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Questions tagged [extrapolation]

extrapolation is a method of constructing new data points outside the range of a discrete set of known data points

Extrapolation is a method of constructing new data points outside the range of a discrete set of known data points.

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ARIMA Nodes in KNIME how to use?

I'm new to KNIME and trying to use ARIMA for extrapolation of my time series data. But I've failed to make ARIMA Predictor to do it's work. Input data are of the following…
Deil
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Extrapolate a set of measurement data with Matlab

There is data given from a csv-File. It contains the resistance of a cooling metal piece at a certain time. The measuremnt started at t=7.8s. The task is to extrapolate the graph from 7.8s to 0s to determine the highest resistance and thus the…
jon_tea
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Generalised Gamma distribution R

I've been stuck on this for a while, and it is probably something so simple but hey I'm bogged down. I've been using the flexsurv package, and I've got the following coefficients: MU: 1.8664 SIGMA: 0.1701 Q: -47.8063 I'm trying to extrapolate…
Stats_Dunce
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Extrapolate 2d numpy array in one dimension

I have numpy.array data set from a simulation, but I'm missing the point at the edge (x=0.1), how can I interpolate/extrapolate the data in z to the edge? I have: x = [ 0. 0.00667 0.02692 0.05385 0.08077] y = [ 0. 10. 20. 30. 40.…
Filip Andersson
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extract values from extrapolated graph in excel

can someone let me know how can I extract/read values from a graph in excel that I generated using couple of values that I had. I then extrapolated the graph to generate projection. Now I want to read all projected values from graph. Will…
uatta
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Dividng a vector (with fewer elements) by another vector in MatLab

I have a vector N which has 21 elements N=[3900000 5300000 7200000 9600000 12900000 17100000 23100000 ... 31400000 38600000 50200000 62900000 76000000 92000000 ... 105700000 122800000 131700000 150700000 179000000 205000000 ... 226500000…
Justine Lawless
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Google Spread Sheet extrapolation

How to generate dates that correspond to the sequence Monday, Wednesday, Friday, which is repeating every week? For example, if Monday is 25/7/2016, I would like to have the following sequence in one…
Antoine
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Extrapolating time series

I downloaded annual earnings by Google over past 4 years: library(quantmod) getFinancials(GOOG) df<-viewFinancials(GOOG.f, type='IS', period='A',subset = NULL)['Net Income',] df<-(as.data.frame(df)) Here is how the data is displayed: 2015-12-31…
Oposum
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Extrapolation OutOfRangeException Apache Commons Math

I'm trying to implement an Extrapolation function using the Apache Commons Math lib and the PolynomialSplineFunction & LinearInterpolator functions. public double[] linearInterp(double[] x, double[] y, double[] xi) { LinearInterpolator li = new…
JTK
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Matlab interp2 extrapolation

I am doing a 2-D interpolation using interp2. For some data values, the interp2 command returns NaN because one of the dimensions are outside of the range defined by the vector of known values. Its possible to extrapolate with the interp1 command.…
Balraj Boyal
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Curve fitting and Extrapolation for 3d plot in python

I want to extrapolate 3d plot in python using numpy/scipy. Extrapolation is done with curve fitting. Refer to the following data which is having different x & y sizes. x = np.array([740,760,780,800,820,840,860,880,900,920,940,960]) # Presssure…
sandy
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Extra/Inter-polate from a Model

I managed to get some regression done using lm(d$result~d$param1+d$param2) -> model Now I would like to use model to extrapolate (or interpolate) the result for a new dataframe. How can I do it ? I'm sure there is already a function for that.
mb14
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Extrapolation beyond a grid of data

I have a grid of (x, y, z) values and I want a function that can approximate z-values when it is given (x,y) points that lie beyond the grid. I have tried to solve the question using the Akima package (code block 3), but I can't seem to get the…
zaphoid
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Calculate enemy's hitpoints (extrapolate), based on change rate?

In our game, we have a boss (NPC), who's life is being checked on a time interval, say 1 minute. I need to find a way to extrapolate known points (life,time), and approximately predict life after one minute (after 1 minute life will be checked…
Martin Asenov
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Data extrapoliation, how to remove nonsense data?

Consider some data in the following form Sample = [1 2 3 4 5 6 7 8 9 10]'; Data = [10 10 10 10 8 5 2 1 0.6 0.4]'; Now I know for a fact this data should form a straight line when plotted with a semilog axis: The problem is sample no. 1, 2, 3 and 4…
Steve Hatcher
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