search for: velocity

Rers: I have some ecological data (stream velocity vs. % cover of submerged weeds) that shows strong evidence of a thresholding step-function, e.g. below some velocity, % cover ranges from 0% to 100% (with no apparent relationship to velocity within this range of velocities), but above a certain "threshold" velocity, the % cover does...

[Apologies in advance for the train of thought prose, but it is brainstorming after all…] I'm going to focus on self-descriptive names rather than literary or fantasy references… Advanced Compiler Kit, affectionately known as “ACK!”? It has an ill- deserved nod to NeXT, even. (Completely the wrong language, after all.) Core Compiler? Heh, I don't think that'd get past certain

Hello. I've just started using R and am trying to figure out if the two codes snippets below have the same output gBest<-floor(runif(popsize,min=1,max=top)) velocity[i,j]<<-.4* velocity[i,j] + 1 * runif(1) * (pbestsVar[i,j] - popVar[i,j]) + 1 * runif(1) * (archiveVar[gBest,j] - popVar[i,j]) and for (i in 1:popsize) { for (j in 1:maxvar) { gBest<-sample(top,size=1) velocity[i,j]<<-.4* velocity[i,j] + 1 * runif(1) * (pbestsVar[i,j] -...

...4 eth0 11.22.33.4 no no But then I have a situation where I need 11.22.33.44 to connect to a host in the net zone and appears also to be 1.2.3.5 not only 1.2.3.4. How to do it? TIA Willy ------------------------------------------------------------------------------ Register Now & Save for Velocity, the Web Performance & Operations Conference from O''Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance & Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http...

I have constructed a Trellis style xyplot. lengthf <- factor(length) xyplot(SLI$velocity ~ SLI$width | SLI$lengthf, layout = c(2,7), xlab = "Width (cm)", ylab = "Velocity (m/s^2)", col = "black") This produces a lovely little plot. However, the grouping factor(lengthf) isn't in the right order. My values range from 2-28 and the 2 graph on the bottom l...

Hello, does anyone knows this predict is not resulting? # lm predict dfTestes3sitesCriptic$Velocity_corrected <- ifelse (dfTestes3sitesCriptic$Season == "A" & dfTestes3sitesCriptic$BeforeAfter == "Before", (dfTestes3sitesCriptic$Velocity * mVel3ABefAfter), (ifelse (dfTestes3sitesCriptic$Season == "Sp" & dfTestes3sitesCriptic$BeforeAfter == "Before&quo...

Hi, i have this file pressure,k,eps,zeta,f,velocity:0,velocity:1,velocity:2,vtkValidPointMask,Point Coordinates:0,Point Coordinates:1,Point Coordinates:2,vtkOriginalIndices 0.150545,0.000575811,0.0231277,0.000339049,-0.0193008,0.00318629,-6.24066e-07,5.39599e-05,^A,7,0,0,0 0.150546,0.000782719,0.0226157,0.000497957,-0.0192084,0.00367781,5.09813e-06,...

...ve the following output generated by linear regression. Since there is only one regression intercept and one slope for one set of data, what is the meaning of std. error for intercept and that of slope? Thanks in advance. Sincerely, Minghua > data(thuesen) > attach(thuesen) > lm(short.velocity~blood.glucose) Call: lm(formula = short.velocity ~ blood.glucose) Coefficients: (Intercept) blood.glucose 1.09781 0.02196 > summary(lm(short.velocity~blood.glucose)) Call: lm(formula = short.velocity ~ blood.glucose) Residuals: Min 1Q Median 3Q Ma...

hello all, I have a data frame and I want to create a column which assigns a letter based upon the value in another column. The data column has velocities ranging from 0 to 1000. So for example, for velocities between 0 and 300 I'd like to assign the letter "A" in the new column, for 300-600, "B" and so on and so forth. How would I do this? Thank you very much! Mehdi

...testS) v [1] "met1^1*met2^1" "met2^1*met3^1" "met3^1" My next step is to use an ODE generating function to initialize values for the met variables. state = c(met1 = 10, met2 = 10, met3 = 10, met4 = 10, met5 = 10) parameters = 1 ODE = function(t, state, parameters, S, velocity) { with(as.list(c(state, parameters, S, velocity)), { des = S %*% v #The products should look like this: #dmet1 = (-1)*met1^1*met2^1 + (0)*met2^1*met3^1 + (2)*met3^1 #Return list(des) }) } When I call 'makeODE' I get the following error (which I expected): Error in S %*% v : require...

Dear helpers I have two data sets saved as vectors (temperature and velocity). Now I need to "take out" a span of temperature and its corresponding velocity in the other vector. How can I achieve that? I tried to write a function,which takes a vector entry and then decides wether to delete the temperature entry or not and simultaneously doing so with same entry...

Hello All, I am attempting to use the feather.plot function from the plotrix package to graph current velocity data as I have speed and direction. I let "r" be the first 10 rows of current speed data and "theta" be the first 10 rows of directional data in radians. I had tried this with 10 measurements, but keep getting the following error message: > feather.plot(r,theta,1:10,...

...e, 2D axial symmetry, geometry described by a radial coordinate r and an axial coordinate z) which I'd like to plot and analyze with R. Think about slicing the cylinder along its axial direction to get a set of cross sections which are orthogonal to the z axis. For each section, I have a set of velocity readings, i.e. the data I would like to plot are in the form: v_11 v_12 v_13 ..... v_1n v_21 v_22 v_23 ..... v_2n ...................................... v_m1 v_m2 v_m3 ..... v_mn where v_ij is the velocity reading on the i-th position along z and the...

...o, if we increase the rows_at_time to 1024 there are larger gaps between the 0's and actual data. The server is a sybase IQ database. We have tested it on a different database sybase ASE and we still get this issue. For example : We have the following query sqlString = "Select ActionID, Velocity from ActionDataTable" #where ActionID is of integer type and Velocity is of double type. connection = odbcConnect("IQDatabase"); #this database is a sybase IQ database sqlData = sqlQuery(connection, sqlString); sqlData$ActionID might be 1,2,3,4,5,6,....150, 0,0,0,0,0,0,0,....,0,0,...

...----------------------- My likelihood function looks something like this: lm<-function(x){ e<-x[1] k<-x[2] log(e) - n*log(k+1) + (k+1)*n*log(e-t)-k*sum(log(e-vg)) } -------------------------------------------------------------------------- The quantities n and t are known, and vg is my velocity data. I am minimizing this function using the function "optim" (BFGS option) to find k and e that minimize this. Also, my data set is small, only about 50 stars. Therefore, I was thinking that I could use the boot function to resample my data and solve the minimization for each resampl...

Hi! I was hoping there was a tool which would let me do something like: #flax -o existing.flac --append mytune.flac To merge the 2 files! Also; is it possible to change the velocity/gain of a flac track ? I would love to know how! Regards, Frans

...uggest the revised rules so that we may run this in non-transparent mode as mentioned above and still be able to view the internal webservers through port forwarding? Thanks in advance. Gaur ------------------------------------------------------------------------------ Register Now & Save for Velocity, the Web Performance & Operations Conference from O''Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance & Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http...

I am trying to get m"dot"s^-1 in a x-axis label for a publication ready graph. I can get ms^-1 with no problem, but I can't get the symbol for the "dot" to work. I am have tried the following: plot(x,y,xlab=expression(paste("Target Velocity (",ms^-1,")")),ylab="Passage Probability",ylim=c(0,1)) which works fine. I tried changing to: plot(x,y,xlab=expression(paste("Target Velocity (m",symbol("327"),s^-1,")")),ylab="Passage Probability",ylim=c(0,1)) which does not work...

Hi Everyone, LLVM is a growing project, and many of us are very fond of it. :) LLVM is continuing to grow, both in maturity in specific areas and in scope of areas that it is applicable to. When we first started the project, we focused on the design of the intermediate representation. It is a strong design goal that the IR be a self-contained virtual instruction set, which fully describes

I have a data frame (morgan) of hourly river flow, river levels and wind direction and speed thus: Time hour lev.morgan lev.lock2 lev.lock1 flow direction velocity 1 2009-07-06 15:00:00 15 3.266 3.274 3.240 1710.6 180.282 4.352 2 2009-07-06 16:00:00 16 3.268 3.272 3.240 1441.8 192.338 5.496 3 2009-07-06 17:00:00 17 3.268 3.271 3.240 1300.1 202.294 2.695 4 2009-07-06 18:00:00 18 3.267 3...