Insights Blog
-- Browse All Articles --
Physics Articles
Physics Tutorials
Physics Guides
Physics FAQ
Math Articles
Math Tutorials
Math Guides
Math FAQ
Education Articles
Education Guides
Bio/Chem Articles
Technology Guides
Computer Science Tutorials
Forums
General Math
Calculus
Differential Equations
Topology and Analysis
Linear and Abstract Algebra
Differential Geometry
Set Theory, Logic, Probability, Statistics
MATLAB, Maple, Mathematica, LaTeX
Trending
Featured Threads
Log in
Register
What's new
Search
Search
Search titles only
By:
General Math
Calculus
Differential Equations
Topology and Analysis
Linear and Abstract Algebra
Differential Geometry
Set Theory, Logic, Probability, Statistics
MATLAB, Maple, Mathematica, LaTeX
Menu
Log in
Register
Navigation
More options
Contact us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Mathematics
Set Theory, Logic, Probability, Statistics
Similarity between -/+ weighted distributions
Reply to thread
Message
[QUOTE="Stephen Tashi, post: 6025401, member: 186655"] Your use of the word "distribution" is unclear. There are distributions in the sense of probability distributions. There are "distributions" in the sense of histograms of empircal data. My guess is that you are tallking about histograms of empirical data. My guess that by "aggregating" them, you mean to take two histograms of empircal data and combine them into one histogram. It isn't clear what criteria you want to use to specify that two histograms should be aggregated into one histogram. My guess is that you want a statistic to use in a hypothesis test about whether the two histograms come from the same probability distribution. In your field of study, the term "background distribution" may be well known. However, just from the terminology of mathematical statisics it isn't clear whether you are talking about a probability distribution or somethjing computed from empirical data. One possibility is that as time passes, more data is collected and the [i]estimate[/i] for some probability distribution is updated. Another possiblity is that the computer program uses a changing background distribution specified by a theory and not updated by the data. I don't know what a "weighted" probability distribution would be versus an "unweighted" one. Can you give an example of each? I don't understand what you mean by "locally" aggregate. The first step in describing a problem in statistics is to state the format of the data and explain what it means. I'll guess the format and you can comment on it. Each datum is a vector of 7 numbers. Each number quantifies a different property of something. Since you speak of "spatial binning" and "velocities", I'll assume the data has the format (x,y,z,vx,vy,vz,w) where the (x,y,z) is a spatial location and the v's are velocities. (It isn't clear what the "weight" w is. Presumably not "mass".) [/QUOTE]
Insert quotes…
Post reply
Forums
Mathematics
Set Theory, Logic, Probability, Statistics
Similarity between -/+ weighted distributions
Back
Top