Tagged Questions

Questions asking for a "big list" of examples, illustrations, etc. Please do not ask too many of these. Please do not use this as the only tag for a question.

243 views

Replacing elements of a nested list by some value

I have a list of list ...
621 views

Plot list of million points

I am working on large datasets of size $10\times 10^6$ and would like to visualize these in Mathematica, but they take lot of time to plot. How can I speed it up? I also want to save the plots as ...
71 views

Take a list with the amounts of the random samples from another list while holding the index

I have a list called cant with some amounts of samples to take from the list community as follows: ...
114 views

ListDensityPlot and ListPlot3D with big data [duplicate]

I have a large data set (512 x 512) and I have problems plotting it. ListPointPlot3D works fine But ListDensityPlot won't go through all the points (the same goes for ListPlot3D): Is there a way to ...
67 views

How to discriminate Weatherdata latitude and longitude from a more detailed list

From this list of weather data how can I discriminate only latitude longitude for each station? For example from the following sample I would need only the coordinates: "50136","","Aoluguya|Mohe, ...
120 views

How to partition three years of data into daily samples

I'm trying to find mean of temperature data list. The temperature data list has 3 hours steps which means I have 365*8=2920 temperature measurements per year. My data are temperatures of 13 years. ...
148 views

Speed up Select on large list

I am running this on a very large list, it is important to notice that some times the dates in v occure several times, and I want the selected list to show the same amount. This produces the right ...
886 views

Select a repeated element in a list

I want to select all elements that repeat 4 times in the list. I propose this code ...
109 views

How to create 2k sized vector in k sized loop

I want to solve a system of simple differential equations. At some point I need to solve non-linear system of algebraic equations with Newton method. I would like to efficiently create a right hand ...
106 views

Amount of k-sized not-duplicated subsets of subsets of pair with disitinct sorted integers

I have a list, L, of this kind ($n\in \mathbb{N}$): L=Sort[RandomSample[Subsets[Range[n],{2}],RandomInteger[{1,Binomial[n,2]}]]] S contains any k-sized subset ...
92 views

Create huge RandomInteger list

For testing purposes, I'd like to create very large amounts of Random Integers, let's say between $-1000$ and $1000$. I'm using the usual ...
177 views

How can I replace the general element of a geometric series with the sum of the series?

Consider the list mylist = {b(a/bc t)^r, a/b(b t)^r, a (c/d t)^r, ...} where a, b, c, t, etc., are real numbers between 0 and 1. I want to sum each term in the ...
121 views

joining lists based on content

I have lists created by other processing steps, which are basically constituted by elements like this: ...
889 views

Examples of (well coded) packages using custom notation

Which packages do you know of, that have the following properties: using custom notation (for input AND output would be preferable) well coded & designed (from your subjective perspective!)