How could I solve the Undefined function or variable 'detectImportOptions'. in MATLAB 2016a?

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Bajdar Nour
Bajdar Nour 2020-3-28
编辑： Bajdar Nour 2020-3-29
I use matlab 2016a , I know that the command (detectImportOptions) does not defined in 2016a. Is there any other command exist to give the same result instead of (detectImportOptions) in 2016a ?
countryall = ['US'];
for i = 1:length(countryall)
country1 = countryall(i); %specify country to model
%Obtaining and formating data - courtesy of Toshi Takeuchi - https://www.mathworks.com/matlabcentral/profile/authors/951521
result=webread('https://data.humdata.org/hxlproxy/api/data-preview.csv?url=https%3A%2F%2Fraw.githubusercontent.com%2FCSSEGISandData%2FCOVID-19%2Fmaster%2Fcsse_covid_19_data%2Fcsse_covid_19_time_series%2Ftime_series_covid19_confirmed_global.csv&filename=time_series_covid19_confirmed_global.csv','options','table');
deathresult = webread('https://data.humdata.org/hxlproxy/api/data-preview.csv?url=https%3A%2F%2Fraw.githubusercontent.com%2FCSSEGISandData%2FCOVID-19%2Fmaster%2Fcsse_covid_19_data%2Fcsse_covid_19_time_series%2Ftime_series_covid19_deaths_global.csv&filename=time_series_covid19_deaths_global.csv','options','table');
writetable(result,'result.txt','WriteVariableNames',false);
writetable(deathresult,'deathresult.txt','WriteVariableNames',false);
opts = detectImportOptions('result.txt', 'TextType','string');
opts1 = detectImportOptions('deathresult.txt', 'TextType','string');
  2 个评论
Bajdar Nour
Bajdar Nour 2020-3-29
dear Ameer I used a readtable command
times_conf = readtable('result.txt',opts);
times_conf1 = readtable('deathresult.txt',opts1);

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回答（2 个）

Ameer Hamza
Ameer Hamza 2020-3-29
In 2016a, readtable does not accept an option: https://www.mathworks.com/help/releases/R2016a/matlab/ref/readtable.html. At best, you can use name value pairs to configure the settings.
Bajdar Nour
Bajdar Nour 2020-3-29
Dear Ameer I want to run this fileexchange files
https://ch.mathworks.com/matlabcentral/fileexchange/74676-fitviruscv19v3-covid-19-sir-model
but it gives me
Undefined function or variable 'detectImportOptions'
could you prefer another option to run it by 2016a?
  2 个评论
Ameer Hamza
Ameer Hamza 2020-3-29
编辑：Ameer Hamza 2020-3-29
Bajdar, I checked the code. Although you can avoid the problem by merely removing opts and opts1 from the readtable call. On 2020a, readtable is able to read it even without providing options as input. I am not sure about R2016a. However, there is a bigger issue here. The code makes extensive use of string datatype. However, the support for that was added from R2016b. So even if you are able to read the tables, it will still require extensive modification of the code to make it work in R2016a.
times_conf = readtable('result.txt');
times_conf1 = readtable('deathresult.txt');
Bajdar Nour
Bajdar Nour 2020-3-29
编辑：Bajdar Nour 2020-3-29
Dear Ameer thank you so much. I have already checked the readtable without ops and ops1 (it works) but as you said other problems start to appear. I think the best way to run the all options is updating my matlab.thanks again

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