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Questions tagged [analysis]

Analysis is the process of searching code, documents, or data to answer a particular question or predict a particular result.

References

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Courses etc. for developing an automated trading algorithm?

Does anyone know of any courses etc for teaching people how to learn how to apply technical analysis and trading mechanics to the development of an automated trading algorithm?
John
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Tool for checking source for dependencies on specific Java versions

Is there a quick way (e.g. tool) to detect, from the source (or maybe even from compiled classes), which parts of an application call Java API methods that are only implemented in a specific Java version? (e.g. which parts of my app are…
Gregor
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Utilise Surv object in ggplot or lattice

Anyone knows how to take advantage of ggplot or lattice in doing survival analysis? It would be nice to do a trellis or facet-like survival graphs. So in the end I played around and sort of found a solution for a Kaplan-Meier plot. I apologize for…
Misha
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What is the (worst-case) time analysis for the following loop?

Here is some code for an integer variable n: while (n > 0) { n = n/10; // Use integer division } I am trying to find the worst-case time analysis for this loop. O(n) is new to me and I am having difficulty with…
Ken
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R Package to Analyse Eye Tracking data

I was wondering if anyone out there has found a nice package for R to analyse eye-tracking data? I came across eyetrackR but as far as I can tell there is no English support documentation…
Docconcoct
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Set R to include missing data – How can is set the `useNA="ifany"` option for `table()` as default?

In many cases being aware of missing data is crucial and ignoring them can seriously impair your analysis. Therefore I'd like to set the useNA = "ifany" as default for table(). Ideally similar to options(stringsAsFactors = FALSE) I found an ugly…
Rico
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1772 of Caribbean online judge giving a time limit exceeded error. please help me find why is my algorithm taking so long

So I am trying to solve the problem 1772 of the Caribbean online judge web page http://coj.uci.cu/24h/problem.xhtml?abb=1772, the problem asks to find if a substring of a bigger string contains at least one palindrome inside it: e.g. Analyzing the…
Angel Durán
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Stuck with O notation

I am comparing two algorithms, Prim's and Kruskal's. I understand the basic concept of time complexity and when the two work best (sparse/dense graphs) I found this on the Internet, but I am struggling to convert it to English. dense graph: Prim =…
tommy
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IIS logs questions

I have few questions related to iis logs: 1)I have noticed many iis logs contain the same information but row are duplicated, why is it so? 2)For the same cookie in some rows Asp.net sessionID remain missing. For example if there are 5 rows for the…
Naresh
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I need help understanding how to find the Big-Oh of a code segment

My Computer Science II final is tomorrow, and I need some help understanding how to find the Big-Oh for segments of code. I've searched the internet and haven't been able to find any examples of how I need to understand it. Here's a problem from our…
chutch1122
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What replaced SADT?

Before everything became "enterprise", there was a time, when everything was "structured". About 20 years ago structured analysis and structured design (SADT), together with CASE tools promised salvation to many IT proferssionals. While the hype…
Martin Drautzburg
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Eclipse sonar plugin vs findbugs+pmd+checkstyle eclipe plugins

We are trying to install a CI Platform with (Jenkins,sonar,eclipse ...). So that every developer can make analysis on his code before commit, I'm wondering between two alternatives : running local analysis with the sonar plugin. install the…
gbenmansour
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Error: L-BFGS-B needs finite values of 'fn'

I have a correlation matrix and when I try to run a maximum-likelihood factor analysis on it using the "factanal" function I get the following error: factanal(covmat=matches_adjusted, factors=5, rotation=none, na.omit(matches_adjusted)) Warning in…
Werner Hertzog
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Using ffmpeg (or similar) to print detailed h264 information

I have some h264 video in mpeg transport stream, and I suspect at certain points in the video it switches from 1080i/50Hz to 1080p/25Hz. I'd like to prove that using some video analysis tool. Can ffmpeg (or similar) print out such detailed decoding…
gimmeamilk
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How to add Big O and Big omega

If an algorithm has two sub algorithm, when it is best case for sub algorithm A1 to the given input, it is the worst case for sub algorithm A2. How could I find the overall algorithm complexity? Simply I mean Ω(N) + O(N)=? I know if the algorithms…
Mobi
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