How to create scatter plot

[Melissa]

I am using Excel 2000.
I would like to create a scatter plot of Types of Calls received throughout
the day. The end result is for me to see at what time of day are the various
types of calls concentrated in. Thus, the X-axis would be the 24-hour range,
starting from 00:00hr on left-end to 00:00hr on right-end.
I don't know what should be on Y-axis. but I do want my scatter dots to be
differentiated by Call Types.

What is the best way for me to structure my data table, i.e. what columns do
I need?
I suppose at the minimum, I need these columns:
1. Call Type (e.g. Defect; Query)
2. Time of Call
3. Date of Call

I do not require the date of the call to be displayed in the scatter plot
but I do want to sum up all the calls received over the week for each hour of
the day.

Thanks.

 

[Pete_UK]

I would have thought that a stacked bar chart would be more
appropriate than an XY scatter. On the Y axis you would have the count
(number) and the X axis would be the time slots. So in text format it
would look like this:

d x
xdxd dxx
xxxxx xxdxxdd
xxxxxxxxxxxxxxxxxx

where the x might be for query and d for defect (not sure how this
will look when I post it).

Hope this helps.

Pete

 

[Melissa]

Yeah, I was thinking about that after posting the comment. I think it would
be better if I have:
X-axis: Call Type
Y-axis: Time of day.
So it would look something like this:

d x
d x
d
x

x
-------------->x-axis
Def Que
Question is: how do I structure my data table to get this?

 

[Pete_UK]

Well, if your raw data is organised as:

Column A - Call Type (e.g. D or Q)
Column B - Time of Call
Column C - Date of Call

then you would need another table elsewhere in the sheet to summarise
this data for each week - you would need 3 columns, one for time (in 1
hour intervals), one for the Ds and another for the Qs, and then you
could have a SUMPRODUCT formula to count the number of calls within
each interval for each type.

From this you can produce your graph.

Hope this helps.

Pete

 

[Melissa]

Thanks but can you explain how I then create the graph? Which ranges should
be X-axis and which should be Y-axis?

 

[Pete_UK]

Highlight the data for the times, D and Q calls and click on the Chart
Wizard icon. In this you can click a Chart type (eg Bar (horizontal)
or Column (Vertical)) then you can click on the little picture for the
sub-type (eg stacked rather than side-by-side). At this point you can
click the Press and Hold to View Sample button to see what your graph
will look like. If you are happy with this then click the Next button
and the Wizard will take you through different settings on several
panels (eg headings for the graph, labels for the axes etc).

Note that Excel will automatically take the first column (times) as
the X axis (although you could change this).

Hope this helps.

Pete

 

[Melissa]

Figured it out myself and posting this in case it's useful to other folks:
This is my data table:
No. Date of Call Time of Call Type of Call
1 1 Jan 2am 1
2 1 Jan 3am 2
3 2 Jan 1am 1
4 2 Jan 4am 2

Where Type of Call 1 = Defect
2 = Query
I've had to use numbers in column "Type of Call" in order to get a scatter
diagram which showed the calls spread over the 24-hours for each Type of
Call.
So, X Values = C1:C4
Y Values = D14
and the resulting graph looks something like this

2 | * * *
1 | * * * * * *
0 |