problem about graphing-Collection of common programming errors

11 years ago
admin
3 minutes

  • Jason
    java graphing
    My professor gave us an assignment to test the difference in runtimes and search sizes using linear & binary algorithms, and the data is to be graphed.I have the search methods put the runtime & array sizes as Points in an ArrayList, which is then sent to the GraphResults class for plotting. I need to convert those data points into xy coordinates before. The search size is the x-axis and the runtime is the y axisAs the search sizes are fixed as a multiple of 128 and there are only 8 si

  • Owen Kelly
    java android graphing achartengine
    I wrote a practice app that solves quadratic equations and now I want to have the option to graph them with a button. Yet when I press the button the application crashes. Here is the code for the main program and the graphing one(located beneath): Main class: *note: I do have the necessary classes imported and the .jar.package com.test.quad; import java.text.DecimalFormat;import java.util.List; import android.util.Log;import android.app.Activity; import android.content.Intent; import android.os.

  • Gordon
    php graph graphing php-frameworks
    As an example making an line graph, with a transparent background behind the plot…preferably with anti aliased lines… This way the generated .png graphs can be more useful and easier to blend in with other content etc….I know php gd etc can output transparent background images… that’s not exactly what I’m asking for here: the closest I’ve come is using jpgraph for php, and then taking the image output back to php gd and making the white background transparent and outputting that as a .pn

  • calccrypto
    c++ graphing lightweight platform-independent
    What is the simplest to use c++ library that graphs functions like matlab and octave do? I have looked over several and have found similar major problems with all of them: i cannot compile an empty program that only has#include <iostream>#include “header_to_include.h”int main(){return 0; }i have found koolplot, some wxwidget stuff, sdl_graph, gnuplot++, and something with Qt. ive looked at some of the ones on the list here, but some are for other languages while others use installers or de

  • cdietschrun
    javascript csv d3.js graphing
    I have csv files that are generated, and I am trying to load them into d3 to graph them. The column names are based on the data, so I essentially can’t know them in advance. With testing, I am able to load this data and graph it all well and nice if I know the names of the columns…but I don’t in my use case. How can I handle this in d3? I can’t seem to find anything to help/reference this online or in the documentation. I can see when I log to the console data[0] from d3.csv that there are two

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