random

来源： https://stackoverflow.com/questions/63449211/scipy-von-mises-distribution-on-a-half-circle

来源： https://stackoverflow.com/questions/63449211/scipy-von-mises-distribution-on-a-half-circle

来源： https://stackoverflow.com/questions/63449211/scipy-von-mises-distribution-on-a-half-circle

问题 I have: x = rnorm(100) # Partie b z = rbinom(100,1,0.60) # Partie c y = 1.4 + 0.7*x - 0.5*z # Partie d x1 = abs(x) y1 = abs(y) Don<-cbind(y1,x1,z) Don1 <- data.frame(Don) Reg <- glm(y1~x1+z,family=poisson(link="log"),Don1) # Partie e #Biais de beta Reg.cf <- coef(Reg) biais0 = Reg.cf[1] - 1.4 biais1 = Reg.cf[2] - 0.7 biais2 = Reg.cf[3] + 0.5 And I need to repeat all this 100 times in order to have different coefficient and calculate the bias and then put the mean of each biais in a text file.

问题 I have: x = rnorm(100) # Partie b z = rbinom(100,1,0.60) # Partie c y = 1.4 + 0.7*x - 0.5*z # Partie d x1 = abs(x) y1 = abs(y) Don<-cbind(y1,x1,z) Don1 <- data.frame(Don) Reg <- glm(y1~x1+z,family=poisson(link="log"),Don1) # Partie e #Biais de beta Reg.cf <- coef(Reg) biais0 = Reg.cf[1] - 1.4 biais1 = Reg.cf[2] - 0.7 biais2 = Reg.cf[3] + 0.5 And I need to repeat all this 100 times in order to have different coefficient and calculate the bias and then put the mean of each biais in a text file.

问题 I am using SURF algorithm to match two images with OpenCV. And I have got the keypioints. Now I want to draw these keypoints with random colors circles. I know how to draw a circle in OpenCV with the function cvCircle, but the color is fixed with cvScalar(r,g,b) . I want the the color of the circle of a keypoint in a image is different to the circles near it. The library function cv::drawMatches() in OpenCV have the effect I want. But I don't know how to realize it. Does anyone who can tell

问题 This question already has answers here : Random numbers in C (10 answers) How can I generate different random numbers for each player? (3 answers) Closed 2 years ago . So I was creating a program that would call a function and return 0 or 1 (0 meaning tails and 1 meaning heads) and then use that to print the outcome of 100 flips. It seemed simple enough thinking I could use srand(time(NULL)) to seed rand() with constantly varying seeds. Here was my first crack. #include <stdio.h> #include

问题 This question already has answers here : Random numbers in C (10 answers) How can I generate different random numbers for each player? (3 answers) Closed 2 years ago . So I was creating a program that would call a function and return 0 or 1 (0 meaning tails and 1 meaning heads) and then use that to print the outcome of 100 flips. It seemed simple enough thinking I could use srand(time(NULL)) to seed rand() with constantly varying seeds. Here was my first crack. #include <stdio.h> #include

问题 I am trying to generate the same list of random sequences using the function "genKeys". Using the same seed, I will get the same list, but only on my Laptop. Running this code on my Raspberry Pi, I get a completely different list. I guess the RNG is different. Is there a way to "unify" the way numbers being generated or to implement an algorithm that will generate the same numbers? def genKeys(number, seed, length): rng = random.Random(seed) seq =

问题 I am trying to generate random numbers using std::random_device but each time I run the program they are the same. I tried the same code using an online IDE and it ran as expected. According to an answer here, this is a bug in Cygwin and MSYS2. How can I upgrade MSYS2? I tried running the commands pacman -Syu and pacman -Su in its terminal but it had errors: MSYS ~ $ pacman -Syuu error: mingw32: key "4A6129F4E4B84AE46ED7F635628F528CF3053E04" is unknown error: key