This is the old binary-decimal precision
issue again. Most multiples of 0.1 cannot
be held exactly as binary numbers.
The most direct solution is possibly to run a number
-- let's say in the local macro `foo' --
through
local foo : di %2.1f `foo'
to ensure that the text is what you want.
I'd leave the original variables untouched.
Nick
[email protected]
Scott Merryman
> Friedrich,
>
> The -round()- function inside the text() option will almost
> give you what
> you want. For some reason, -round(le_male[`i'],.1)- for the
> year 1922 gives
> "54.40000000000001" rather than 54.4, hence the use of -tostring- for
> le_male.
>
>
> #delimit ;
> sysuse uslifeexp, clear;
> keep if year>1918 & year<1925;
>
> tostring le_m , gen(lem2) format(%3.1f) force;
>
> forv i = 1/6 { ;
> local tbox "`tbox' text(`=le[`i']' `=year[`i']+0.05'
> "`=round(le[`i'],.1)'", box bc(white) place(e) size(small))";
>
> *local mbox "`mbox' text(`=le_male[`i']-0.2' `=year[`i']'
> "`=round(le_male[`i'],.1)'", box bc(white) place(s) size(small))";
>
> local mbox "`mbox' text(`=le_male[`i']-0.2' `=year[`i']'
> "`=lem2[`i']'", box bc(white) place(s) size(small))";
>
> local fbox "`fbox' text(`=le_female[`i']+0.2' `=year[`i']'
> "`=round(le_female[`i'],.1)'", box bc(white) place(n)
> size(small))";
> };
>
> scatter le year, connect(l) `tbox' ||
> scatter le_male year, connect(l) `mbox' ||
> scatter le_female year, connect(l) `fbox'
> xscale(r(1918.8 1924.2)) yscale(r(53 63));
Friedrich Huebler
> > Thank you for your response to my query. I like your suggestion to
> > use the -text(, box)- option. Below is a good example for
> the kind of
> > graph that I am actually trying to create. I have three timelines
> > (total, male, and female) and the points are sometimes so close to
> > each other that I cannot draw the labels on top of the marker. This
> > is solved by adding the -place()- option.
> >
> > I also found that at the default position of the textbox the markers
> > are partially covered. My solution is to add or subtract a certain
> > amount from the coordinates of the marker. This amount
> depends on the
> > scale of the x- and y-axes.
> >
> > I am left with one problem for which I have no solution. I
> would like
> > the labels to appear in the format %4.1f but the number 61.8, for
> > example, appears as 61.79999923706055 in the textbox. I
> tried setting
> > -format le le_male le_female %4.1f- but this has no effect on the
> > graph.
> >
> > #delimit ;
> > sysuse uslifeexp, clear;
> > keep if year>1918 & year<1925;
> > forv i = 1/6 {;
> > local tbox "`tbox' text(`=le[`i']' `=year[`i']+0.05'
> > "`=le[`i']'", box bc(white) place(e) size(small))";
> > local mbox "`mbox' text(`=le_male[`i']-0.2' `=year[`i']'
> > "`=le_male[`i']'", box bc(white) place(s) size(small))";
> > local fbox "`fbox' text(`=le_female[`i']+0.2' `=year[`i']'
> > "`=le_female[`i']'", box bc(white) place(n) size(small))";
> > };
> > scatter le year, connect(l) `tbox' ||
> > scatter le_male year, connect(l) `mbox' ||
> > scatter le_female year, connect(l) `fbox'
> > xscale(r(1918.8 1924.2)) yscale(r(53 63));
> >
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