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bio website rodrigomurta.com
location Brazil
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visits member for 2 years, 2 months
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abouteMe={physicist, data scientist, programmer, Lover of Science and Math}

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3h
comment Visual representation of a Ranking over time (image provided)
data can be created using MapIndexed[{Last@#2, #1} &, Transpose@vals, {-1}]. I learned Riffle third argument from your answer.
13h
comment Visual representation of a Ranking over time (image provided)
Ok! You are right. Curves don't dance so much with Akima (a kind of bad music interpolation). Tks
1d
comment Visual representation of a Ranking over time (image provided)
Almost no difference using Interpolation[#, InterpolationOrder -> 2, Method -> "Spline"]& instead of AkimaInterpolation.
1d
comment Visual representation of a Ranking over time (image provided)
Interesting... I have a nice application for that chart. +1
Nov
15
comment Ways to overcome failure of TextRecognize on relatively simple price tag?
Just by curious. Is this a real World problem? If yes, do you more sample tags? Do you need all the label texts?
Nov
11
answered What is the best way to draw a shaded table?
Nov
11
comment How do I remove Wolfram Branding in a CDF?
@GustavoDelfino, they are working on it. CDF player 10 should have this and another nice news.
Nov
10
accepted Using 0 to create new columns in a list with Part
Nov
10
awarded  Nice Question
Nov
10
comment How to prevent Round with hided fractions
I use it to create a SQL insert statement, where numbers are rounded to prevent unnecessary file size. My insert get much more fast with this rounded "bulk" mechanist. I'll post a question/answer showing how it works, it's interesting to be shared.
Nov
10
comment How do you round numbers so that it affects computation?
@ChrisDegnen I'm using N@Round[100*4.811,1/100] to solve that. But take care with automatic Map compilation, details here: 65298
Nov
10
comment How to prevent Round with hided fractions
Tks @Mr.Wizard, but I need it as numbers. Now I'm using N@Round[4.811, 1/100]. I have some problems with automatic compilation, but now it's ok. OutputForm has problems with big numbers, and InputForm works just nice.
Nov
10
revised How to prevent Round with hided fractions
edited title
Nov
10
revised How to prevent Round with hided fractions
edited title
Nov
10
comment How to prevent Round with hided fractions
Yes, corrected myround to round. N@Round[4.811, 1/100] is much faster. tks +1
Nov
10
revised How to prevent Round with hided fractions
deleted 2 characters in body
Nov
10
asked How to prevent Round with hided fractions
Nov
9
comment How do you round numbers so that it affects computation?
There are some problems with Round. For example, try Round[4.811] and you get 4.8100000000000005, not 4.81 as expected.
Nov
8
comment Using 0 to create new columns in a list with Part
Very interesting to know.
Nov
8
comment Using 0 to create new columns in a list with Part
Now I want to understand what kind of Black Mathic is this! How is this pure function actually working? Any link? +1