Is there any way of extending a polynomial trendline in Numbers '09?

Hi,
The question title says it all really.  Is there any way of extending a polynomial trendline in Numbers '09, beyond the data that I currently have?  I can do this in Excel, but would like to be able to do this in Numbers too.
Thanks,
Nick

Unfortunately there is no "forecast" feature for trendlines in Numbers. Wayne showed how to use the trendline equation from the chart to create additional data points for the chart.  This is by far the simplest way to do it in Numbers but it has two drawbacks:
If your data changes, you'll need to manually readjust the coefficients for your forecasted point(s).
The precision of the coefficients is only three decimal places. The forecasted Y values using these coefficients might not be as accurate as you would like. For example, compare the forecasted Y value in Wayne's table at X=20 to the one in the table below.
You can avoid both problems by calculating the trendline coefficients in your table using the LINEST function. it is a little more work in the setup but it might save you time in the long run if your data changes a lot. Here is an example of for 2nd order polynomial:
The last "real" data point is in row 10.
Formula for column D =A
Formula for column E =A*A
F2 = the coefficient for X^2 =INDEX(LINEST(B2:B10,D2:E10),1)
G2 = the coefficient for X =INDEX(LINEST(B2:B10,D2:E10),2)
H2 = the constant =INDEX(LINEST(B2:B10,D2:E10),3)
Note: If you later need to add an additional data point at the end of your data, go to the last row of your data (in this example it is row 10) and "add row below".  This way the formulas for the coefficients will adjust automatically to include the new row.

Similar Messages

  • Evaluation of SQL Server 2012 R2 expired is there any way to extended the evaluation time?

    Hello,
    My Evaluation of SQL Server 2012 R2 expired is there any way to extended the evaluation time?
    Please let me know,
    Thank You! and Happy New Year

    Hello,
    Try to roll back the time of the computer to a few days back until you are able to perform an edition upgrade.
    Hope this helps.
    Regards,
    Alberto Morillo
    SQLCoffee.com

  • Is there any way to extend the spin time?

    I'm retrieving heaps of old jobs from archived CDs and DVDs and what's becoming apparent is the time the CD/DVD is spinning. I can understand saving energy etc, but it's not very long at all, which means I've been spending about 3 or 4 seconds per job, waiting for the disc to spin up. Times that over the hundred+ jobs I've got, and it'll add up.. Is there any way to extend the spin time to something more like 30 seconds, or something else?

    Hello Kit,
    The only thing you could try is to deselect the "spin down hard disk's when possible" option in the energy saver System Pref's. I doubt this will provide much success, but its worth a shot.
    Cheers
    Bryza_Bone

  • Is there any way to extend the roaming data expiration period?

    The title says it all:)
    Is there any way to extend the 30-days roaming data expiration period?

    No, this is not controllable directly by apps or by users (and 30-days is not contractual).
    If your app needs to store data in the cloud perpetually then you'll need to use your own server.
    If the app is installed then roamed data will still be saved on the client systems until the user removes it.

  • Is there any way to extend an object past the canvas?

    I'd like to know if there is any way to extend an object past the canvas and onto the background of a web page created with iWeb '08. When I move an object it gets clipped at the edge of the canvas. What I'd like to do is:
    1) Place AdSense outside the canvas, to the right, on the background.
    2) Place an image so part of it is on the canvas, and part of it is on the background. (kind of like the iWeb icon where the picture extends past the cork board)
    Is this possible to do with iWeb? If not, is it possible to do editing the HTML once it has been generated?
    When I move an object so its partially on the canvas and partially on the background, what make the part on the background invisible? Is there a piece of CSS that's doing this? (and if so how do I turn it off)
    Thanks,
    Jeff

    Jeff:
    Look at Cyclosaurus' post in this topic: http://discussions.apple.com/thread.jspa?messageID=9273769#9273769. It may address what you're wanting to accomplish.
    OT

  • Is there any way to extend an enum from other enum

    I using enums with some abstract methods etc. I created new enum and wanted to extend this with the prior and compiler tells it as error. Is there any workaround for extending enum to other enum ?

    You can have both enums implement the same interface and use them that way. Joshua Bloch alludes to this in Effective Java 2nd Edition.
    - Saish

  • Is there any way to open an .xlsb file in numbers?

    Our ad department has recently upgraded their windows PCs, and it seems the new default for Excel to save is .xlsb (excel binary workbook). Is there any way to open this in Numbers, or is my only answer to go over to them again and again, to get them to resave in .xls or .xlsx?

    jamilKC wrote:
    Our ad department has recently upgraded their windows PCs, and it seems the new default for Excel to save is .xlsb (excel binary workbook). Is there any way to open this in Numbers, or is my only answer to go over to them again and again, to get them to resave in .xls or .xlsx?
    Ask them to resave as .xls
    If they are polite enough, I'm quite sure that they may change their default format to .xls.
    Yvan KOENIG (VALLAURIS, France) jeudi 1 avril 2010 18:24:03

  • HT4262 Is there any way to extend my Apple Extreme Base Station using an Apple Express by via ethernet or does it only work via wifi and being in range?

    From what I read, the only way to extend my Apple Wifi Network is via another Apple Airport Extreme or Express using overlapping wifi zones. If I try to connect my Apple Express to my Apple Extreme via Ethernet, then this is guaranteed to fail regardless of how I configure the Express. Is that correct?

    It is certainly possible and better....in terms of performance.....to connect the AiPort Express to your AirPort Extreme using Ethernet to extend the network that way.
    If you are having problems with this, then your setup is not correct....or....if your setup is correct, you may have a defective AirPort.
    We can walk you through the steps to get things set up correctly if we can get some basic information to provide the correct settings.
    What is the model number of the AirPort Extreme?
    What is the model number of the AirPort Express?
    if you are not sure, look on the bottom of the Extreme and side or bottom of the Expess. The model number starts with an "A" followed by four numbers.
    We also need to know what operating system you are using on your computer. If you have a Mac, click the Apple icon in the upper left corner of the screen, then click About This Mac and post back with the OS X Version number that you see there.
    We will likely have more questions about your current setup to understand things a bit better, so please be patient.

  • How can I get my Recently Added back to how it was before I reset? Also, is there any way to sort a playlist by the numbering (i.e. 1, 2, 3)?

    Basically, I reset my computer (not rebooted; reset, as in wiped it clean) and backed up all my music. After putting the songs back onto my iPhone, the playlists like My Top Rated and Recently Played were empty, of course. For Recently Added, all of my songs were in there. I imported my playlists and most were back to normal. However, the first 13 songs in my Recently Added were the same as before I reset my computer, which I found really odd, so I figured that they were sorted somehow for that to happen--they had to be. The rest of the songs were all of my other songs.
    Anyways, I can't find a way to get my Recently Added to just have those 13 songs and it's really irritating me. Is there a way??? Yes, I've tried limiting to 13 items. I've also tried sorting by name, and the "most recently/least recently added" options didn't work either. How can I sort it by numbering, as in the actual numbers next to the Artist name???
    Also, notice how the first 13 songs are sorted by Name and after those songs, the rest are sorted by Artist Name. So, I'm thinking this issue is fixable. It's peeving me!

    lil9lovely3 wrote:
    For Recently Added, all of my songs were in there. I imported my playlists and most were back to normal. However, the first 13 songs in my Recently Added were the same as before I reset my computer, which I found really odd, so I figured that they were sorted somehow for that to happen--they had to be. The rest of the songs were all of my other songs.
    A smart playlist like "Recently Added" is based on the date that a track is added to your library.  Since you erased your computer and re-built your library from scratch, all your tracks are considered "recently added" because iTunes assigned a new date to each song as it was re-added to your library.
    Instead of re-building your library from scratch, and re-importing certain playlists you had saved, it might've been better to have simply recovered your "iTunes Library.itl" file.  That is the index that points to where all your song files are, and contains all your playlists, and has properties such as ratings, last played date, and date added.  As long as the native files for your songs are in the same place, you could re-use your "iTunes Library.itl" file if you saved a copy before you erased your computer (always back that file up along with your native files, the .itl file IS your library).
    As far as why the Recently Added playlist starts with 13 particular songs, then proceeds with the rest of all your songs in alphabetic order, it is possible that either you (or iTunes) started adding the songs back with the 13 most recent songs you had previously added to your library before it was erased, and once those were added then things proceeded by artist in alphabetical order.  Not sure, but there's really nothing you can do about that other than replace your .itl file with the original version if you still have it somewhere.

  • Is there any way to extend the length of the Apple component AV cable for the original iPad?

    I have an original iPad, but the component video cable is too short to really do any good. Can it somehow be extended. It would really be useful if there was an adapter for the 30-pin connector that goes into the iPad itself so that one wire could extend the AV cable another 10-15 feet. I know of no such adapter. Is there one out there?
    My goal is to stream YouTube videos from my iPad to my Samsung HDTV. I guess I could buy an Apple TV and do it wirelessly through my Airport Expresses.
    Anyway, I would appreciate some advice from anybody who has tried to accomplish the same or similar things.

    Have you been able to get this cable to work on your iPad? I just went out and bought this cable so I could stream YouTube, Netflix and my other video on my iPad and the component cable wasn't working. I went back to my Apple store and replaced it with the composite video cable and everything works fine. I do not think that the component cable works with the original iPad because its output is not HD. Anyhow, you should be able to buy extender type cables at any Radio Shack, or any audio/video retailer. Look in the cables section. keep in mind you'll need both Audio cable and component video cable extended cables to increase the distance you are using these at. Keep in mind, also, that the iPad is basically useless while playing video. You can't multitask while watching the video because,depending on what apps you have that do video mirroring, you'll end up leaving the video and whatever app you're working in will show up on your TV screen. When I watch video I just leave my iPad close by the TV and walk up to it to play or pause video. Can't use it for anything else while the movie is playing, anyway. ;)

  • Hi Everyone, I am Sreedhar , I need to extend the Wireless Network which is connected through cable in Airport Express, Without Airport Extreme Base Station is there any way to extend my WIFI

    Need Help

    Let's see if I can get this straight.
    You have an Airport Extreme base station that is set to "Create a wireless network" and you have the box checked for "allow this network to be extended"....
    Then you have an Airport Express that is set to "Extend a wireless network" which you selected the name of your network in the box...
    Correct?
    See this Apple document:
    http://support.apple.com/kb/HT4259?viewlocale=en_US&locale=en_US
    The wireless unit on the right of the diagram can be either of the newer Apple base stations.
    Extreme, Express, Time Capsule

  • Is there any way to set up a system in Numbers where numbers from individual spreadsheet can get funneled into a Master Spreadsheet to calculate the total of all of the individual spreadsheets automatically?

    I use Numbers for my business and I currently use it to create individual invoices and then (manually) enter the totals from the invoices into a Master Spreadsheet where I can see the sum of the individual totals.  Is there anyway to set up a formula or a system that automatically funnels the numbers from the Individual Spreadsheets into the Master Spreadsheet to calculate a total?

    Marni,
    If you can tolerate all the data and the summary being in a single document, this can be done. Any cell in a document can reference any other cell in the same document for the purpose of making a summary or other calculations.
    Jerry

  • Is there any way i can keep pages documents and numbers documents in the same file?

    Im trying to group pages and numbers documents in the same file is this possible?

    Not on the iPad itself, no. iOS apps keep their documents within each app itself. You would need to save the documents to a WebDAV server. Dropbox can serve this function if partnered with DropDAV. See:
    http://techinch.com/blog/integrate-dropbox-with-pages-keynote-and-numbers-on-ipa d
    Regards.

  • SCCM 2007 Site Server Signing Certificate - Any Way to Extend Life of Template

    Good morning,
    It looks like my Site Server Signing certificate can't be renewed past the five year validity that the template was given.  So, come Feb. 14th, I can't renew my existing Site Server Signing certificate.  Is there any way to extend the life of the
    certificate template so I can just "renew" the existing certificate on my server as opposed to creating and distributing a new one?  Thanks for any help anyone can provide.

    Good morning,
    It looks like my Site Server Signing certificate can't be renewed past the five year validity that the template was given.  So, come Feb. 14th, I can't renew my existing Site Server Signing certificate.  Is there any way to extend the life of the
    certificate template so I can just "renew" the existing certificate on my server as opposed to creating and distributing a new one?  Thanks for any help anyone can provide.

  • Is there any way to lengthen the time an iPhone rings?

    Is there any way to extend the time of the ring tone? I have an iPhone 4 with IOS 7.

    The ring duration is controlled by the carrier. Ask them.

Maybe you are looking for