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plot_histogram should show better when very spread results #13066

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1ucian0 opened this issue Sep 2, 2024 · 4 comments · May be fixed by #13294
Open

plot_histogram should show better when very spread results #13066

1ucian0 opened this issue Sep 2, 2024 · 4 comments · May be fixed by #13294
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type: enhancement It's working, but needs polishing

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@1ucian0
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1ucian0 commented Sep 2, 2024

What should we add?

With bigger systems, results are sometimes very sparse (meaning, a lot of results with very low count). Take the following result (it comes from an execution in qiskit-aer with noise, but irrelevant for this point):

result = {'011011100000001': 1, '111110011010010': 1, '111010010111000': 1, '100100101110001': 1, '000101111110010': 1, '101010000001010': 1, '110001000011111': 1, '111010111011000': 1, '111100011011111': 1, '111001000010001': 1, '101101111000000': 1, '000000111101010': 1, '110001110010011': 1, '010111101001111': 1, '100011010010111': 1, '101110110010101': 1, '000111000000000': 1, '000110000100010': 1, '111001011011110': 1, '110010100101001': 1, '100001110110011': 1, '000110100001000': 1, '101011100001100': 1, '111101011111110': 1, '000001011010110': 1, '101100010111100': 1, '101001110011000': 1, '100011100111100': 1, '001011101011000': 1, '101011111110101': 1, '010011010110100': 1, '011111000011100': 1, '011011010001001': 1, '101110010011100': 1, '111110101111011': 1, '000100000000001': 1, '001110100010010': 1, '111110000000000': 1, '111001011111111': 1, '100110001101111': 1, '010010110001110': 1, '011101000111011': 1, '101000110101100': 1, '010101101110110': 1, '110101001010011': 1, '111001010000001': 1, '010110000001100': 1, '011011100001100': 1, '000110001010100': 1, '100000100000100': 1, '101111000110101': 1, '110000000100100': 1, '000010001100000': 1, '000100001111010': 1, '011010111110110': 1, '100011010011000': 1, '010101101000101': 1, '110111110100001': 1, '011010000000101': 1, '101101010101011': 1, '110111001010010': 1, '010110010001100': 1, '101010100101111': 1, '010100101100010': 1, '000010010011011': 1, '011000001001100': 1, '101011101100000': 1, '100100110110001': 1, '000101000011101': 1, '011101101010101': 1, '011010001000110': 1, '011010000011111': 1, '111100111010111': 1, '110010101111000': 1, '001010111011101': 1, '010110110110011': 1, '111111111010011': 1, '110001111101010': 1, '111011010001101': 1, '101010011110110': 1, '010111110011110': 1, '100100010011100': 1, '111010100111011': 1, '101000000000010': 1, '001101110001000': 1, '000000001100001': 1, '011110111010111': 1, '101011011111011': 1, '011000100101001': 1, '000101111110110': 1, '011011101001000': 1, '000000000000010': 1, '110010001001110': 1, '011001011010110': 1, '011001110010111': 1, '010100001101101': 1, '111011001100110': 1, '010110011111001': 1, '111000111001001': 1, '100100000000010': 1, '010000100011111': 1, '110111001110001': 1, '011011000001111': 1, '000110110110011': 1, '010111101111101': 1, '000000000010000': 1, '101110000101100': 1, '101100100010100': 1, '011111000010110': 1, '110111011000010': 1, '011010000100010': 1, '110101100000111': 1, '110010110110011': 1, '000110010110100': 1, '110101101100000': 1, '111110001000110': 1, '001010010011000': 1, '101010010110111': 1, '100110000011010': 1, '001010011001010': 2, '111111111110000': 1, '110001101011011': 1, '101000111100011': 1, '000100110111001': 1, '110100001100101': 1, '111010110110110': 1, '000101001011001': 1, '111001000110101': 1, '000000111100100': 1, '011101110001111': 1, '101010011010011': 1, '001111010111100': 1, '000000000000011': 1, '000010000001010': 1, '011101111101100': 1, '101110000111001': 1, '111101010010000': 1, '101000000010100': 1, '010110001011101': 1, '110010010000000': 1, '010100110001001': 1, '010110010001110': 1, '110011001110010': 1, '000011111110111': 1, '100010110100100': 1, '111110000000100': 1, '011110111110010': 1, '000101001001001': 1, '111001100010100': 1, '010101011110010': 1, '101010101110001': 1, '100001100001000': 1, '111100110000111': 1, '101100110111001': 1, '010100001011001': 1, '100111011011011': 1, '101000101011100': 1, '110000110110001': 1, '100010110011111': 1, '101101010111000': 1, '111010111000111': 1, '111001101000010': 1, '010010000100100': 1, '111100011101110': 1, '011100101111110': 1, '010000100101011': 1, '001001001101010': 1, '000001010000111': 1, '011101100011010': 1, '011101000000001': 1, '100010011100101': 1, '100101101001110': 1, '101111001100000': 1, '011111000011010': 1, '011101110011101': 1, '101000100001111': 1, '001100110110101': 1, '000010001111011': 1, '011001001100000': 1, '111011010101110': 1, '101011110111101': 1, '010011101011001': 1, '001111100011000': 1, '001100110100100': 1, '010111000111111': 1, '110010100110101': 1, '011000111100110': 1, '111011010100100': 1, '101001111011000': 1, '110101100100100': 1, '000111100010110': 1, '011001101101110': 1, '111010100101000': 1, '000111011110001': 1, '001010110101110': 1, '010111000111010': 1, '100001101111011': 1, '101010011110011': 1, '100011101110001': 1, '000111001111101': 1, '101111010100101': 1, '100101001111111': 1, '101011011001000': 1, '000111011011000': 1, '000001001100101': 1, '001000000100101': 1, '000000000001000': 1, '101000110001101': 1, '011000111011100': 1, '101011101011010': 1, '100101100011000': 1, '111110101110100': 1, '010111000101000': 1, '011100011001101': 1, '101111100011011': 1, '001101111000000': 1, '010110111111100': 1, '000000111101110': 1, '100110101111001': 1, '011101101101000': 1, '000000010100000': 1, '111001000001000': 1, '000000000100000': 1, '110011011100001': 1, '000100000001000': 1, '001100000000001': 1, '001111001111001': 1, '010011011000010': 1, '011111110001100': 1, '111011110000000': 1, '011010111001011': 1, '000001000000010': 1, '010000101110000': 1, '010000100010001': 1, '101100110010000': 1, '010111000010100': 1, '101111011000101': 1, '100000110010100': 1, '110000111011010': 1, '011100101010101': 1, '101101010011011': 1, '110111110000110': 1, '001010011011100': 1, '010011000010101': 1, '101110010111110': 1, '111000001110001': 1, '010011000011000': 1, '011011010011011': 1, '110111010011110': 1, '000011001111001': 1, '110101000001111': 1, '000110000000000': 1, '001000010011110': 1, '011101011100100': 1, '011111000000000': 1, '010001000000100': 1, '100010111011100': 1, '010000111000011': 1, '100110010001100': 2, '111000000100000': 1, '110010100100100': 1, '110101010000011': 1, '011000111010111': 1, '110000111000110': 1, '000000000100011': 1, '011011100100000': 1, '010011100101000': 1, '010100101010110': 1, '010010010010110': 1, '100100110001000': 2, '010011100010011': 1, '000101010011001': 1, '001101001111111': 1, '110001001000000': 1, '100000001101000': 1, '001111111100101': 1, '101011100010010': 1, '100110111111100': 1, '111100010011111': 1, '101110001010111': 1, '101100010001010': 1, '000100010101000': 1, '011100010110110': 1, '001100010101101': 1, '100001110110100': 1, '101110010100000': 1, '101110110010001': 1, '010101001101111': 1, '111111110110110': 1, '010101001110001': 1, '010100000100111': 1, '010101010111101': 1, '011001110101010': 1, '110101110101011': 1, '000000101111110': 1, '000011100110000': 1, '010010001111001': 1, '010111100100110': 1, '111111011010010': 1, '011111011010100': 1, '110011001111101': 1, '110101100100000': 1, '001101111010001': 1, '011100101011011': 1, '011011010111010': 1, '011010110011011': 1, '100011010111100': 1, '110010000111110': 1, '000110110000110': 1, '000000000101111': 1, '011010000101110': 1, '101111101001101': 1, '011000001111100': 1, '101111111000011': 1, '110110111000000': 1, '100110101001000': 1, '001011100100100': 1, '100011100010100': 1, '001101111000110': 1, '011100110001011': 1, '111100010100101': 1, '010000001101100': 1, '000110101111011': 1, '010110001110100': 1, '100010010101000': 1, '000000111001000': 1, '101100101100000': 1, '010010001101010': 1, '011000001000101': 1, '011111001111010': 1, '001100100010100': 1, '111011000110001': 1, '010110110011010': 1, '110010110110100': 1, '110011000101000': 1, '110010001101110': 1, '110011101111011': 1, '110111110001010': 1, '101111100110000': 1, '100010000011110': 1, '001000000001100': 1, '101101111011001': 1, '101110011011010': 1, '001000100011110': 1, '111011111110010': 1, '001010110100000': 1, '110110000010111': 1, '100000110111111': 1, '010101000000001': 1, '100111010011000': 1, '011111010000111': 1, '100110101101011': 1, '100100000001010': 1, '010100010101100': 1, '110000101111010': 1, '110101100010110': 1, '101110001111010': 1, '110010110101100': 1, '111011100011011': 1, '111100101001111': 1, '100000010000111': 1, '011111101110010': 1, '110101000000011': 1, '000111111101101': 1, '111101010110010': 1, '100011111010000': 1, '010100100010010': 1, '010111010010010': 1, '001100111101011': 1, '111110010000000': 1, '100100000101111': 1, '011001101110000': 1, '110010100011110': 1, '111010101000000': 1, '100110100111110': 1, '100110000011011': 1, '001010111111110': 1, '000101011000111': 1, '011110011101100': 1, '000100001011000': 1, '001101101001010': 1, '001000001110110': 1, '111001110000111': 1, '001001001110111': 1, '110010100001111': 1, '010110100000111': 1, '011100100100100': 1, '101101000001001': 1, '101101000010001': 1, '101010110001000': 1, '000101111000000': 1, '011111100111101': 1, '000110111011010': 1, '001111100100010': 1, '100010011001000': 1, '010010101001111': 1, '111001001110000': 1, '010000111011100': 1, '101000001100001': 1, '111101001101100': 1, '100100000000011': 1, '001010010001000': 1, '111011111111011': 1, '010000110101111': 1, '001110101001001': 1, '001110010000001': 1, '010110000110011': 1, '101000111101100': 1, '000111011100001': 1, '000001110101101': 1, '100110011110011': 1, '100001011011000': 1, '000001111010010': 1, '001111011001101': 1, '001011010000010': 1, '110111000100101': 1, '111111001111011': 1, '111101110010101': 1, '111111110101110': 1, '100110111001011': 1, '001101101101000': 1, '000100001111101': 1, '000110110010110': 1, '110001111000000': 1, '100110000101110': 1, '101000110111011': 1, '110110001000110': 1, '100111011111001': 1, '100110001001100': 1, '000110101110111': 1, '100110111100000': 1, '111100001110001': 1, '001001000100010': 1, '011110111110011': 1, '111011000111011': 1, '001111011101001': 1, '000011100110011': 1, '011011011101110': 1, '111111110010001': 1, '011101110000000': 1, '010011000000100': 1, '101011000001100': 1, '100001101110001': 1, '110001010000000': 1, '111010011110111': 1, '011111100001011': 1, '010001001100001': 1, '111001010111011': 1, '111000010101010': 1, '111101001100100': 1, '010000110101010': 1, '111111000000000': 1, '101011010111001': 1, '011000011101110': 1, '111000100000010': 1, '110011000100011': 1, '110010011011101': 1, '111010000101000': 1, '000101000000000': 2, '101110110000010': 1, '101101101000110': 1, '100010010011111': 1, '001111111101110': 1, '100001101011110': 1, '000100010011100': 1, '011100111101011': 1, '011001111000101': 1, '101110110011100': 1, '111110000111101': 1, '000010110001110': 1, '011111010111000': 1, '010100111111111': 1, '000010110001111': 1, '111101001011111': 1, '101111000010001': 1, '101010111110000': 1, '110100011001110': 1, '010110111101100': 1, '111110011100000': 1, '111001100100110': 1, '010000111100000': 1, '000101110010001': 1, '101111110101110': 1, '000101110111100': 1, '100100011111100': 1, '011101011001111': 1, '001111101011000': 1, '010001011001100': 1, '001101010011000': 1, '101110000000010': 1, '110101010111001': 1, '110001000111111': 1, '100001010111010': 1, '101110010000101': 1, '011111010011110': 1, '101000110111001': 1, '011111111010010': 1, '001001010111000': 1, '001011111010111': 1, '001111010100010': 1, '101001000000101': 1, '110001101110111': 1, '101110111101100': 1, '011110010001101': 1, '110110101010001': 1, '101111010000101': 1, '111111100000110': 1, '110110101101110': 1, '001001100100111': 1, '100000010100011': 1, '101011000001000': 1, '000010011000000': 1, '101001000000000': 1, '011001011001101': 1, '101001011011000': 1, '000001000010000': 1, '100110010100010': 1, '111101101001010': 1, '010011110110011': 1, '011111110011000': 1, '010101111110010': 1, '110000000111110': 1, '111011010110010': 1, '100000000001011': 1, '011001010010111': 1, '001111000101010': 1, '101011011100000': 1, '001011001111110': 1, '000000000000111': 1, '100010110000111': 1, '000111001100100': 1, '010101110001000': 1, '011001011100000': 1, '100001000110001': 1, '000011010100001': 1, '110100110000111': 1, '000101101110110': 1, '010101000111101': 1, '000100011101011': 1, '101101010101000': 1, '010011101111101': 1, '100100010101000': 1, '101100001000110': 1, '111010101100100': 1, '101010001111010': 1, '100011010001111': 1, '000010100101001': 1, '001101010001000': 1, '111001010010100': 1, '101110001101100': 1, '111101100110101': 1, '110110001001001': 1, '001111101101001': 1, '111000000000000': 1, '100111010110000': 1, '000111101111100': 1, '110101110110001': 1, '011100110001110': 1, '000011000001000': 1, '010010101011100': 1, '001001001101100': 1, '101000000001100': 1, '000110010000100': 1, '110110110010110': 1, '110011001010111': 1, '010001000001110': 1, '111110001011111': 1, '011111011101001': 1, '101011011111111': 1, '000000100111010': 1, '011111101000000': 1, '111100100011100': 1, '100011001101000': 1, '011010110001011': 1, '111100111111100': 1, '100001000010101': 1, '010001001000010': 1, '010001101011100': 1, '110110100110111': 1, '101111010000011': 1, '000010010101100': 1, '110101011100001': 1, '001110111110100': 1, '110111010101101': 1, '001111100011111': 1, '101110100111110': 2, '011011011010100': 1, '111010101101100': 1, '110000011010110': 1, '000100000100101': 1, '100111101111010': 1, '000001111011001': 1, '111010110001001': 1, '110110110001101': 1, '101011101111011': 1, '001110010000111': 1, '010001011000111': 1, '000000111000100': 1, '011110111111011': 1, '010010000100000': 1, '110010001100001': 1, '011111001100010': 1, '100100011110100': 1, '100000110000010': 1, '110011000100010': 1, '100110110100001': 1, '000011001000001': 1, '001100101000100': 1, '110010111101011': 1, '010010001000000': 1, '101010111010111': 1, '000111101000100': 1, '010100010111101': 1, '001000011110010': 1, '110011000000110': 1, '111100101010010': 1, '000111000111001': 1, '011011100001010': 1, '111011101101100': 1, '011011100001001': 1, '111100000001101': 2, '001110101100011': 1, '000011001110111': 1, '000011101110010': 1, '011011111111011': 1, '100111111111011': 1, '011011110011100': 1, '110111111011000': 1, '101000100010110': 1, '110001000000000': 1, '101111011110001': 1, '100100000011110': 1, '001000110101110': 1, '000111111110100': 1, '001100101111110': 1, '110001010001010': 1, '100011111011101': 1, '011101110000010': 1, '001110110111110': 1, '011110011000000': 2, '111110110111111': 1, '111000111111111': 1, '011010110111001': 1, '111110001101000': 1, '111000100001010': 1, '100101111001111': 1, '000101111111100': 1, '111110101000101': 1, '001000100111001': 1, '001011000110011': 1, '010101100101000': 1, '011010011010101': 1, '110101000010000': 1, '110001010000101': 1, '010000000010010': 2, '101001110010011': 2, '001010110100001': 1, '101101001010011': 1, '111101101111001': 1, '001101111001000': 1, '001101000110010': 1, '010111111110101': 1, '111111001111101': 1, '010101000001101': 1, '101111110000000': 1, '000000100011101': 1, '101010000001100': 1, '001000111010101': 1, '001110111101010': 1, '011000000010000': 1, '000010001000101': 1, '001001110011010': 2, '000000010011110': 1, '001001101101111': 1, '010000000000000': 2, '110100111010001': 1, '000011100001000': 1, '000110001111010': 1, '000010111000101': 1, '010011010111000': 1, '001011101110110': 1, '000000011111000': 1, '001101111110100': 1, '000000000000100': 3, '000011010110000': 1, '100110100111010': 1, '100100100100101': 1, '010100101100000': 1, '000111001001000': 1, '011001011010000': 1, '101001110011111': 1, '110001011101011': 1, '101111000100100': 1, '010101010000000': 2, '000101000111101': 1, '101110101111001': 1, '011110010100100': 1, '001111000101100': 1, '110010111100000': 1, '100100011001001': 1, '100110110100101': 1, '000000010000000': 2, '011110110000011': 1, '101011111111000': 1, '101001101001010': 1, '101011100000011': 1, '000000110010101': 1, '001000001101001': 1, '101110001011111': 1, '010000110001011': 1, '011110011110101': 1, '001111111001110': 1, '101101010000000': 1, '110111000000001': 1, '001011100110111': 1, '000000000010110': 1, '111000001101000': 1, '001100110000000': 1, '001010111100010': 1, '110100000111001': 1, '000100100000001': 1, '001111011000100': 1, '011010111110000': 1, '101100101011010': 1, '100100111100000': 1, '011010100011000': 1, '000100100111101': 1, '111001011010110': 1, '110101101011011': 1, '010011010100000': 1, '010101001000011': 1, '110011101001111': 1, '100010011011111': 1, '001011001110011': 1, '100000110111000': 1, '001010111000000': 1, '111010011111100': 1, '000101000010110': 1, '011001111000010': 1, '011000001100101': 1, '100110111010110': 1, '100000101101010': 1, '110000001000101': 1, '100111010111000': 1, '011110001001101': 1, '101111010110110': 1, '000100110110000': 1, '110101101111110': 1, '011011110111101': 1, '011100010100001': 1, '101111000101101': 1, '011101110010101': 1, '101110100001110': 1, '110011101101000': 1, '000000101010100': 1, '001101101011100': 1, '101100011111111': 1, '111000010010010': 1, '101100010011000': 1, '110011001101001': 1, '110011100010110': 1, '101011010010011': 1, '001000110010111': 1, '110000001111101': 1, '101010001110100': 1, '111110000001000': 1, '100101110011111': 1, '110011001100000': 1, '011100011001110': 1, '000000000000000': 16, '011001111100011': 1, '100001101000011': 1, '010100111100111': 1, '101011011101110': 1, '101100100011010': 1, '111101100100100': 1, '110100110000000': 1, '000000010011011': 1, '000100000101101': 1, '001010010111000': 1, '110101011101101': 1, '011101110100000': 1, '111101110011010': 1, '000001010101000': 1, '110110011001111': 1, '001110111111100': 1, '001111001000011': 1, '101001000011110': 1, '111110001111111': 1, '111001101001110': 1, '111111110100001': 1, '010110110111000': 1, '101111001101111': 1, '111001000011110': 1, '010100111111100': 1, '110101111100111': 1, '011100101100101': 1, '011101001000011': 1, '100101111010010': 1, '110011001101101': 1, '111111101001100': 1, '000000001001011': 1, '001111011101000': 1, '010011111111011': 1, '101010110111101': 1, '011101110001001': 1, '000100110101010': 1, '111110101110001': 1, '010001001110101': 1, '000101001111101': 1, '111110100000110': 1, '001111011100101': 1, '110110000001010': 1, '001100111101000': 1, '110111010101000': 1, '001011010110010': 1, '111000100100000': 1, '001111011010011': 1, '001001011100110': 1, '010111010111100': 1, '100101111111011': 1, '110011110000001': 2, '000101101001100': 1, '000100111011101': 1, '010000110100001': 1, '101111010001111': 1, '111000100000000': 1, '010001100010100': 1, '110111100111010': 1, '011000000010100': 1, '110010000100011': 1, '100001011001110': 1, '100110111010101': 1, '011100011001100': 1, '000010110101110': 1, '110000110011000': 1, '001111000010000': 1, '000101001100111': 1, '110010000010111': 1, '011101110101101': 1, '001001110111010': 1, '110010001111100': 1, '100010110100110': 1, '101111101100100': 1, '010010100101000': 1, '111110100100111': 1, '111000001001011': 1, '101010010001100': 1, '110010000011101': 1, '110000011011101': 1, '001010111011100': 1, '001101110010001': 1, '110000110110110': 1, '100100010110010': 1, '101110001010110': 1, '000111111000001': 1, '001011111100101': 1, '110011110001001': 2, '010001110001011': 1, '100111010010010': 1, '011101100000010': 1, '110101000111010': 1, '000100110000000': 1, '010100010011111': 1, '101011011011100': 1, '011001011011010': 1, '001000001011010': 1, '010101111100100': 1, '100001100100010': 1, '001001011111110': 1, '001111101000000': 1, '001011111111011': 1, '010100001110101': 1, '100010110100010': 1, '111000010000100': 1, '110011100010001': 1, '010010001011011': 1, '001000001001101': 1, '000010011001111': 1, '100001001000000': 1, '110110001101110': 1, '010100010000000': 1, '110011000101111': 1, '001001000000011': 1, '000101001010111': 1, '011000011110000': 1, '001000000111000': 1, '000011011111010': 1, '001000110001110': 1, '001101001101010': 1, '100010110111101': 1, '101100010000001': 1, '011111001000000': 1, '101001011000000': 1, '110001011000111': 1, '000001011101010': 1, '001101100100101': 1, '111000001011000': 1, '000111011110010': 1, '100010001000111': 1, '001100000100101': 1, '110000000000000': 1, '001111010100000': 1, '010111000001010': 1, '011011010011101': 1, '101011000111000': 1, '110011101011000': 1, '000010011011000': 1, '010110100110000': 1, '111000110010000': 1, '100110011010000': 1, '000111000110010': 1, '011010110010000': 1, '001011000101001': 1, '100010111011000': 1, '000000111101100': 1, '110011101010000': 1, '011101011101010': 1, '011011010001000': 1, '101011111111010': 1, '001101100101111': 2, '010001011001011': 1, '101111000000000': 1, '110101110110100': 1, '010000101000010': 1, '001011100110000': 1, '111110101110101': 1, '100010011000111': 1, '101110011101011': 1, '111111011100000': 1, '111111001101001': 1, '011000100010100': 1, '001110001010001': 1, '010111111010000': 1, '111001111000110': 1, '111000101110111': 1, '001100101110101': 1, '011011000000011': 1, '111001100001111': 1, '000110110100010': 1, '001101010010011': 1, '011001110111000': 1, '010101111001100': 1, '011011011010010': 1, '101111001100100': 1, '100111000001010': 1, '111011110111111': 1, '111110011100010': 1, '010111000101100': 1, '000010110001000': 1, '010111001011010': 2, '011110000001001': 1, '101111010101010': 1, '110111101000000': 1, '100101000001111': 1, '100111110100010': 1, '111101111010010': 1, '011001010000000': 1, '001011001011011': 1, '011111101000001': 1, '100010101101111': 1, '111111110000000': 1, '000111000001001': 1, '111101100001000': 1, '010101011010111': 1, '111011010010111': 1, '001001011101110': 1, '011010110001001': 2, '001001000011000': 1, '001101111001110': 1, '001101100100110': 1, '000011001001000': 1, '001001000110011': 1, '011111011111111': 1, '111110100001110': 1, '110110110011101': 1, '110001100000001': 1, '101101000111001': 1, '110011110000100': 1, '001100110110110': 1, '100100110011000': 1, '111011101011000': 1, '111100011101101': 1, '010011001001000': 1, '001110101110111': 1, '110011000000000': 1, '101010110110011': 1, '110101000111000': 1, '101010111001000': 1}

When visualizing, this is the result:

from qiskit.visualization import plot_histogram
plot_histogram(result)

image

This can be addressed via number_to_keep, maybe just with a default around 30?

plot_histogram(result, number_to_keep=30)

image
@1ucian0 1ucian0 added the type: enhancement It's working, but needs polishing label Sep 2, 2024
@Shivansh20128
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Hi @1ucian0
This is something I would like to work on. But I have one question first. The enhancement you are talking about here involves putting a certain number of results with the lowest counts in the rest bar. This can be done manually by specifying number_to_keep as you have shown in the example above. Do you want the plot_histogram function to detect this automatically (when results are very sparse) and proceed with showing a few results and putting the rest in the rest bar (without having to specify the number_to_keep parameter)?

If you want that, I think it can be done by adding some conditions and statements to the plot_histogram function. I want to work on this if you think it will work.
Thank You

@Shivansh20128
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I think we could add a parameter for sparsity in the function, in which the user could mention sparse = true to denote that the data is
sparse.

plot_histogram(data, sparse=true)

This would tell the plot_histogram function that data is sparse, and can then internally analyze what the value of number_to_keep should be.

OR

We could create a sparse function inside the plot_histogram function. The sparse function could trace the data and detect sparsity by analyzing how many values belong below some threshold and accordingly setting the value of number_to_keep parameter.

@Shivansh20128
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@1ucian0 Can you please give some feedback on this and assign this to me? If there is some IBM policy that only in-house developers are allowed to contribute code to Qiskit, you can let me know. Because it has happened to me before, that I wanted to resolve an issue (which was a feature request), and I commented on it, but no one assigned to it me for many days and then it was suddenly assigned to an in-house developer, only hours after he had asked.
Thank You

@1ucian0
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1ucian0 commented Oct 7, 2024

Hi Shivansh,

I wouldn't add a boolean flag that makes an internal analysis. I would use that parameter to parametrized that analysis. For example, ignore_under=3 for example that would not put count that have less than 3 counts. That's a possible idea. Not sure if the best one :) but my general feedback is not avoid bool flags.

There is no policy about in-house assignments. However, you have better chances with good-first-issues: https://qisk.it/good-first-issues

@Shivansh20128 Shivansh20128 linked a pull request Oct 8, 2024 that will close this issue
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fixing plot_histogram when data is sparse Shivansh20128/qiskit
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@1ucian0 @Shivansh20128