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- %OP%VS4.13 (28-Apr-92), Gerald L Fitton, R4000 5966 9904 9938
- %OP%DP0
- %OP%IRY
- %OP%PL0
- %OP%HM0
- %OP%FM0
- %OP%BM0
- %OP%LM4
- %OP%PT1
- %OP%PDPipeLine
- %OP%WC1026,2262,48,1748,0,0,0,0
- %CO:A,72,72%
- %C%Charts from the Beginning - Part 3
- %C%by Gerald L Fitton
- Keywords:
- Multiple Non-consecutive Charts Fitton
-
- Warning!
-
- Apart from this [ReadMe] file, do not attempt to load and run any of
- the other files in this directory from the master disc!
-
- Why is this? Colton Software's hot linked graphics package operates by
- saving copies of chart files back to disc. The original file I have
- included in this directory will be over written. For that reason I
- strongly suggest that you work with back up copies of the files in this
- directory rather than the originals.
-
- You can read more about using backup files rather than originals
- (including the creation and use of a RAM disc to hold working copies of
- the files) in the directory Charts01 (the first of the 'Charts from the
- Beginning' tutorials) on another disc.
-
- Outline Fonts
-
- To use the PipeDream Charts facility you will also need outline fonts.
- The Homerton and Trinity fonts must be loaded (if in doubt then click
- on the !Fonts application) before you load PipeDream to the icon bar.
- PipeDream only recognises those fonts which have been loaded before it
- is. PipeDream can not add fonts to its 'private' font list after it
- (ie PipeDream) has been loaded to the icon bar. If you don't know
- whether you had the fonts loaded when you loaded PipeDream then Quit
- PipeDream, make sure the fonts are loaded and then load PipeDream back
- to the icon bar.
-
- Again, you can read more about my approach to this need for outline
- fonts in Charts01. If you send us a Charts application for inclusion
- in PipeLine then please use only the Homerton and Trinity fonts.
-
- Introduction
-
- In this, the third tutorial of the Charts series I am going to explain
- how you can draw multiple bar charts using data which is not in
- consecutive rows. Although I shall concentrate on bar charts, the
- principles I explain can be used to draw multiple line graphs using
- data which is not in consecutive rows.
-
- Before I start, let me acknowledge that the inspiration for this
- article was a problem sent to me by Peter Paddisson. It is his [Stats]
- file which I am using as the data for this tutorial. I believe that
- the file is the monthly rainfall measured in inches and the original
- data he sent me runs from 1888 to about 1970. I'm sorry but I forget
- which part of the UK it was for!
-
- If any of you do have problems with Charts (or with anything else) then
- it is most likely that others are having similar problems and that the
- solution will almost certainly be of interest to other PipeLine
- subscribers. Let me make my usual plea for you to send me a worked
- example of your problem on a disc so that I can work through the
- solution using your data files.
-
- The Statistics
-
- I have included a reduced version of Peter's [Stats] file because the
- original is 19 Kb whereas the [Stats] file I'm using is only 2 Kb.
-
- Double click on [Stats] and you will see that the month names are in
- row 2, the year names in column A and the data in the block B3M12.
- Peter has calculated an average in column N. We won't be using it in
- this tutorial but I would like to see a line graph of the 12 month
- moving average at some time - but not today!
-
- The Easiest Chart
-
- Mark the block A2M3 and then execute <Ctrl CHN> (CHart New). You will
- find yourself with a chart which looks much like [Chart1888], the only
- difference being that in the chart you have just produced all the bars
- are red whereas, in [Chart1888], the colours of the bars cycle through
- a set of nine colours. You can 'convert' your chart to one of many
- colours by executing the following sequence. Click the mouse menu
- (middle) button on the chart (not on the data) and a menu called Chart
- will pop-up. Run the pointer through Gallery and click on Bar. In the
- version of PipeDream which I have (V 4.13) there are seven types of bar
- chart presented, a top row of three and a bottom row of four. Click on
- the third from the left (the right most) of the bar chart types in the
- top row and your bar chart will turn into one having nine differently
- coloured bars.
-
- Separated Rows
-
- Now for a harder problem. How to draw a bar chart for the 1889 data
- without including one for the 1888 data.
-
- Mark the block [Stats]B2M2 which contains Jan to Dec. Be careful; make
- sure that you do not include neither A2 nor N2. I find the easiest way
- of marking the block B2M2 to click select in B2 and click adjust (the
- right mouse button) in M2.
-
- Execute <Ctrl CHN> to create a new chart. You will see a pop-up
- message box which reminds you that there is no numeric data in the
- marked block. Although there is no numeric data you must choose to
- continue by clicking on the Yes box.
-
- Place the pointer in the new chart and click the mouse menu button.
- Select Gallery - Bar and then select the third type of bar chart from
- the first row of bar charts. That is the one which gives the multi
- colour bars. Finally, click on the OK box.
-
- Mark the block [Stats]A5M5 (note that the year is included in the slot
- A5) and then execute <Ctrl CHA> (CHart Add) to add the data to the
- (blank) chart. You will observe that the legend (contained as text in
- slot A5) shows in the chart as year 1890.
-
- Two Sets of Data on One Chart
-
- You can add a second set of data to a bar chart but, personally, I
- don't really like the result. I prefer the multiple line graph of
- [1888_1889]. The method of crating a line graph with multiple lines,
- adding as many as you like, by a second and third line is fairly
- straightforward.
-
- Mark the block B2M2 and execute <Ctrl CHN>. Click on Yes to proceed
- even though there is no numeric data in the marked block. When the
- box containing the Chart appears click menu - Bar - Line. Turn off the
- 3D button, ensure that the first type of line chart has been selected
- (the one at the top left) and click on OK.
-
- Now you can mark any row such as the 1889 results in A4M4 and execute
- <Ctrl CHA> to draw the line graph for that year's data.
-
- If you mark a block such as A6M9 to include three year's data then you
- will draw three lines at once (all in different colours)!
-
- In Conclusion
-
- If you do have any problems with creating the Chart you want, then,
- like Peter, please send me a disc file of typical data and an
- indication of the many things you've tried that didn't work. It does
- save me considerable time and allows me to send you back a reply which
- uses your data and a chart in the format you want.
-