histogram

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Plot two histograms on single chart with matplotlib

I created a histogram plot using data from a file and no problem. Now I wanted to superpose data from another file in the same histogram, so I do something like this[详细]

2023-03-24 06:26 分类：问答
How to keep a dynamical histogram?

is there a known algorithm + data-structure to maintain a dynamical histogram? Imagine I have a stream of data (x_1, w_1) , (x_2, w_2), ... where the x_t are doubles, that represent some measured var[详细]

2023-03-24 01:19 分类：问答
opencv calcHist error

I am getting an ambiguity error in OpenCV when I am trying to calculate a histogram and was wondering if I was missing something. I took a look at the function parameters and saw that it took one of t[详细]

2023-03-22 13:03 分类：问答
Modify Legend using ggplot2 in R

I\'m currently using the ggplot package to plot a histogram of normal variates with a N(0, 1) density overlay. I\'m very new to this package and the code I\'m using is[详细]

2023-03-20 23:40 分类：问答
Smoothing of histogram with a low-pass filter in MATLAB

I have an image and my aim is to binarize the image. I have filtered the image with a low pass Gaussian filter and have computed the intensity histogram of the image.[详细]

2023-03-20 18:42 分类：问答
Matlab question: fixing the scale of Y axis in hist

I want to draw several histograms. But I want the Y a开发者_运维知识库xis to be fixed, like from 1000 to 1 by 100. How can I specify them。[详细]

2023-03-20 06:22 分类：问答
Tracking objects using histogram data in OpenCV

I am trying to track objects inside an image using histogram data from the object. I pass in a reference image to get the histogram data and store it in a Mat. From there I load in an image and try an[详细]

2023-03-19 23:25 分类：问答
How to modify table and create bins for histogram representation in R

I am a bit new to R and I was experimenting with ggplot. I have a table like this: table http://dl.dropbox.com/u/43697/temporary/data_frame.jpg[详细]

2023-03-18 04:50 分类：问答
How do I add the mean value to a histogram in R?

I would like to plot a histogram with mean (average) value on it (e.g. we could mark it with a blue and bold line).[详细]

2023-03-17 01:56 分类：问答
Finding the convolution of two histograms

The probability distribution of the sum of two random variables, x and y, is given by the convolution of the individual distributions. I\'m having some trouble doing this numerically. In the following[详细]

2023-03-16 12:41 分类：问答