[Scilab-users] spline and color plot on the chart

[Rafael Guerra]

Reading the lsq_splin function help, should help in this case:
The error “There are not enough points to adjust” is due to the fact that the 3rd input to lsq_splin (‘x’ the list of breakpoints of the cubic spline) has values all lying outside the input vt12 variable range (39.49 to 155.62).


From: users <users-bounces at lists.scilab.org> On Behalf Of Daniel Stringari
Sent: Saturday, April 11, 2020 3:06 AM
To: Users mailing list for Scilab <users at lists.scilab.org>
Subject: Re: [Scilab-users] spline and color plot on the chart

Federico,

I appreciate the help. Below is a list of the code on which I try to plot the data with Isq_splin:

c = size (vt12)
a = 0
b = c (1) // c (1) = 16
n = c (1)
x = linspace (a, b, n)
[y, d] = lsq_splin (vt12, vv12, x ')
plot (y, d, 'r')
xlabel ('Speed (rpm)')
ylabel ('Torque (Nm)')
title ('Torque x speed values')

//vt12 = 5350.3 5380.19 5410.08 5439.96 4149.5 4179.35 3756.57 3602.73 3568.12 3597.85 3681.91 3711.59 6143.24 6172.86 6202.49 6232.1
//vv12 = 40.16   39.93   39.71   39.49   69.04   68.54   95.32   119.26   140.49   139.32   155.62   154.37   93.27   92.82   92.38   91.94

but I'm getting the error: lsq_plin: There are not enough points to adjust.

Does anyone understand what could be wrong?

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