Time error

[wenddymacro]

Error using datetime (line 640)
Could not recognize the date/time format of '09-May-2020'. You can specify a format using the 'InputFormat' parameter. If the date/time text contains day, month, or time zone names in a language foreign to the 'zh_CN' locale, those might not be recognized. You can specify a different locale using the 'Locale' parameter.
Error in getDataCOVID (line 47)
time = datetime(2020,01,22):days(1):datetime(datestr(floor(datenum(now))))-datenum(1);

[wenddymacro]

Evironment: Matlab 2020a

[ECheynet]

Hi,
Thank for the feedback. I am sorry but I cannot reproduce the error. I guess it's ok to let the issue as "open" so other users who may encounter this problem see your post.

[wenddymacro]

Hi, Cheynet,

This issue had been sovled. Maybe it due to matlab version. In getDataCOVID.m, I modified the code in line 48 to ''datetime(datestr(now,'yyyy-mm-dd'))-datenum(1)'', and in ChineseProvince.mlx, "datetime(datestr(now,'yyyy-mm-dd'))+datenum(10);" in line 89.

Then it's ok!

[csyuhao]

I also encounter this problem and the version of my MATLAB is R2020a. I solve this problem by changing the code from

datetime(datestr(floor(datenum(now))))-datenum(1)

to

datetime(floor(datenum(now)), 'ConvertFrom','datenum')-datenum(1)

Ref: Examples

[ECheynet]

Hi yuhaoooo,

Thank you for the feedback. Both forms work on my Matlab version, but I have R2019b. There may have been some changes in R2020a? I will update the syntax to the one you propose. We can let the issue as "open" until I create a new release.

[csyuhao]

I think this is because my machine set is Chinese. And I guess your machine set is English. So I should add Locale, en_US in the datetime function, just like this:

time = datetime(2020,01,22):days(1):datetime(datestr(floor(datenum(now))), 'Locale', 'en_US')-datenum(1);

And this does work in my machine.

[ECheynet]

OK thank, I did not know about that. I will do it.

[ECheynet]

I have uploaded a new version of the code with the suggestion by @YUHAOOOO

[wenddymacro]

Hi,Cheynet

Thanks for your adjustments

In addition, how to aggregate all provinces of china to country data ?

[ECheynet]

Hi @wenddymacro ,

You may do as I did in the example "Example_US_cities.mlx" for the state of Washington. For China, it should be possible to iterate over each province and cumulate the time histories of confirmed, deceased and recovered cases.

[wenddymacro]

Thanks, I had aggregated the chinese data