How can I plot multiple graphs from a name column (from Excel)

Question

Jonathan Mole 2018-6-22

0
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https://ww2.mathworks.cn/matlabcentral/answers/407008-how-can-i-plot-multiple-graphs-from-a-name-column-from-excel

回答： dpb 2018-6-23

I want to plot multiple graphs from a 3-column spreadsheet from Excel.

Data is in this format:
   (name);           (x-value);     (y-value);
ab-1 (~ 15 rows);         x;             y;
ab-2 (~ 15 rows);         x;             y;
ab-3 (~ 15 rows);         x;             y;
bc-1 (~ 15 rows);         x;             y;
bc-2 (~ 15 rows);         x;             y;
bc-3 (~ 15 rows);         x;             y;
cd-1 (~ 15 rows);         x;             y;
cd-2 (~ 15 rows);         x;             y;
cd-3 (~ 15 rows);         x;             y;
...

In this example, ab-1 represents one series of values. Where there is 15 data values in this series, one value by row. I would like each plot to have three series, represented by ab-1, ab-2 and ab-3 (So ~ 45 points, this is variable). How can I create multiple 3-series plots in MATLAB, where data is discredited by text in one column?