Re: [Gnuplot-info] Histogram/Bar Plot Troubles

[arnold4life <chr...@ho...>]

The datafile just has two columns, the first has male percentages, the second
female percentages.


Thomas Sefzick wrote:
> 
> maybe you could post the datafile too
> 
> 
> arnold4life wrote:
>> 
>> Hi all, 
>> 
>> I'm a novice with gnuplot and I'm trying to make a histogram or bar plot
>> that looks like the following:
>>  http://old.nabble.com/file/p30208070/grades.png 
>> 
>> but I can't for the life of me get a gnuplot script to do this. I can get
>> frequency on the y-axis but I want to get a percentage, and my
>> male/female columns overlap with the same color on output:
>>  http://old.nabble.com/file/p30208070/grades.jpg 
>> 
>> The data file I'm using has one column of male percentages and one of
>> female percentages. Here's my horrible script: 
>> 
>> set term postscript 
>> set output 'grades.ps' 
>> 
>> bin_width = 20.0	
>> set style fill solid 1.00 border -10 
>> set style data boxes 
>> #set style boxes cluster gap 1 
>> set bmargin 10 
>> set ylabel "Percentage of Students" 
>> set xlabel "Grade Percentage" 
>> set yrange [0.0:140.0] 
>> #set xtics ("100%-125%" 100.0:125.0, "75%-99%" 75.0:99.0, "50%-74%"
>> 50.0:74.0, "25%-50%" 25.0:50.0, "0%-24%" 0.0:24.0) 
>> set xtics 20 
>> bin_number(x) = floor(x/bin_width) 
>> rounded(x) = bin_width * ( bin_number(x)) 
>> UNITY = 1 
>> plot 'grades_distribution.data' u (rounded($1)):(UNITY) t 'Male' smooth
>> frequency w boxes fs solid 5,\ 
>>         '' u (rounded($2)):(UNITY) t 'Female' smooth frequency w boxes fs
>> solid 3 
>> 
>> 
>> Any help is greatly appreciated, thanks!
>> 
>> 
> 
> 

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