slib_lang_exists_tmp=yes

slib_title=Histogram
slib_parms=3\
,[data]\
,[position] list of numbers or [first end, width] which determine the intervals or the x-coordinates of the points\
,option : noxtics, xtics [optional liste], noytics, \
tt>ytics number of graduations,type_histo, color [red by default],raw,\
option word amongst url, html, raw

slib_out=Plot of the histogram (+ size of the image when the option word is \
url or html).
slib_synonyme=plot frequency, frequency plot
slib_comment=The first item of the output is: by default, the flydraw code (option word raw); \
the address of the generated image if the option word is url ; \
the html code for inserting image if the option word is the option html.\

- If type_histo is not given, the slib produces an histogram of\
the data values in vector [data] using the intervals characterized by\
[position] : the values of [data] are the areas of the bars of the\
histogram. If [position] is a list of numbers which determine the \
endpoints of  intervals, its length is  1 + length of [data] \

- If  type_histo is baton (resp. stem), \
the slib produces a  plot of data points in [data] connected \
the horizontal axis by vertical bars (resp. vertical lines) at the \
x-coordinates specified in [position] ; [data] and \
[position] must have the same length.\

- If type_histo is step or stair, the slib\
produces a 'stairstep' graph of the data points in [data]. As [position]\
specifies the endpoints of the horizontal lines, its length is  1 +\
length of [data].\
With stair, the horizontal lines are not linked together by \
vertical lines.
\

 If xtics is followed by a number n, there are n graduations. \
If it is followed by a vector, the graduations are on the intervals \
and the text is those given in the vector.\
