3d plotting of multiple sets of data

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Gilang Septawijaya
Gilang Septawijaya 2023-7-12
回答： Dyuman Joshi 2023-7-12
i want to create 3d plot using plot3 function but i get error in my code
here is my code:
plot3([40 1.25 0.01107],[40 2.5 0.02238],[40 5 0.04485],[40 10 0.08865],[40 12.5 0.1108],[40 20 0.1772],[40 25 0.2215],[40 40 0.3551],[40 50 0.4431],...
[50 1.25 0.02122],[50 2.5 0.04307],[50 5 0.08686],[50 10 0.1719],[50 12.5 0.2148],[50 20 0.3435],[50 25 0.4286],[50 40 0.6852],[50 50 0.8564],...
[60 1.25 0.03306],[60 2.5 0.06777],[60 5 0.136],[60 10 0.2696],[60 12.5 0.3371],[60 20 0.5378],[60 25 0.6725],[60 40 1.072],[60 50 1.342],...
[70 1.25 0.04706],[70 2,5 0,09508],[70 5 0.1917],[70 10 0.3794],[70 12.5 0.4715],[70 20 0.7539],[70 25 0.9413],[70 40 1.5],[70 50 1.879],...
[81 1.25 0.06227],[81 2.5 0.1262],[81 5 0.2545],[81 10 0.5059],[81 12.5 0.6323],[81 20 1.013],[81 25 1.267],[81 40 2.032],[81 50 2.541],[90 1.25 0.07809]);

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回答（1 个）

Dyuman Joshi
Dyuman Joshi 2023-7-12
Ran in:
You have total of 49 sets of points, which you can not plot via plot3. The number of inputs, to plot multiple set of data, must be a divisible of 3.
Going through the pattern of the input (displayed in form of rows here), the last set of points i.e. [90 1.25 0.07809], seems to be extra.
And there is a typo in defining numbers in numbers in the 29th set (4th row, 2nd set), you have used a comma instead of decimal point.
plot3() works fine after removing the extra data set and correcting the typo.
plot3([40 1.25 0.01107],[40 2.5 0.02238],[40 5 0.04485],[40 10 0.08865],[40 12.5 0.1108],[40 20 0.1772],[40 25 0.2215],[40 40 0.3551],[40 50 0.4431],...
[50 1.25 0.02122],[50 2.5 0.04307],[50 5 0.08686],[50 10 0.1719],[50 12.5 0.2148],[50 20 0.3435],[50 25 0.4286],[50 40 0.6852],[50 50 0.8564],...
[60 1.25 0.03306],[60 2.5 0.06777],[60 5 0.136],[60 10 0.2696],[60 12.5 0.3371],[60 20 0.5378],[60 25 0.6725],[60 40 1.072],[60 50 1.342],...
[70 1.25 0.04706],[70 2.5 0.09508],[70 5 0.1917],[70 10 0.3794],[70 12.5 0.4715],[70 20 0.7539],[70 25 0.9413],[70 40 1.5],[70 50 1.879],...
...%2 typos ^ ^
[81 1.25 0.06227],[81 2.5 0.1262],[81 5 0.2545],[81 10 0.5059],[81 12.5 0.6323],[81 20 1.013],[81 25 1.267],[81 40 2.032],[81 50 2.541])

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