskTop is having issue even running simple code

请先登录，再进行评论。

Ian Upchurch
Ian Upchurch 2022-5-5
I can. I just attempted to make a new file that worked the first time, only to close off and produce the same error as last time.
Sean de Wolski
Sean de Wolski 2022-5-5
which -all writematrix
which -all mpower
  4 个评论
显示 2更早的评论
Ian Upchurch
Ian Upchurch 2022-5-5
which -all writematrix
E:\Program Files\MATLAB\R2021a\toolbox\matlab\iofun\writematrix.m
>> which -all mpower
E:\Program Files\MATLAB\R2021a\toolbox\matlab\ops\mpower.m
E:\Program Files\MATLAB\R2021a\toolbox\control\ctrlmodels\@InputOutputModel\mpower.m % InputOutputModel method
E:\Program Files\MATLAB\R2021a\toolbox\wavelet\wavelet\@laurpoly\mpower.m % laurpoly method
>>
Ian Upchurch
Ian Upchurch 2022-5-5
What does this exactly mean? Is it a program that contains a list of all the functions I can use?

请先登录，再进行评论。

Jeremy Hughes
Jeremy Hughes 2022-5-6
The error reffers to mpower.m being a script and not a function. mpower is a builtin function, and mpower.m contains only help text. It seems that MATLAB isn't detecting the builtin function, which is likely an installation issue. you can try reinstalling from scratch, that should resolve the issue.

类别

在 Help Center 和 File Exchange 中查找有关 Spreadsheets 的更多信息

标签

产品


版本

R2021a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by