Smooth Function not working

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Emily Dickens
Emily Dickens 2017-7-12
回答： Justin Lines 2018-8-28
When I try to use the smooth function it says that it is an undefined function of variable. I am trying to analyze data of a graph. Here is the script:
LOWER_LIMIT = 60;
SULFUR_LIMIT = 325;
UPPER_LIMIT = 600;
T_Sulfur = Ts((Ts>LOWER_LIMIT) & (Ts<SULFUR_LIMIT));
T_Carbon = Ts((Ts>SULFUR_LIMIT) & (Ts<UPPER_LIMIT));
W_Sulfur = smooth(Weight((Ts>LOWER_LIMIT) & (Ts<SULFUR_LIMIT)),75);
W_Carbon = smooth(Weight((Ts>SULFUR_LIMIT) & (Ts<UPPER_LIMIT)),100);
plot(T_Sulfur, W_Sulfur * 100 / max(W_Sulfur));
plot(T_Carbon, W_Carbon * 100 / max(W_Carbon));
xlabel('Temperature (°C)');
ylabel('Weight (%)');
RelativeSulfurWeightLoss=((max(Weight((Ts>LOWER_LIMIT) & (Ts<SULFUR_LIMIT)))) - (min(Weight((Ts>LOWER_LIMIT) & (Ts<SULFUR_LIMIT)))) / (max(Weight((Tx>LOWER_LIMIT) & (Ts<SULFUR_LIMIT)))))
RelativeSulfurWeightRemaining = 1 - ((max(Weight((Ts>LOWER_LIMIT) & (Ts<SULFUR_LIMIT)))) - (min(Weight((Ts>LOWER_LIMIT) & (Ts<SULFUR_LIMIT)))) / (max(Weight((Tx>LOWER_LIMIT) & (Ts<SULFUR_LIMIT)))))
RelativeCarbonWeightLoss=((max(Weight((Ts>SULFUR_LIMIT) & (Ts<UPPER_LIMIT)))) - (min(Weight((Ts>SULFUR_LIMIT) & (Ts<UPPER_LIMIT)))) / (max(Weight((Tx>SULFUR_LIMIT) & (Ts<UPPER_LIMIT)))))
RelativeCarbonWeightRemaining = 1 - ((max(Weight((Ts>SULFUR_LIMIT) & (Ts<UPPER_LIMIT)))) - (min(Weight((Ts>SULFUR_LIMIT) & (Ts<UPPER_LIMIT)))) / (max(Weight((Tx>SULFUR_LIMIT) & (Ts<UPPER_LIMIT)))))
  1 个评论
KSSV
KSSV 2017-7-12
smooth comes with curvefit toolbox...do you have that toolbox? What does which smooth gives?

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回答（2 个）

Torsten
Torsten 2017-7-12
Type "ver" to see whether you have a licence for the Curve Fitting Toolbox.
Best wishes
Torsten.
  2 个评论
Emily Dickens
Emily Dickens 2017-7-12
I do have the Curve Fitting Toolbox, but it still isn't working.
Torsten
Torsten 2017-7-12
Other commands from the Curve Fitting Toolbox work, e.g. "fit" ?
Best wishes
Torsten.

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Justin Lines
Justin Lines 2018-8-28
Was the smooth function always part of an add on?

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