Hey i am trying to calculate a cosinor analysis in statistica but am at a loss as to how to do so. I need to calculate the MESOR, AMPLITUDE, and ACROPHASE of ciracadian rhythm data. http://www.wepapers.com/Papers/73565/Cosinor_analysis_of_accident_risk_using__SPSS%27s_regression_procedures.ppt there is a link that shows how to do it, t...
Hi, I have a set of training data consisting of 20 multiple choice questions (A/B/C/D) answered by a hundred respondents. The answers are purely categorical and cannot be scaled to numerical values. 50 of these respondents were selected for free product trial. The selection process is not known. What interesting knowledge can be mined f...
Hi stackoverflow friends, I'm trying to write a program to automate one of my more boring and repetitive work tasks. I have some programming experience but none with processing or interpreting large volumes of data so I am seeking your advice (both suggestions of techniques to try and also things to read to learn more about doing this s...
Anyone know how to take advantage of ggplot or lattice in doing survival analysis? It would be nice to do trellis/facet like survival graphs. So in the end I played around and sort of found a solution for a kaplan meier plot. Apologize for the messy code in taking the list elements into a dataframe, but I couldnt figure out another wa...
I am preparing for analyses of the determinants of partner choice in SPSS, but basically I can't get off the ground because I don't know how to create new variables based on the information of each respondent's spouse (i.e. education, wages, social background, ethnicity etc.). Each respondent is currently identified by an ID#, and exis...
Hi, I'm searching for software to do benchmarking, analysis, performance of code and apps. Something like Intel VTune. Can anyone give me some names, free or payed, targeting c# apps. thanks ...
I am busy preparing for exams, just doing some old exam papers. The question below is the only one I can't seem to do (I don't really know where to start). Any help would be appreciated greatly. Use the Ω(nlogn) comparison sort bound, the theta(n) bound for bottom-up heap construction, and the order complexity of insertion sort to show ...
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 Java6-specific) I don't necessarily want to hop through all ClassMismatchErrors and avoid the trial-a...
I'm thinking of making a little web tool for analyzing the search engine optimization and web accessiblity of a whole website. First of all, this is just a private tool for now. Crawling a whole website takes up alot of resources and time. I've found out that wget is the best option for downloading the markup for a whole site. I plan o...
Dear reader, I'm working on a blob matching and tracking library in C++. Currently I'm using openCV to detect blobs and try to match blobs in a new frame by checking the position, velocity and size of the blob. This works quite okay and I'm receiving a high blob match rate (95% or higher). Sometimes blobs fall out of the image or new b...
Hi I have a problem and I can not get the purpose of lines (14,15,16,17) of this site for Select algorithm please help me thanks the site which I have this question from it : http://webcache.googleusercontent.com/search?q=cache:2PhiYQ1r76kJ:www.cse.yorku.ca/~andy/courses/3101/lecture-notes/LN4.ps+Linear+general+selection+algorithm+code&...
I have written this code for myself(it is not a home work) I want to know is this correct?thanks Algorithm with time Θ (nlogn), which can provide an array of n members to determine whether two elements in the array that are equal to x and then return those elements Algorithm Sum(arr,1,n): MergeSort(arr) For i<-- 1 to n m<-- BinaryS...
Hi I have read a counting sort algorithm which is like this: Counting Sort(A[1,..n]) //C[1,...k] is the temporary memory and k is the range of integers for i<-- 1 to k C[i]<-- 0 for j<-- 1 to n C[A[j]]<--C[A[j]]+1 for i<--2 to k C[i]<--C[i]+C[i-1] for j<--n downto 1 B[C[A[j]]]<--A[j] C[A[j]]...
Hi! This is a counting sort algorithm. I want to change the last for loop of it to for j<---1 to n. I know that this will be correct, but I want to show this for one of my friends. How can I write my reason for it? Please help me! Thanks. Counting Sort(A[1,..n]) //C[1,...k] is the temporary memory and k is the range of integers ...
Hi I have found this question in the one site which was about counting sort algorithm and this question was an exercise ! I solved this and I want to know that is this correct? Exercise: Use The idea of Counting Sort algorithm and provide an algorithm with n integer in the range 0 to k, in time O (1) replied that how many of these n ele...
We are a small (15 ppl) webdevelopment/design company with around 8 fulltime LAMP developers. In order to reduce the amount of errors we make and to prevent our budgets overtaking our estimates i've introduced some sort of technical analysis of our projects before development kicks off. This is a no brainer for an application developer b...
Is the running time of the Merge algorithm O(n log k)? k is the number of lists. n is the total number of elements in all of the lists (n = n1 + n2 + ... + nk). algorithm MakingAHalf(List_Of_Lists) if List_Of_Lists.size() = 1 return the only list in List_Of_Lists else split List_Of_Lists into two halfs (Firs...
Hi, I am interested in determining the musical key of an audio sample. How would (or could) an algorithm go about trying to approximate the key of a musical audio sample? Antares Autotune and Melodyne are two pieces of software that do this sort of thing. Can anyone give a bit of a layman's explanation about how this would work? To ma...
Hi, everybody, Have several questions. Don't flame me - I'm newbie, but eager to know more. So: What is the difference between Software requirement specification (SRS) and Functional requirement specification (FRS)? Maybe, anybody can provide with links of both so that I could see the difference? What is system interactive architectur...
i'm searching for a way to analyze the camera's view live. the iphone should recognize and react to sudden changes in brightness. can you give me some hints? leave a comment if my question is not clear enough! ...