You could filter the data. You could use a pivot table to extract days of
the week.

You could use a formula that picks every seventh item from a column,
something like this:

Range of data: A2:A200
First Monday: A3
Range of output (for plotting): D2:D30
First formula:
=offset(A$3,(row()-row(D$2))*7,0)

- Jon
-------
Jon Peltier, Microsoft Excel MVP
Peltier Technical Services, Inc.
http://PeltierTech.com/WordPress/
_______


"Maurolava" wrote in message
...
Thank you Jon,

How can I do that in an efficient way? What formula can I use that will
look
up for all the number for Monday, plotted in a continuous column?

Once again, thank you in advance,

Maurolava

"Jon Peltier" wrote:

In general the limits are generous: 32,000 points per series, a total of
256,000 points per chart.

Your limit may be due to adding one point at a time using the Ctrl key to
select individual cells. This produces a large series formula, because
each
cell has its address (including worksheet name) added to the formula.

The solution is to place your data in contiguous ranges, so you only need
to
select a rectangle that includes all of the data.

- Jon
-------
Jon Peltier, Microsoft Excel MVP
Peltier Technical Services, Inc.
http://PeltierTech.com/WordPress/
_______


"Maurolava" wrote in message
...
I have a scatter chart with 6 different series, one for each day of the
week
( minus sunday) each one list the amount of customers help in my shop
on
each
individual day. However after the 11 day, it seems I can not add
anymore
dates.

Why can I add more data?

Thank you in advance,

Maurolava