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#1
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Time-date chart plotting
How can I create a time-date graph such that the values are plotted at the
correct time positions within the date range rather than all on the date vertical axis? N N N N N N N N THIS N N N N Jan 1 Jan 2 Rather than N N N N N N NOT THIS N N N N N N Jan 1 Jan 2 |
#2
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Time-date chart plotting
On Fri, 7 Mar 2008, in microsoft.public.excel.charting,
Midjack said: How can I create a time-date graph such that the values are plotted at the correct time positions within the date range rather than all on the date vertical axis? Choose Chart type XY (Scatter) instead of Line. Line has only the options of Category (which won't distribute the values properly) and Time-scale (which, for some bizarre reason, Microsoft limits to whole days only - no times available). Time-scale can sometimes be useful as a sort of Interval scale for Line and Area chart types, but because it only does integers, not fractions, it's no good to you here. Only a proper interval/interval chart type will do. Also, make sure the X values are proper "date plus time" format all in one cell. A date in one cell and a time in another won't work. -- Del Cotter NB Personal replies to this post will send email to , which goes to a spam folder-- please send your email to del3 instead. |
#3
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Time-date chart plotting
Many thanks Del. That seems to work fine after a little tinkering with both
of the axes. "Del Cotter" wrote: On Fri, 7 Mar 2008, in microsoft.public.excel.charting, Midjack said: How can I create a time-date graph such that the values are plotted at the correct time positions within the date range rather than all on the date vertical axis? Choose Chart type XY (Scatter) instead of Line. Line has only the options of Category (which won't distribute the values properly) and Time-scale (which, for some bizarre reason, Microsoft limits to whole days only - no times available). Time-scale can sometimes be useful as a sort of Interval scale for Line and Area chart types, but because it only does integers, not fractions, it's no good to you here. Only a proper interval/interval chart type will do. Also, make sure the X values are proper "date plus time" format all in one cell. A date in one cell and a time in another won't work. -- Del Cotter NB Personal replies to this post will send email to , which goes to a spam folder-- please send your email to del3 instead. |
#4
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Time-date chart plotting
"Del Cotter" wrote in message ... On Fri, 7 Mar 2008, in microsoft.public.excel.charting, Midjack said: How can I create a time-date graph such that the values are plotted at the correct time positions within the date range rather than all on the date vertical axis? Choose Chart type XY (Scatter) instead of Line. Line has only the options of Category (which won't distribute the values properly) and Time-scale (which, for some bizarre reason, Microsoft limits to whole days only - no times available). Del - It's still a category axis. I think the magic done under the covers simply skips some categories in between to plot uneven intervals of whole numbers. So we're still stuck with days only. What you could do if you like the way the date axis is formatted (I know I do), is to make a line chart with a hidden series (no markers or lines) to control the axis, then add your real data as XY series, using real dates and times for the X values. These somehow are allowed to display in between categories and show times other than midnight on the days along the axis. This combination Line-XY approach also helps to display data where the series don't have points on the same days. Line chart series are tied to the dates for the first series, but XY series are independent of each other. - Jon ------- Jon Peltier, Microsoft Excel MVP Tutorials and Custom Solutions Peltier Technical Services, Inc. - http://PeltierTech.com _______ |
#5
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Time-date chart plotting
Jon,
This is just what I need. I've had a go, but am failing miserably so far. I've been looking at your pages for an example but no joy so far. If there is a specific example on your site could you please point me at it. Thanks |
#6
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Time-date chart plotting
Too bad you deleted the post you were replying to.
- Jon ------- Jon Peltier, Microsoft Excel MVP Tutorials and Custom Solutions Peltier Technical Services, Inc. - http://PeltierTech.com _______ "David" wrote in message ... Jon, This is just what I need. I've had a go, but am failing miserably so far. I've been looking at your pages for an example but no joy so far. If there is a specific example on your site could you please point me at it. Thanks |
#7
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Time-date chart plotting
On Wed, 25 Jun 2008, in microsoft.public.excel.charting,
Jon Peltier said: "David" wrote This is just what I need. I've had a go, but am failing miserably so far. I've been looking at your pages for an example but no joy so far. If there is a specific example on your site could you please point me at it. Too bad you deleted the post you were replying to. Jon, this is the context: On Sat, 8 Mar 2008, in microsoft.public.excel.charting, Jon Peltier said: "Del Cotter" wrote in message Midjack said: How can I create a time-date graph such that the values are plotted at the correct time positions within the date range rather than all on the date vertical axis? Choose Chart type XY (Scatter) instead of Line. Line has only the options of Category (which won't distribute the values properly) and Time-scale What you could do if you like the way the date axis is formatted (I know I do), is to make a line chart with a hidden series (no markers or lines) to control the axis, then add your real data as XY series, using real dates and times for the X values. These somehow are allowed to display in between categories and show times other than midnight on the days along the axis. This combination Line-XY approach also helps to display data where the series don't have points on the same days. Line chart series are tied to the dates for the first series, but XY series are independent of each other. -- Del Cotter NB Personal replies to this post will send email to , which goes to a spam folder-- please send your email to del3 instead. |
#8
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Time-date chart plotting
I figured it was something like that. Too lazy to look it up.
Here's the protocol, which doesn't work in 2007 (doh! MS broke the independence of the XY and line series in a combo chart with a date scale axis). Make a series with two points, like the min and max of your X axis (date-time), and zero y values. Format the axis as you like it, and format the series to be invisible (no line, no markers). Copy the XY data for the XY series, select the chart, use Paste Special to add the data as a new series. Right click this series, Chart Type, choose XY. Right click the series (now XY), Format, and move it back to the primary axis. Repeat to add more XY series if necessary. I have an upcoming series for my blog which will deal with category axes, but I need more time to make it pretty. - Jon ------- Jon Peltier, Microsoft Excel MVP Tutorials and Custom Solutions Peltier Technical Services, Inc. - http://PeltierTech.com _______ "Del Cotter" wrote in message ... On Wed, 25 Jun 2008, in microsoft.public.excel.charting, Jon Peltier said: "David" wrote This is just what I need. I've had a go, but am failing miserably so far. I've been looking at your pages for an example but no joy so far. If there is a specific example on your site could you please point me at it. Too bad you deleted the post you were replying to. Jon, this is the context: On Sat, 8 Mar 2008, in microsoft.public.excel.charting, Jon Peltier said: "Del Cotter" wrote in message Midjack said: How can I create a time-date graph such that the values are plotted at the correct time positions within the date range rather than all on the date vertical axis? Choose Chart type XY (Scatter) instead of Line. Line has only the options of Category (which won't distribute the values properly) and Time-scale What you could do if you like the way the date axis is formatted (I know I do), is to make a line chart with a hidden series (no markers or lines) to control the axis, then add your real data as XY series, using real dates and times for the X values. These somehow are allowed to display in between categories and show times other than midnight on the days along the axis. This combination Line-XY approach also helps to display data where the series don't have points on the same days. Line chart series are tied to the dates for the first series, but XY series are independent of each other. -- Del Cotter NB Personal replies to this post will send email to , which goes to a spam folder-- please send your email to del3 instead. |
#9
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Time-date chart plotting
Thanks for that Jon (and sorry about deleting post last time)
I am using Excel 2002 I followed your protocol and produced a chart but the xy data did not quite line up with the category x axis like i was hoping. Here's my numbers: Line chart: (01/01/01, 0) (03/01/01, 0) set xmin = 01/01/01, set xmax = 04/01/01 xy data: (01/01/01 05:00,1) (03/01/01 17:00, 4) after copy, paste special, chart type = xy, format\axis\primary axis I find that the 2nd xy data point is out of position in the 04/01/01 interval on the x category axis (rather than 17/24ths along the 03/01/01 interval as hoped for) Is this in line with your expectation? Thanks "Jon Peltier" wrote: I figured it was something like that. Too lazy to look it up. Here's the protocol, which doesn't work in 2007 (doh! MS broke the independence of the XY and line series in a combo chart with a date scale axis). Make a series with two points, like the min and max of your X axis (date-time), and zero y values. Format the axis as you like it, and format the series to be invisible (no line, no markers). Copy the XY data for the XY series, select the chart, use Paste Special to add the data as a new series. Right click this series, Chart Type, choose XY. Right click the series (now XY), Format, and move it back to the primary axis. Repeat to add more XY series if necessary. I have an upcoming series for my blog which will deal with category axes, but I need more time to make it pretty. - Jon ------- Jon Peltier, Microsoft Excel MVP Tutorials and Custom Solutions Peltier Technical Services, Inc. - http://PeltierTech.com _______ "Del Cotter" wrote in message ... On Wed, 25 Jun 2008, in microsoft.public.excel.charting, Jon Peltier said: "David" wrote This is just what I need. I've had a go, but am failing miserably so far. I've been looking at your pages for an example but no joy so far. If there is a specific example on your site could you please point me at it. Too bad you deleted the post you were replying to. Jon, this is the context: On Sat, 8 Mar 2008, in microsoft.public.excel.charting, Jon Peltier said: "Del Cotter" wrote in message Midjack said: How can I create a time-date graph such that the values are plotted at the correct time positions within the date range rather than all on the date vertical axis? Choose Chart type XY (Scatter) instead of Line. Line has only the options of Category (which won't distribute the values properly) and Time-scale What you could do if you like the way the date axis is formatted (I know I do), is to make a line chart with a hidden series (no markers or lines) to control the axis, then add your real data as XY series, using real dates and times for the X values. These somehow are allowed to display in between categories and show times other than midnight on the days along the axis. This combination Line-XY approach also helps to display data where the series don't have points on the same days. Line chart series are tied to the dates for the first series, but XY series are independent of each other. -- Del Cotter NB Personal replies to this post will send email to , which goes to a spam folder-- please send your email to del3 instead. |
#10
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Time-date chart plotting
You have to format the date scale axis so that the value (Y) axis does NOT
cross between dates. Otherwise the chart is still correct, but the ticks occur at noon, not at midnight, so the XY points appear incorrect. - Jon ------- Jon Peltier, Microsoft Excel MVP Tutorials and Custom Solutions Peltier Technical Services, Inc. - http://PeltierTech.com _______ "David" wrote in message ... Thanks for that Jon (and sorry about deleting post last time) I am using Excel 2002 I followed your protocol and produced a chart but the xy data did not quite line up with the category x axis like i was hoping. Here's my numbers: Line chart: (01/01/01, 0) (03/01/01, 0) set xmin = 01/01/01, set xmax = 04/01/01 xy data: (01/01/01 05:00,1) (03/01/01 17:00, 4) after copy, paste special, chart type = xy, format\axis\primary axis I find that the 2nd xy data point is out of position in the 04/01/01 interval on the x category axis (rather than 17/24ths along the 03/01/01 interval as hoped for) Is this in line with your expectation? Thanks "Jon Peltier" wrote: I figured it was something like that. Too lazy to look it up. Here's the protocol, which doesn't work in 2007 (doh! MS broke the independence of the XY and line series in a combo chart with a date scale axis). Make a series with two points, like the min and max of your X axis (date-time), and zero y values. Format the axis as you like it, and format the series to be invisible (no line, no markers). Copy the XY data for the XY series, select the chart, use Paste Special to add the data as a new series. Right click this series, Chart Type, choose XY. Right click the series (now XY), Format, and move it back to the primary axis. Repeat to add more XY series if necessary. I have an upcoming series for my blog which will deal with category axes, but I need more time to make it pretty. - Jon ------- Jon Peltier, Microsoft Excel MVP Tutorials and Custom Solutions Peltier Technical Services, Inc. - http://PeltierTech.com _______ "Del Cotter" wrote in message ... On Wed, 25 Jun 2008, in microsoft.public.excel.charting, Jon Peltier said: "David" wrote This is just what I need. I've had a go, but am failing miserably so far. I've been looking at your pages for an example but no joy so far. If there is a specific example on your site could you please point me at it. Too bad you deleted the post you were replying to. Jon, this is the context: On Sat, 8 Mar 2008, in microsoft.public.excel.charting, Jon Peltier said: "Del Cotter" wrote in message Midjack said: How can I create a time-date graph such that the values are plotted at the correct time positions within the date range rather than all on the date vertical axis? Choose Chart type XY (Scatter) instead of Line. Line has only the options of Category (which won't distribute the values properly) and Time-scale What you could do if you like the way the date axis is formatted (I know I do), is to make a line chart with a hidden series (no markers or lines) to control the axis, then add your real data as XY series, using real dates and times for the X values. These somehow are allowed to display in between categories and show times other than midnight on the days along the axis. This combination Line-XY approach also helps to display data where the series don't have points on the same days. Line chart series are tied to the dates for the first series, but XY series are independent of each other. -- Del Cotter NB Personal replies to this post will send email to , which goes to a spam folder-- please send your email to del3 instead. |
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