[rkward-devel] New plugin and functions

[I. Soumpasis]

Hi all!

I uploaded a new plugin, the crosstabs plugin. I wait for recommendations,
corrections etc.

I also wrote three functions:
descriptives: Gives the descriptive statistics for a numeric variable in a
way Excel and Gnumeric do. The result come as matrix (easier to format in
the output window). It also has an option of creating a histgram with a
curve testing normality.
descriptives2: Like the previous but for a set of variables testing if they
are numeric or no. The results come in a list.
lmtry: It tries to fit a line in a scatterplot, and gives the function. It
has an option of giving the full results of lm. It is analogous to the
Minitab's Fitted line plot.

I want to do things on time series and quality controls but the time is very
limited. My rationale is to create simple functions and plugins to be used
by business, and to be as close as it can to what they allready know in
order not to be discouraged.

I attach a pdf with the results of the above functions (I created with
texmacs), in order to have a look at what they can do.

Do you believe that these functions have a place in rkward? If yes should
they just be embedded in the php files or should they be as functions in the
package (or in an other package) and then called from the php file as
functions? I was also thinking of creating a package but I am not sure for
now.

Regards,
Ilias
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