Top "Histogram" questions

Difference between contrast stretching and histogram equalization

I would like to know the difference between contrast stretching and histogram equalization. I have tried both using OpenCV and …

histogram contrast stretching

Spacing between bars in matplotlib hist() with thousands of bins

I'm making histograms using matplotlib's hist() function or bar(), and I want to use >10,000 bins (one bin to represent …

python matplotlib histogram bar-chart

Dividing a range into bins in matlab

I have the following range from a much larger matrix : range(a) ans = 94 153 144 59 79 90 131 64 My professor is asking us to: Divide …

matlab range histogram bins

Setting a relative frequency in a matplotlib histogram

I have data as a list of floats and I want to plot it as a histogram. Hist() function does …

python matplotlib histogram frequency

How to force a y axis to minimum and maximum range in R?

If you look at the graph below (y axis), you will notice that the scale is from 0 to 0.20. I have …

r ggplot2 histogram

pylab histogram get rid of nan

I have a problem with making a histogram when some of my data contains "not a number" values. I can …

python numpy matplotlib histogram nan

Normalizing y-axis in histograms in R ggplot to proportion by group

My question is very similar to Normalizing y-axis in histograms in R ggplot to proportion, except that I have two …

r ggplot2 histogram

Histogram in matplotlib, time on x-Axis

I am new to matplotlib (1.3.1-2) and I cannot find a decent place to start. I want to plot the …

python time matplotlib plot histogram

Cannot get histogram to show separated bins with vertical lines

Annoying strange problem and I have not been able to find a solution on this site yet (although the question …

python numpy histogram

How can I visualize a histogram with Promdash or Grafana?

I'm attracted to prometheus by the histogram (and summaries) time-series, but I've been unsuccessful to display a histogram in either …

histogram grafana prometheus