Linked Questions

11
votes
2answers
49k views

scale a number between a range [duplicate]

I have been trying to achieve a system which can scale a number down and in between two ranges. I have been stuck with the mathematical part of it. What im thinking is lets say number 200 to be ...
2
votes
1answer
5k views

Normalizing difference between two real values to [0,1] interval [duplicate]

If I have two positive real numbers that can take on any value between 0 and some finite real number, how do I normalized the difference between these two numbers to [0,1] interval where 0 indicates ...
0
votes
1answer
707 views

How do I normalize a vector of numbers so they are between 0 and 1? [duplicate]

I have a vector of numbers (both positive and negative). How can I normalize it so the values of the normalized vector will be between 0 and 1?
-1
votes
1answer
473 views

rescale a vector x to lie between arguments LOWER and UPPER in R [duplicate]

I am trying to rescales x to lie between lower and upper ...
0
votes
0answers
19 views

How to scale data to desired range? [duplicate]

I have a table with 3 columns X, Y and Z with n rows. The range of the data is 0-255. But I wished to scale the values such that the range becomes from -p to +q (where I decide p and q). I randomly ...
20
votes
3answers
56k views

What does “normalization” mean and how to verify that a sample or a distribution is normalized?

I have a question in which it asks to verify whether if the Uniform distribution (${\rm Uniform}(a,b)$) is normalized. For one, what does it mean for any distribution to be normalized? And two, how ...
2
votes
3answers
7k views

How to normalize data between 0 and 1?

I have seen the min-max normalization formula in several answers (e.g. [1], [2], [3]), where data is normalized into the interval $\left[0,1 \right]$. However, is there a method to normalize data ...
1
vote
1answer
6k views

De normalize predicted value

Alright so i have found this really good answer on how to normalize my data. I implemented @user25658 's code into my own project successfully, trained a linear model and used it to make a ...
0
votes
1answer
4k views

Proper way to scale feature data

I am using Iris dataset and trying to scale the feature to the range [0,1]. After normalization, I want to binarize the feature. The iris database contains n = 150 ...
0
votes
1answer
4k views

How to normalize rating in scale of 1 to 5?

Can anyone please tell me How to normalize rating in a scale of 1 to 5? In Yahoo! Movies dataset user has given a rating to a movie on the scale of 1 to 13 and 0 means there is no rating to that ...
2
votes
1answer
2k views

Neural Networks and Numeric Prediction

I'm new to machine learning and am trying to write a simple neural network that uses back-propagation. Now, so far I've successfully implemented my neural network to learn a boolean function. So for ...
3
votes
1answer
841 views

How to normalized a similarity matrix?

I have a similarity matrix $A \in \mathbb{R}^{N\times N}$ and $a_{ij}\ge 0$ and $A$ is also symmetric. I want to normalize this matrix in order to use it for graph-based clustering, so that each $1 \...
0
votes
0answers
1k views

Normalization when Max and Min Values are Reversed

I'm running an experiment where I'm continuously sampling from a dial hooked into a physiological recorder as a hack because the dial won't interface with the equipment we're using any other way. By ...
6
votes
1answer
241 views

Designing a Simple (a.k.a 'bad') Ranking value from several values of unknown distribution

I am but a humble developer, so please forgive if I butcher terminology of confuse concepts. I am looking at designing a simple ranking of Average Internet Audience Rank based upon a bloggers ...
1
vote
0answers
660 views

Time normalisation for time series using sliding window

As part of my research into eigenvalue dynamics of financial time series I am reading a paper which introduces the idea of time series normalisation between stocks before computing the zero-lag cross-...

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