piecewise Questions
3
Solved
How do you return different values in a cell based on which range the value entered in another cell comes under? Specifically, I am trying to make a step function.
For example:
IF G2 is ABOVE &quo...
Cullan asked 10/9, 2013 at 19:59
2
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I want to generate a toy example to illustrate a convex piecewise linear function in python, but I couldn't figure out the best way to do this. What I want to do is to indicate the number of lines ...
2
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In N3059 I found the description of piecewise construction of pairs (and tuples) (and it is in the new Standard).
But I can not see when I should use it. I found discussions about emplace and non-...
Autumn asked 28/5, 2011 at 14:23
12
Solved
I am trying to fit piecewise linear fit as shown in fig.1 for a data set
This figure was obtained by setting on the lines. I attempted to apply a piecewise linear fit using the code:
from scipy im...
Outclass asked 1/4, 2015 at 4:32
2
Solved
Let's say I have
import numpy as np
from scipy.interpolate import UnivariateSpline
# "true" data; I don't know this function
x = np.linspace(0, 100, 1000)
d = np.sin(x * 0.5) + 2 + np.cos(x * 0.1...
3
Solved
I want to fit a piecewise linear regression with one break point xt, such that for x < xt we have a quadratic polynomial and for x >= xt we have a straight line. Two pieces should join smooth...
Strickland asked 9/9, 2016 at 19:47
3
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I need to explain this in excruciating detail because I don't have the basics of statistics to explain in a more succinct way. Asking here in SO because I am looking for a python solution, but migh...
Lewendal asked 24/8, 2012 at 8:8
4
Solved
I am trying to fit a two-part line to data.
Here's some sample data:
x<-c(0.00101959664756622, 0.001929220749155, 0.00165657261751726,
0.00182514724375389, 0.00161532360585458, 0.001269910610...
1
I have used some code found in the question How to apply piecewise linear fit in Python?, to perform segmented linear approximation with a single breakpoint.
The code is as follows:
from scipy im...
Andromada asked 14/9, 2017 at 12:18
2
Solved
I am trying to generate a piecewise symbolic function in Matlab. The reason it has to be symbolic is I want to be able to integrate/differentiate the function afterwards and/or insert actual values...
Margheritamargi asked 10/9, 2010 at 18:2
2
I want to do a piecewise linear regression with one break point, where the 2nd half of the regression line has slope = 0. There are examples of how to do a piecewise linear regression, such as here...
Accusatorial asked 5/5, 2015 at 18:11
3
I have an application in which I need to define a piecewise function, IE, f(x) = g(x) for [x in some range], f(x)=h(x) for [x in some other range], ... etc.
Is there a nice way to do this in Juli...
1
Solved
I followed these steps to plot the results of a piecewise linear regression with one breakpoint which I have done by segmented package:
lin.mod <- lm(ChH~CL)
segmented.mod <- segmented(lin.m...
Landonlandor asked 16/10, 2015 at 7:18
3
Solved
The standard templates std::pair and std::array are special cases of std::tuple, and it stands to reason that they should have a very similar set of capabilities.
However, uniquely among the three...
3
Solved
I define the piecewise function
def Li(x):
return piecewise(x, [x < 0, x >= 0], [lambda t: sin(t), lambda t: cos(t)])
And when I evaluate Li(1.0)
The answer is correct
Li(1.0)=array(0...
4
Solved
I have a function in MATLAB which takes another function as an argument. I would like to somehow define a piecewise inline function that can be passed in. Is this somehow possible in MATLAB?
Edit:...
1
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I am taking a course on Fuzzy Systems and I take my notes on my computer. This means that I have to draw graphs on my computer from time to time. Since these graphs are quite well defined, I feel t...
2
Solved
I am trying to construct a piecewise function for some digital signal processing, but I cannot get numpy.piecewise to allow me to specify a range.
Here is what I want to input:
t = np.arange(-10,...
2
Solved
I'm trying to fit a piecewise defined function to a data set in Python. I've searched for quite a while now, but I haven't found an answer whether it is possible or not.
To get an impression of wh...
Gardel asked 20/6, 2012 at 23:55
6
Solved
I want to define a piecewise function using R, however, my R code goes wrong. Any suggestion is welcome.
x<-seq(-5, 5, by=0.01)
for (x in -5:5){
if (-0.326 < x < 0.652) fx<- 0.632
e...
3
Solved
I have 54 points. They represent offer and demand for products. I would like to show there is a break point in the offer.
First, I sort the x-axis (offer) and remove the values that appears twice....
1
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