gnuplot easy histogram Post: 302488909

Sponsored Content

Top Forums UNIX for Dummies Questions & Answers gnuplot easy histogram Post 302488909 by Chubler_XL on Tuesday 18th of January 2011 07:38:35 PM

01-18-2011

Moderator

Firstly the X,Y coordinates need to be converted to polar (angle, radius) coordinates. Remember Pythagoras' theorem from school? Bet you thought you would never need that stuff! Anyway, atan2(y,x) and sqrt(x^2 + y^2) will do the job for you.

Also origin moves the graph on the page, it dosn't change the point that the impulse plot uses, I don't really know if this can be done. I just subtracted the origin values from your X,Y coordinates in the geta (get-angle) and getr (get-radius) functions:

Code:

#!/usr/bin/gnuplot -persist
set terminal png large size 1920,1200
set output '003A98B70A10_coverage.png'
set polar
set grid
set xrange [-200:200]
set yrange [-200:200]
set isosample 150
set palette defined (-100 "red", -95 "yellow", -85 "green")
xorig=1724850
yorig=7450200
geta(x,y)=atan2(y-yorig,x-xorig)
getr(x,y)=sqrt((x-xorig)*(x-xorig) + (y-yorig)*(y-yorig))
plot "003A98B70A10.log" using (geta($1,$2)):(getr($1,$2)):3 with impulses palette notitle

Chubler_XL

View Public Profile for Chubler_XL

Find all posts by Chubler_XL

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Need help on installing an EASY to use and easy to install command line text editor

Hi again. Sorry if it seems like I'm spamming the boards a bit, but I figured I might as well ask all the questions I need answers to at once, and hopefully at least get some. I have installed Solaris 10 on a server. The default text editors are there (vi, ex, ed, maybe others, I know emacs is...

2. UNIX and Linux Applications

GNUplot

Hi, I am trying to make a plot of an ASCII file using GNUplot, but I keep getting error msg: for example plot filename.txt It says that (.txt ) is not identified ... I tried to write it without the .txt part, but I also get the error msg. Any idea why? :confused:

3. UNIX for Dummies Questions & Answers

Gnuplot - Histogram Fitting

Hi I am trying to fit my histogram data with a gaussian model and am encountering two problems: 1. I can't seem to fit the histogram data with a model fit y(x) 'bin.txt' using 2:xtic(1) via a,b,c (error: need 2 to 7 using specs) 2. Even when I manually guess the correct parameters for my fit and...

4. UNIX for Dummies Questions & Answers

histogram or counter

Dear all, I have numerous dat files (a.dat, b.dat...) containing 500 numeric values each. I would like to count them, based on their range and obtain a histogram or a counter. INPUT: a.dat 1.3 2.16 0.34 ...... b.dat 1.54 0.94 3.13 ..... ...

5. Shell Programming and Scripting

AWK counting interval / histogram data

My data looks like this: frame phi psi 0 68.466774 -58.170494 1 75.128593 -51.646816 2 76.083946 -64.300102 3 77.578056 -76.464218 4 63.180199 -76.067680 5 77.203979 -58.560757 6 66.574913 -60.000214 7 73.218269 -70.978203 8 70.956879 -76.096558 9 65.538872 -76.716568...

6. Shell Programming and Scripting

awk for histogram

I have a single file that looks like this: 1.62816 1.62816 0.86941 0.86941 0.731465 0.731465 1.03174 1.03174 0.769444 0.769444 0.981181 0.981181 1.14681 1.14681 1.00511 1.00511 1.20385 1.20385

7. UNIX for Dummies Questions & Answers

Help with xmgrace histogram

Hi All, I am new to Grace and would like to plot histograms. My input files have one column for frequencies and another column for distances, for example: 1 2.6 4 2.7 5 2.8 2 3.9 2 4.0 4 4.7 4 4.8 4 4.9 ... I want to plot a histogram ranging from 0 to 10 with...

8. Programming

Frequency percentage distribution histogram with R

I am new to R and would like to calculate the percentage frequency distribution of h1 and h2. How can I combine h1 and h2 in one plot? I tried the following code. h1=c(5.18,4.61,3.30,7.58,3.00,3.80,1.95,2.67,2.77,2.73,2.33,3.36,3.50,1.91,4.25,3.87,2.86,2.26,2.00,3.86,3.33,3.59,4.00)...

9. Shell Programming and Scripting

awk Sort 2d histogram output from min(X,Y) to max(X,Y)

I've got Gnuplot-format 2D histogram data output which looks as follows. 6.5 -1.25 10.2804 6.5404 -1.25 10.4907 6.58081 -1.25 10.8087 6.62121 -1.25 10.4686 6.66162 -1.25 10.506 6.70202 -1.25 10.3084 6.74242 -1.25 9.68256 6.78283 -1.25 9.41229 6.82323 -1.25 9.43078 6.86364 -1.25 9.62408...

10. Shell Programming and Scripting

Generating histogram

Hi, I have 2 files with similar structure - reference and test that I would like to BIN both and generate the comparison. input files structure is: a 3 b 10 c 3 d 7 e 1 f 4 g 9 h 6 I would like the output to be (lets say both reference and test are the file above - no diff) BIN ...

LEARN ABOUT SUSE

geta

getr(3alleg4)                                                     Allegro manual                                                     getr(3alleg4)

NAME

       getr, getg, getb, geta - Extract a color component from the current pixel format. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       int getr(int c);

       int getg(int c);

       int getb(int c);

       int geta(int c);

DESCRIPTION

       Given  a color in the format being used by the current video mode, these functions extract one of the red, green, blue, or alpha components
       (ranging 0-255), calling the preceding 8, 15, 16, 24, or 32-bit get functions as appropriate. The alpha part is only meaningful for  32-bit
       pixels. Example:

          int r, g, b, color_value;

          color_value = getpixel(screen, 100, 100);
          r = getr(color_value);
          g = getg(color_value);
          b = getb(color_value);

SEE ALSO

       getr8(3alleg4), getr_depth(3alleg4), makecol(3alleg4), set_color_depth(3alleg4), exalpha(3alleg4)

Allegro                                                            version 4.4.2                                                     getr(3alleg4)