GRPSTATS and datetime columns

Question

Brian 2015-3-19

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/184057-grpstats-and-datetime-columns

评论： Peter Perkins 2015-3-22

Hi, I use grpstats to calculate statistics by different variables often. The new datetime format is very useful and I have converted many of my date handling procedures to utilize datetime arrays. However, when I have a table with a date field in the format of datetime it seems like grpstats can not properly use this field as a grouping statistic. I get the message below, indicating that a datetime field is not a plausible grouping variable format. Is there a way around this? Will this be fixed in the near future?

Error using grp2idx (line 117) A grouping variable must be a categorical, numeric, or logical vector, a cell vector of strings, or a 2D character array.

Thanks for your help, Brian