force chart y-axis to start at 0

[tim bradshaw]

Hi there

I'm plotting y values on a chart which all happen to be zeros, and Stata insists on scaling the y-axis from -1 to 1 despite my use of the "range" option.

clear
input int year float rate
1999  0
2000  0
2001  0
2002  0
2003  0
2004  0
2005  0
end
line rate year, yscale(range(0 .)) ylabel(#5)

Any advice on how else to force the y-axis to start at zero instead of -1 here?

With many thanks

[Nick Cox]

I think the code leaps into a special mode if the y variable is constant. I don't know how much of an improvement is gained by

line rate year, yscale(range(0 .)) ylabel(0)

[Andrew Musau]

Specify a specific upper limit + restrict the plot region margin to 0.

line rate year, yscale(range(0, .1 )) ylabel(#5) plotregion(margin(0))