Unrecognized table variable name 'time'

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

Answer 1

[Walter Roberson]

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);

[MOHAMMAD ABDUL MOKTADIR CHOWDHURY]

Hi Walter,

Following error message I found after run the code:

Please advise.

Thanks

[Walter Roberson]

time = T{2:end,1};
postmile = T{1,2:end};
speed = T{2:end,2:end}.';
h = heatmap(time, postmile, speed);

[MOHAMMAD ABDUL MOKTADIR CHOWDHURY]

Thanks a lot Walter

Its workig now

Answer 2

[MOHAMMAD ABDUL MOKTADIR CHOWDHURY]

Thanks a lot Walter.

It is working now.