cdf

r : ecdf over histogram

℡╲_俬逩灬. 提交于 2019-12-03 16:35:53
in R, with ecdf I can plot a empirical cumulative distribution function plot(ecdf(mydata)) and with hist I can plot a histogram of my data hist(mydata) How I can plot the histogram and the ecdf in the same plot? EDIT I try make something like that https://mathematica.stackexchange.com/questions/18723/how-do-i-overlay-a-histogram-with-a-plot-of-cdf symbolrush Also a bit late, here's another solution that extends @Christoph 's Solution with a second y-Axis. par(mar = c(5,5,2,5)) set.seed(15) dt <- rnorm(500, 50, 10) h <- hist( dt, breaks = seq(0, 100, 1), xlim = c(0,100)) par(new = T) ec <- ecdf

Excel绘制CDF图

匿名 (未验证) 提交于 2019-12-02 23:36:01
对如下20个原始数据绘制cdf图 1. 对数据进行排序,从小到大 2. 计算累积分布: 计算公式为: 然后对C3下拉,得到累积分布数据。 3. 选中B、C两列绘制散点图: 文章来源: https://blog.csdn.net/u013431916/article/details/90729505

CDF, matplotlib - not enough colors for plot, python

泄露秘密 提交于 2019-12-02 11:35:39
问题 Here is needed to plot CDF for 8 different functions in one plot. The problem that it gives just 7 different colors and the 8 one gives just first blue color again. How to make 8 different colors? Here is the script: locerror_2d=[Scan_Around[1],Triangle_Around[1],M_shape_Around[1],Hilbert_Around[1],Scan_SbS[1],Triangle_SbS[1],M_shape_SbS[1],Hilbert_SbS[1]] # N = len(locerror_2d[0]) #same for all ( here, I hope so... ) # N1=len(locerror_2d[2]) H_cent,h_cent1 = np.histogram( locerror_2d[0],

CDF, matplotlib - not enough colors for plot, python

帅比萌擦擦* 提交于 2019-12-02 03:51:54
Here is needed to plot CDF for 8 different functions in one plot. The problem that it gives just 7 different colors and the 8 one gives just first blue color again. How to make 8 different colors? Here is the script: locerror_2d=[Scan_Around[1],Triangle_Around[1],M_shape_Around[1],Hilbert_Around[1],Scan_SbS[1],Triangle_SbS[1],M_shape_SbS[1],Hilbert_SbS[1]] # N = len(locerror_2d[0]) #same for all ( here, I hope so... ) # N1=len(locerror_2d[2]) H_cent,h_cent1 = np.histogram( locerror_2d[0], bins = 10, normed = True ) # Random Walk Centroid hy_cent = np.cumsum(H_cent)*(h_cent1[1] - h_cent1[0]) H

Use the cumulative distribution function of Weibull in R

扶醉桌前 提交于 2019-12-02 00:17:14
问题 I have to simulate a system's fail times, to do so I have to use the Weibull distribution with a "decreasing hazard rate" and a shape of "0.7-0.8". I have to generate a file with 100 results for the function that uses random numbers from 0 to 1. So I've been searching a bit and I found this R function: pweibull(q, shape, scale = 1, lower.tail = T, log.p = F) There are some other (rweibull,qweibull...) but I think this is the one that I have to use, since is the cumulative distribution one, as

Rcpp implementation of mvtnorm::pmvnorm slower than original R function

人盡茶涼 提交于 2019-12-01 08:19:04
问题 I am trying to get a Rcpp version of pmvnorm to work at least as fast as mvtnorm::pmvnorm in R. I have found https://github.com/zhanxw/libMvtnorm and created a Rcpp skeleton package with the relevant source files. I have added the following functions which make use of Armadillo (since I'm using it across other code I've been writing). //[[Rcpp::export]] arma::vec triangl(const arma::mat& X){ arma::mat LL = arma::trimatl(X, -1); // omit the main diagonal return LL.elem(arma::find(LL != 0)); }

Read file and plot CDF in Python

ε祈祈猫儿з 提交于 2019-11-30 05:24:44
I need to read long file with timestamp in seconds, and plot of CDF using numpy or scipy. I did try with numpy but seems the output is NOT what it is supposed to be. The code below: Any suggestions appreciated. import numpy as np import matplotlib.pyplot as plt data = np.loadtxt('Filename.txt') sorted_data = np.sort(data) cumulative = np.cumsum(sorted_data) plt.plot(cumulative) plt.show() tmdavison You have two options: 1: you can bin the data first. This can be done easily with the numpy.histogram function: import numpy as np import matplotlib.pyplot as plt data = np.loadtxt('Filename.txt') #

MATLAB分布拟合工具箱distributionFitter

生来就可爱ヽ(ⅴ<●) 提交于 2019-11-30 03:32:54
借助MATLAB(R2017b)分布拟合工具箱distributionFitter,我们可以快速地检查数据的分布。 可以进行非参数密度估计(核平滑方法)和参数密度估计(Beta分布、gamma分布、Normal分布等十几个常用的参数模型)。 给出参数估计结果: Distribution: Generalized Extreme Value Log likelihood: 17147.7 Domain: -Inf < y < Inf Mean: 0.00159053 Variance: 3.21144e-07 Parameter Estimate Std. Err. k 0.0506112 0.0163658 sigma 0.000411493 6.76348e-06 mu 0.0013314 8.99602e-06 Estimated covariance of parameter estimates: k sigma mu k 0.00026784 -3.4765e-08 -5.72776e-08 sigma -3.4765e-08 4.57446e-11 2.81887e-11 mu -5.72776e-08 2.81887e-11 8.09283e-11 可视化pdf、cdf、inverse cdf、概率图(PP图)、Survivor func(互补累积分布函数

Logarithmic plot of a cumulative distribution function in matplotlib

佐手、 提交于 2019-11-29 17:22:56
问题 I have a file containing logged events. Each entry has a time and latency. I'm interested in plotting the cumulative distribution function of the latencies. I'm most interested in tail latencies so I want the plot to have a logarithmic y-axis. I'm interested in the latencies at the following percentiles: 90th, 99th, 99.9th, 99.99th, and 99.999th. Here is my code so far that generates a regular CDF plot: # retrieve event times and latencies from the file times, latencies = read_in_data_from

Read file and plot CDF in Python

不羁的心 提交于 2019-11-29 03:48:33
问题 I need to read long file with timestamp in seconds, and plot of CDF using numpy or scipy. I did try with numpy but seems the output is NOT what it is supposed to be. The code below: Any suggestions appreciated. import numpy as np import matplotlib.pyplot as plt data = np.loadtxt('Filename.txt') sorted_data = np.sort(data) cumulative = np.cumsum(sorted_data) plt.plot(cumulative) plt.show() 回答1: You have two options: 1: you can bin the data first. This can be done easily with the numpy