File:MDKQ3.svg
Jump to navigation
Jump to search
Size of this PNG preview of this SVG file: 378 × 288 pixels. Other resolutions: 315 × 240 pixels | 630 × 480 pixels | 1,008 × 768 pixels | 1,280 × 975 pixels | 2,560 × 1,950 pixels.
Original file (SVG file, nominally 378 × 288 pixels, file size: 39 KB)
Captions
Captions
Add a one-line explanation of what this file represents
Summary
[edit]| Description |
Deutsch: Fit einer parabolischen Funktion |
| Date | |
| Source | Own work, Neufassung und Zusammenfassung von File:Scatterplot1.png und File:AlterGewicht.png vom Benutzer Philipendula |
| Author | Christian Schirm |
| SVG development |  This plot was created with Matplotlib. |
| Source code | Python code# This source code is public domain
import numpy
import matplotlib.pyplot as plt
#Alter von(yr); bis(yr); Groesse(m); Gewicht(kg)
stat="""0; 1; 0.67; 7.7
1; 2; 0.83; 11.9
2; 3; 0.93; 14.4
3; 4; 1.01; 16.6
4; 5; 1.08; 18.7
5; 6; 1.15; 21.0
6; 7; 1.22; 23.9
7; 8; 1.27; 27.0
8; 9; 1.33; 30.4
9; 10; 1.39; 34.1
10; 11; 1.44; 37.8
11; 12; 1.50; 42.6
12; 13; 1.56; 47.5
13; 14; 1.63; 53.5
14; 15; 1.70; 59.9
15; 16; 1.75; 65.8
16; 17; 1.78; 69.8
17; 18; 1.80; 72.9
18; 20; 1.81; 75.5
20; 25; 1.81; 78.0
25; 30; 1.80; 80.7
30; 35; 1.80; 83.4
35; 40; 1.80; 84.8
40; 45; 1.80; 85.1
45; 50; 1.79; 85.7
50; 55; 1.78; 85.8
55; 60; 1.77; 85.9
60; 65; 1.76; 85.2
65; 70; 1.76; 84.4
70; 75; 1.74; 83.3
75; 80; 1.73; 79.0""".split('\n') #Daten von 2009
gewicht = [list(map(float,i.split(';'))) for i in stat]
x = [(i[1]+i[0])*0.5 for i in gewicht[18:-1]]
y = [i[3] for i in gewicht[18:-1]]
N = 3
A = numpy.zeros((N,N))
for i in range(N):
for j in range(N):
A[i,j] = sum(xi**(i+j) for xi in x)
b = numpy.zeros((N))
for i in range(N):
b[i] = sum(xi**(i)*yi for xi,yi in zip(x,y))
c = numpy.linalg.solve(A, b)
xneu = numpy.sort(numpy.linspace(17, 74.5, num=50).tolist() + x)
yneu = numpy.sum([c[i]*xneu**i for i in range(len(c))],axis=0)
fig = plt.figure(figsize=(4.2, 3.2))
y1, = plt.plot(x,y,'o',label='Messpunkte')
y2, = plt.plot(xneu,yneu,'r-',label='Modellfunktion')
plt.xlabel('x (Alter in Jahren)')
plt.ylabel('y (Gewicht in kg)')
order = y1,y2
plt.legend(order,[p.get_label() for p in order],frameon=True, loc='lower right')
plt.grid(True, alpha=0.7)
plt.tight_layout()
plt.savefig('MDKQ3.svg')
|
Licensing
[edit]
I, the copyright holder of this work, hereby publish it under the following license:
 
|
This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
|
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:06, 23 May 2021 | | 378 × 288 (39 KB) | Physikinger (talk | contribs) | New Matplotlib version |
| 18:58, 2 February 2011 |  | 405 × 315 (50 KB) | PhysikingerC (talk | contribs) | Text Problem | |
| 18:40, 2 February 2011 |  | 405 × 315 (48 KB) | PhysikingerC (talk | contribs) | Text als Text, nicht als Kurven | |
| 22:30, 1 February 2011 |  | 361 × 264 (49 KB) | PhysikingerC (talk | contribs) | {{Information |Description ={{de|1=Fit einer parabolischen Funktion}} |Source ={{own}} |Author =Christian Schirm |Date =2011-02-01 |Permission = |other_versions = }} |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on de.wikipedia.org
