Q:

adding space between x axis and xtics in gnuplot histogram

Currently I created graphs with small size. The spacing really important at this case. I want to add more vertical space between my xticlabels and x axis. 
I have tried to set the x bar with 
set xtics offset 0,graph 0.05

my gnuplot output:

The data and gnuplot script still same with my previous question here.

A:

You can do the following:
First add a little bit of bmargin by 
set bmargin 3

Since you need to add vertical space between your xticlabels and x-axis, you need to adjust the Y-offset, which can be done by the following
set xtics offset 0,-1,0

You can play around with the values to suite your need.

