Unrecognized table variable name 'time'

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MOHAMMAD ABDUL MOKTADIR CHOWDHURY
评论： MOHAMMAD ABDUL MOKTADIR CHOWDHURY 2021-3-27
Hi, I want to plot a time space diagram showing speed. First row is postmile (yvar), first row, first column is time (xvar), and other value are cvar.
I have writhe the readtable function. In workspace time table is there but I got the following error message:
My code and error message:
Snapshot of my heatmap3.csv file
Could you please advise what's wrong wiht my code?
Thanks

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Walter Roberson
Walter Roberson 2021-3-27
Your csv file happears to have no header line, so the variable names created are Var1, Var2, and so on.
You are also attempting to color according to an array, not according to a single variable.
time = T{2:end,1};
postmile = T{1,2:end};
speed = T{2:end,2:end};
h = heatmap(time, postmile, speed);
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Walter Roberson
Walter Roberson 2021-3-27
time = T{2:end,1};
postmile = T{1,2:end};
speed = T{2:end,2:end}.';
h = heatmap(time, postmile, speed);

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MOHAMMAD ABDUL MOKTADIR CHOWDHURY
Thanks a lot Walter.
It is working now.

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