8,112 reputation
11949
bio website
location
age
visits member for 2 years, 9 months
seen 2 hours ago

Nov
19
comment Obtain polygons describing all intersections of many polygons
You could use a binary encoding: assign each shape a colour that has exactly 1 nonzero bit, rasterize each on a black background, then use ImageAdd. But you can only distinguish up to 24 shapes.
Nov
19
awarded  Nice Answer
Nov
17
comment How to detect outlier in data of an unknown function $f(x)$
I don't think I would call the errors in your data outliers as such (i.stack.imgur.com/h6MwF.png). There seems to be a small systematic offset that comes and goes.
Nov
16
comment Visually Separating Cliques in Graphs
Instead of separating the cliques physically, have you considered colouring them using HighlightGraph, like in the example for FindGraphPartition?
Nov
16
comment Visually Separating Cliques in Graphs
Are your cliques disjoint, that is, no vertex belongs in more than one clique? Also, it would be nice if you could provide some example data.
Nov
16
comment I'm trying to use ParametricPlot but my graphs keep coming up blank
All built-in functions and variables in Mathematica start with a capital letter.
Nov
15
revised Curve fitting by running through hundreds of models and return the one with best fit
added 9 characters in body
Nov
13
comment Is there any way to solve this convex-concave like optimization problem?
First of all the question is how to even represent an arbitrary probability distribution $g$ in a numerics-friendly way. You might divide $\mathbb R$ into a finite number of bins and represent $g$ as the vector of probability mass in each bin, then approximate the integrals by sums over the bins. At least that way, you'd end up with a finite-dimensional optimization problem.
Nov
13
comment Is it possible to have a function with non-global parameters?
Wait a second... I've never heard of function parameter names colliding, in any programming language. Is that something that actually happens in Mathematica packages??
Nov
13
comment How do I display the plane of best fit in 3D?
Define fit = Fit[t1, {1, x, y}, {x, y}], then use Plot3D.
Nov
13
awarded  Nice Answer
Nov
13
revised Question in ParametricPlot3D, how to join the minima of a {x,y} function
added 538 characters in body
Nov
13
answered Question in ParametricPlot3D, how to join the minima of a {x,y} function
Nov
13
comment Is there any way to solve this convex-concave like optimization problem?
Perhaps you should ask math.stackexchange.com about how to approach the problem first, then ask here about how to implement the approach in Mathematica.
Nov
12
comment Non linear curve fit
@bobthechemist: Right, A*0.075^alpha*(Log[13.22])^beta is three parameters controlling a single degree of freedom. Anyway, @user384..., I'm pretty sure the fit you already have is the best that you can get.
Nov
12
comment Non linear curve fit
I think you copy-pasted an extra minus in the term Exp[-0.5*((x- -24.4)/s)^2] inside NonlinearModelFit. I get the result you show with x - 24.4 but not with x - -24.4.
Nov
12
revised Non linear curve fit
make data not take so much space
Nov
12
comment Is there an inverse function for F[x] = {Cos[x], Sin[x]} in Mathematica?
ArcTan[a, b] does what you want.
Nov
11
comment Country density plot of lines (highways)
What do you mean by the "density of a line"? Please be as precise as possible.
Nov
11
answered How to evaluate differential entropy from raw data?