I have two doubts
x and z axis tics are fine..
how to overcome this y axis tics overlap
You can use set tics front to move the tics to the front. But that also puts the grid (if you have one) to the front.
set tics front
See help grid and help dgrid3d! set grid draws a grid, set dgrid3d is for mapping scattered data to a regular grid.
Thanks for reply,
its not working . only y axis tics values are overlaaping
Well, in that case you should provide some information about your plot. Please provide a minimal example script which shows the problem, and, ideally also an image. Its quite hard to guess your settings...
Please find the attachment for script file and output file
Please observe Y-axis values are overlapped
Your separation between tics on the y-axis differs by 5(!) orders of magnitude. Either the fine subdivisions below 86400 are not important, or you should consider using a logscale for the y-axis (set logscale y).
set logscale y