7.8 Tuesday, November 11, 2014
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Top new questions this week:
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[Exclude data from a
list]\url{http://mathematica.stackexchange.com/questions/65246/exclude-data
-from-a-list}
Let's create some random sample data
data = Table[{RandomReal[{-10, 10}], RandomReal[{-10, 10}]}, {i, 1,
300}];
Then we plot them using ListPlot
L0 = ListPlot[data, Frame -> True, Axes -> ...
- asked by Vaggelis_Z (13 votes), answered by kguler (15 votes)
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[How do I understand ListCorrelate(contains $\{k_L,k_R\}$) when it works
for 2-dimentional
data?]\url{http://mathematica.stackexchange.com/questions/64925/how-do-i-un
derstand-listcorrelatecontains-k-l-k-r-when-it-works-for-2-di}
Two months ago, I asked a question here
And @nikie give me a solution:
The intuitive way to understand ListCorrelate is that the kernel is
"moved" to every position in the array, and the sum of ...
- asked by ShutaoTang (12 votes), answered by Simon Woods (11 votes)
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[Using 0 to create new columns in a list with
Part]\url{http://mathematica.stackexchange.com/questions/65200/using-0-to-c
reate-new-columns-in-a-list-with-part}
I just discovered a nice way to create intermediary columns in a list,
and I would like to know if I can have some problem with it. It Works
like this:
Imagine I have this list, 5x3:
SeedRandom[0]
...
- asked by Murta (10 votes), answered by Mr.Wizard (12 votes)
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[Glitch in
Filling?]\url{http://mathematica.stackexchange.com/questions/64988/glitch-i
n-filling}
I ran into a problem while plotting and I was able to narrow it to this.
Before I start "spelunking" I'd like to know if I am overlooking
something or if this is a problem others have worked through.
...
- asked by Mr.Wizard (9 votes), answered by ybeltukov (5 votes)
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[Multiple-colored regions on a Sphere in
Mathematica]\url{http://mathematica.stackexchange.com/questions/65174/multi
ple-colored-regions-on-a-sphere-in-mathematica}
The problem: I would like to draw a sphere where the bottom half is one
color, and the top half is split into 3 equal regions, each with its own
color.
I have come up with the following code, by ...
- asked by Nick Lassonde (8 votes), answered by Michael E2 (8 votes)
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[Is there a way to control V10's undo
length?]\url{http://mathematica.stackexchange.com/questions/65055/is-there-
a-way-to-control-v10s-undo-length}
This may be a duplicate (if so I will remove this), but I was having
trouble finding the relevant bit of documentation to fix it. I noticed
that my FrontEnd memory use was growing out of control when ...
- asked by DumpsterDoofus (8 votes), answered by rm -rf (6 votes)
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[What is the best way to draw a shaded
table?]\url{http://mathematica.stackexchange.com/questions/65356/what-is-th
e-best-way-to-draw-a-shaded-table}
I'm trying to format a raster-style table with row and column headings
and in which each cell is shaded according to the value in the cell, and
the value of the cell is displayed in as text in a ...
- asked by raxacoricofallapatorius (6 votes), answered by Arnoud Buzing
(7 votes)
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Greatest hits from previous weeks:
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[Get a "step by step" evaluation in Mathematica]
\url{http://mathematica.stackexchange.com/questions/148/get-a-s
tep-by-step-evaluation-in-mathematica}
Is it possible in Mathematica to get a step-by-step evaluation of some
functions; that's to say, outputting not only the result but all the
stages that have led to it?
Example : Let's say I want to ...
- asked by Skydreamer (58 votes), answered by J.M. (50 votes)
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[Why round to even integers?]
\url{http://mathematica.stackexchange.com/questions/2116/why-roun
d-to-even-integers}
According to the Mathematica help:
Round rounds numbers of the form x.5 toward the nearest even integer.
For example:
Round[{0.5, 1.5, 2.5, 3.5, 4.5}]
gives
{0, 2, 2, 4, 4}
What's the ...
- asked by wxffles (26 votes), answered by Per Alexandersson (22 votes)
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Can you answer these?
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[Sizing elements correctly in a DistributionChart with custom
ChartElementFunction]\url{http://mathematica.stackexchange.com/questions/65
395/sizing-elements-correctly-in-a-distributionchart-with-custom-chartel
ementfunctio}
This is a follow-up question to Histogram scale error when using
DistributionChart; Weird output of DistributionChart is also related.
I'd like to make a DistributionChart where the elements are ...
- asked by Daniel Weissman (1 vote)
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[Capturing microphone
data]\url{http://mathematica.stackexchange.com/questions/65276/capturing-mi
crophone-data}
How to capture current microphone data, just like using the function
CurrentImage[] for capturing image?
For example, this captures an image:
Dynamic [x = CurrentImage []; EdgeDetect [x, 3]]
But I ...
- asked by Dragan Mrakovic (3 votes)
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[How to download and combine S&P 500 stock
prices]\url{http://mathematica.stackexchange.com/questions/65386/how-to-dow
nload-and-combine-sp-500-stock-prices}
I want to download historical S&P 500 stock prices and combined them
into one big file, having only one column of date referencing all
stocks. Here is what I have do so far.
stdate = ...
- asked by rka (5 votes)