search for: perception

Displaying 20 results from an estimated 378 matches for "perception".

2009 May 09
1
for loop
Hi, I need your help. I have a vector of numbers reflecting the switch in the perception of a figure. For a certain period I have positive numbers (which reflect the perception A) then the perception changes and I have negative numbers (perception B), and so on for 40000 iterations. I need to take the rate of this switch for my analysis. Namely, I need a new vector with numbers which r...
2007 Aug 24
4
perception of graphical data
Hello, I apologize that this is off-topic. I am seeking information on perception of graphical data, in an effort to improve the plots I produce. Would anyone point me to literature reviews in this area? (Or keywords to try on google?) Is this located somewhere near cognitive science, psychology, human factors research? For example, some specific questions I have are: I rec...
2002 Aug 16
0
Color perception during encoding
...#39;t find another feedback address on the Ogg Theora site. What I want to tell the people who are making a GUI (Graphical User Interface) for a Theora encoder is. If you intend to add a color adjuster to your encoder program, make the GUI a boring NEUTRAL GRAY! The reason is that human color perception of one part of the screen is influenced by the color of another part of the screen next to it. For example, if you had a GUI that is bright green, and you adjusted the color of the video using that GUI. Then the video would look wrong in a video player with a red GUI. This is also the reason...
2005 Mar 09
1
Newbies perceptions and questions
Hi, I found rails on internet when I looking for some ''better'' way how to create web applications. I read tutorial 4 days on rails and I have 3 questions 1. How speed is it? (very slow on my testing machine, but that is P100 with 64Mb RAM, what''s enough for php or rhtml :)) 2. How does it work... I create table categories, I create model and controller category, but
2009 Jan 11
6
Why does ActiveRecord allow perception of success when updating an ID, however it doesn't really work(i.e. no change in database)?
Hi, Why does ActiveRecord allow perception of success when updating an ID, however it doesn''t really work(i.e. no change in database)? Here''s an example. The update of "id" versus update of a non-existent attribute. ?> ai = AccountItem.find(:first) => #<AccountItem id: 1, account_id: 1, date: "200...
2007 Aug 08
3
Subject: Re: how to include bar values in a barplot?
...elements in a display serve different purposes, according to the psychological aspects of visual preception. Sizes, proportions, colours etc. of shapes (bars in a histogram, the marks representing points in a scatterplot, ... ) are interpreted, so to speak, "intuitively" -- the resulting perception is formed by processes which are hard to ascertain consciously, and the overall effect can only be ascertained by looking at it, and noting what impression one has formed. They stimulate mental responses in the domain of perception of spatial relationships. Numbers, and text, on the other hand, wh...
2009 May 10
1
Function recommendation for this study...
...ch patient somehow has roughly 3 doctors, or 3 rows of data. The goal is to assess by category of each question or DV the agreement between the patient and 3 doctors. For example, a question may be asked about how well the treatment is understood by the patient, and the patient answers with their perception, while the 3 doctors each answer with their perception. The person currently working on this has used a Wilcoxon Sign Rank test, and asked what I thought. Personally, I shy away from nonparametrics and prefer parametric Bayesian methods, but of course am up for whatever is most appropriate. I wa...
2011 Jul 02
2
speeding up perception
Dear R developers: R is supposed to be slow for iterative calculations. actually, it isn't. matrix operations are fast. it is data frame operations that are slow. R <- 1000 C <- 1000 example <- function(m) { cat("rows: "); cat(system.time( for (r in 1:R) m[r,20] <- sqrt(abs(m[r,20])) + rnorm(1) ), "\n") cat("columns: "); cat(system.time(for (c
2009 Jul 07
2
rle
Hallo, I have an other problem, I have this vector signData with an alternation of 1 and -1 that corrispond to the duration of two different percepts. I extracted the durations like this: signData<- scan("dataTR10.txt") dur<-rle(signData)$length Now I would like to extract only the positive duration, e.g. signData <- c(1,1,1,1,-1,-1,-1,1,1,-1,-1) posduration <- c(4,2) I
2007 Aug 04
2
Invert Likert-Scale Values
Hi! I am using R to process some community survey data. Several item responses are recorded via a 7-point Likert-Scale. As I have coded the responses, 1 represents high agreement, and 7 high disagreement. This of course impacts the coefficients in a linear regression (of example agreement to self-perception measures on housing satisfaction). For some purposes, in order to make the coefficients more accessible to the reader, I would like to invert the item values, i.e. to arrive at 1 for high disagreement, and 7 for high agreement (such that the linear regression would express something like "the...
2011 Feb 01
3
[LLVMdev] Official git mirroring of llvm, clang, lldb, test-suite, etc.?
...o use svn (the official blessed >> LLVM SCM) on "our side," pray tell, what _are_ we supposed to use? > > Because LLVM chose to use svn at some point on the past (when > distributed tools were not so mature and undestood as they are now) and > because there is no enough perception of the advantages associated with > a change, it is no excuse for you not doing what is most convenient for > your work. We could switch back to CVS... -Chris
2016 Apr 16
0
Mean of hexadecimal numbers
...mple-minded approach would split them into 3 hex numbers, and average those (using Bert's solution). A more sophisticated approach would take into account that they are really colours. You could probably put together something using the colorRamp or colorRampPalette functions to average in perception space. For example, # Average the 1st two by taking the middle colour of a 3 colour palette x <- colorRampPalette(c("#FF7C00","#00BF40"), space = "Lab")(3)[2] # Average in the third by taking the 2nd of a 4 colour palette, so x # gets twice the weight colorRamp...
2017 Nov 03
3
low end file server with h/w RAID - recommendations
...aling with RAID, I do prefer GUI interface, as it is much harder to screw up when you use 3ware web interface, compared to, say, 3ware command client interface, the last being much better and clearer than LSI command client... Again, it can be just me, or it can be the same for many people that our perception of things in GUI is less prone to grave mistakes. Valeri > 3ware used to make good > cards, > though also expensive. > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos > +++++...
2010 May 11
1
comparing and combing files
...S Biological process unclassified - A_51_P100174 NM_008613.2 - MEIOSIS-SPECIFIC NUCLEAR STRUCTURAL PROTEIN 1 Developmental processes Meiosis A_51_P100218 NM_134198.1 Vomeronasal receptors type 1,GPCRs rhodopsin-like superfamily VOMERONASAL PHEROMONE RECEPTOR Signal transduction,Sensory perception Cell surface receptor mediated signal transduction,Pheromone response A_51_P100227 NM_023579.4 HEAT,Importin-betas N-terminal,Armadillo-like helical IMPORTIN BETA-3,IMPORTIN BETA Intracellular protein traffic,Biological process unclassified,Nucleoside, nucleotide and nucleic acid metabolism,T...
2009 Feb 02
6
Problems in Recommending R
...1) The website looks a bit old. While the current website does have a lot of hard work behind it, should n't a world class statistics package have a better website instead. You can check out www.knime.org which is an open source software , and free, and supports R---and notice the change in perception . Best Regards, Ajay Ohri www.decisionstats.com [[alternative HTML version deleted]]
2016 Feb 13
6
heads up: /boot space on kernel upgrade
...IIRC, was the >> default /boot size at the time. > > As a matter of interest, is there any advantage today > in having a /boot partition? > I thought it went back to the days when the boot-loader > had to be near the beginning of the disk? > It is interesting to observe how perceptions are changing over time. Decade or two ago we were partitioning small then drives (thus loosing some of the space) just to separate regular users from those places vital for secure and reliable running of the system. Security. There days I bet there will be multiple experts who will bag me to death...
2009 Apr 15
3
Kruskal's MDS results
...soMDS, MASS package). The 'goodness of fit' is reported as "The final stress achieved (in percent)". What does this mean exactly? I've tried to google for an answer but I've not come up with a definitive answer. Regards, Dieter -- Dieter Vanderelst PhD Student Active Perception Lab University of Antwerp http://batbits.webnode.com/ Postal Address: Prinsstraat 13 B-2000 Antwerp Belgium
2005 Mar 07
2
Setting up asterisk with current PBX?
We currently have a Toshiba Perception EX and I would like to start moving toward VOIP. Is there anyway we can run these two systems in parrallel? Better yet, is there anyway we can run fully on asterisk using the current PBX hardware? The current PBX has a mix of analog, digital and electronic cards in it. I tried to google for adv...
2023 Aug 07
2
Packet Timing and Data Leaks
...erms of code complexity and > network usage. I also don't like the idea of imposing random jitter though > that might be easier to implement. However, without actual modeling I have no > idea if that would actually improve things. Nagle is usually turned off because it causes annoying perceptions of non-deterministic latency. For ssh, IMO sending interactive traffic on a fixed clock (e.g. every 2-4ms) instead of as soon as possible, and adding fake keystroke packets for some interval after the user stops generating traffic is the way to fix it. I've slowly been preparing for this by r...
2017 Jan 09
4
Small file performance
Hi Volker, Thanks for the response. The clients are Win 7, Win 10 and various flavours of Linux, with Samba client versions ranging from 3.6 to 4.5.3. There is no perceptible difference between any of them. Network latency is never above 0.2s and mostly sits at around 0.1s. If that's a problem it is so only for Samba. I did as you suggested with the smb options but that just made it