Histogram in gnuplot - bins not separated one from another

Question

Sorry for my English,

I would like to make a histogram in gnuplot, where bins are not separated one from another by vertical lines, something like it is shown in the following figure:

I usually use "plot [...] with boxes" command to make a histogram, but it leads to a histogram with such vertical lines, which make the histogram unclear for bigger number of bins in the plot.

My data consists of two values for every value of x.

Answer 1

My comment again as answer, according to the StackOverflow "rule": no answers in comments...

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