> Am 04.01.2018 um 11:13 schrieb Schaff, Frederik:

> > Happy New Year!

>

> And to you! (and everybody)

>

> > guess it is a problem with large integer (part) of the numbers? Is

> > this only the visible behaviour or can it really distort the data and

> > computations? In this case it wouldn’t matter, but in other cases it

> > might…

>

> There are two separate issues here, the internal number representation and

> the printed format.

>

> AFAIK in gretl basically everything is stored as a double precision float (should

> be 64 bit == 8 byte wide). It is a standard computer science thing that floating

> point numbers cannot exactly represent all integers, and in principle you also

> have the possibility of overflow. In this (very old and universal) sense yes in

> principle it could affect the results. This is not usually a problem in practice,

> however.

>

> The limited number of digits/precision which is displayed is different from

> that. There are some 'set' options for that for example, quoted from the

> command ref:

>

> <doc>

> - display_digits: an integer from 3 to 6, specifying the number of significant

> digits to use when displaying regression coefficients and standard errors (the

> default being 6). This setting can also be used to limit the number of digits

> shown by the summary command; in this case the default (and also the

> maximum) is 5, or 4 when the --simple option is given.

>

> - mwrite_g: on or off (the default). When writing a matrix to file as text, gretl

> by default uses scientific notation with 18-digit precision, hence ensuring that

> the stored values are a faithful representation of the numbers in memory.

> When writing primary data with no more than 6 digits of precision it may be

> preferable to use %g format for a more compact and human-readable file;

> you can make this switch via set mwrite_g on.

> </doc>

>

> In the "show values" (zeige Werte) window there is also a button number

> format (Zahlenformat) where a different display can be chosen.

>

> hth,

> sven

That trick did it, thanks!. For the record, selecting “reformat” (  ) and then show (e.g.) the 15  significant figures worked fine

Frederik