Compare values with a static and global table in C++

Question

I am working on statistical analyses in my field, and using c++. I am implementing several tests, and some of them need to compare the calculated value with a table, say a distribution table for example, like this one.

I want my different functions in my different classes to be able to access a specific value, to evaluate the significance of my result, for example something like this:

float F = fisherTest(serie1, serie2);
auto tableValue = findValue(serie1.size(), serie2.size());

if(tableValue < F) {
        cout << "Not significant";
        return -1;
    }

This is just an example, as this test actually makes no sense. But I just want to be able to read values from a predefined table.

Do you have an idea of how I can achieve this? Can I store this in a "resource file"?

I hope my question is clear! Thank you.

@UKMonkey I thought of that but I believe these are complex statistical tables, so several equations is my guess — Andre Debuisne, Oct 19 '17 at 15:14
you could pull in [the table as a .csv](https://stackoverflow.com/questions/34218040/how-to-read-a-csv-file-data-into-an-array) text file perhaps and build an array. that would be easy enough. — Philip Brack, Oct 19 '17 at 15:15
Check http://en.cppreference.com/w/cpp/numeric/random/fisher_f_distribution — Passer By, Oct 19 '17 at 15:18

score 0 · Answer 1 · answered Oct 19 '17 at 15:17

0

You can have some data files and pass a configuration during startup (e.g. commandline) to the application so it can find the files and read them. The data structure can then be fed to the test.

answered Oct 19 '17 at 15:17

stefaanv

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score 0 · Answer 2 · answered Oct 19 '17 at 15:18

It is possible to get the predefined data from several sources:

Hard coded tables in your program.
One or more functions that can compute the data on demand.
Files on your local disk.
Data stored in a database server.

You and your team need to decide which makes the most sense for your application.

Compare values with a static and global table in C++

2 Answers2