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bio website rodrigomurta.com
location Brazil
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visits member for 2 years, 3 months
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abouteMe={physicist, data scientist, programmer, Lover of Science and Math}

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Dec
18
comment Difference between Association and Dispatch
Interesting, tks +1
Dec
18
comment Difference between Association and Dispatch
@LeonidShifrin nice, it works!.. Lookup[Association@{1 -> "test", 2 -> "test"}, {1, 2, 3}, Null] do the work. I believe you should answer this.
Dec
15
comment Creating REST Web Service with webMathematica
@RolfMertig interesting. In the same directory there is a Documentation folder with a nb about Web Service, but no REST implementation either.
Dec
11
comment 10.0.2 mapping Association to Dataset warning
I get the same in V10.0.2 for MAC
Dec
11
comment Copying one symbol into another
Tks. Very interesting. +1
Dec
11
comment Error changing Dataset using Part
StringReplace[%,"V10.0.1"-> "V10.0.2"]
Dec
6
comment BUG: AssociationMap loses definition
I tested for 10.0.1 for Microsoft Windows (64-bit) and for Mac. I can't reproduce it.
Nov
30
comment How to abort on any message generated?
Related stackoverflow link: stackoverflow.com/questions/7987162/…
Nov
28
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.
Nov
28
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
Nov
28
comment Visual representation of a Ranking over time (image provided)
Almost no difference using Interpolation[#, InterpolationOrder -> 2, Method -> "Spline"]& instead of AkimaInterpolation.
Nov
28
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
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
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
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
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.