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Regression In Excel

I have two columns of data that I am suppose to do a regression of, I have no idea how regression works in excel. I am suppose to regress one against the other. Can you guys help me get started?

Ryan


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So I've got some data, which has the approximate form of a sine function. I want to find all the x-axis intercepts. I tried using the intercept function and swapping around the y values for the x values, but it only returns 1 value (so I'd guess it uses a linear regression to estimate a single line through the axis).

I was thinking of trying a nested if/and statement but I haven't quite figured out how to do it. Basically I want to identify the two values where it switches from positive to negative and also indentify the values where it goes negative to positive, I can then fit a straight line between them to find a better approximation of the intercept (though it might not be necessary). Preferably I'd like it all one function as I'm not doing it in VBA (I might do later though, we'll see).

Can anyone suggest how I'd find these value or the x-intercept. Any help would be greatly appreciated.


Is it possible to apply a filter to multiple sheets within the same Excel workbook, using the same filter criteria?

For example, suppose you have tables of data on 3 different tabs, all having the same headings. Suppose one of the headings is "gender". If you apply a filter to the table on Sheet 1, to only show the rows containing the word "female", is it possible to have the tables on Sheets 2 and 3 automatically update to only show the "female" rows? Or would you have to manually update the filter criteria in Sheets 2 and 3?

I hope this makes sense. Thank you in advance for any help.


I want to create 6 numbers from 11 numbers..
lets suppose my numbers a 1,2,3,4,5,6,7,8,9,10,11
I want to generate all possibilities of the 6 numbers. But i dont want duplicate series.. I mean 1,2,3,4,5,6 and 6,5,4,3,2,1 are duplicates.

ANY HELPS ARE GREATLY APPRECIATED


I am trying to correct a formula for a productivity worksheet in excel. The idea is that we would have the ability to input the number of hours worked each day and the number of direct hours (working with clients) per day. Then take the daily percentages and add them then devide them to determine the final productivity percentage for the week. Additionally not everyone works a full week so I would need it to only divide the percentages of the days that were completed. Any suggestions? or does anybody know a formula that would accomplish this already? I am good with basic excel and was able to identify a flaw in the current productivity sheet.


I did a bit of browsing on this problem. Found others suffering the same but haven't found any conclusive answer yet.

Every so often when I attempt to save a file, (including save as), Excel won'r let me. By won't let me I mean:

using Save doesn't appear to do anything using Save As doesn't either do anything, the dialog is not displayed and if I am doing via the File menu then the File menu is exited and the previous ribbon tab is displayed (i.ethe one I was on before clicking 'File') if I close the workbook I am prompted to save, close without saving or cancel. Clicking save just invokes the same msgbox again. I can't work out when it goes into this mode. Some days I can work without this problem, other days I encounter this 2 or 3 times.

The only thing I could suspect was I think this started around about the time I installed xlDennis' code library. I have uninstalled the addin and so far so good, but I cannot categorically say that this was the cause.

Anyone have any idea?

Cheers
Jon

Edit: I have read this: http://support.microsoft.com/kb/271513
Doesn't seem to cover the issue I describe


I would like to copy a small table from Word into one cell in an Excel
worksheet. The first column of the table is a list of numbers. I tried
converting the table into text with manual line breaks and tab stops to
divide columns and rows, but that didn't solve my problem.

Excel pastes the data into several rows. When I try to merge them, I
get a warning that the selection contains multiple data values, and
merging into one cell keeps the upper-left most data only.

What I tried that didn't work:
* Formatting the Excel cells as text before pasting the data.
* The various options for "Paste Special." The closest I got was
inserting the table as a Document Object, which could be a workaround,
I guess.
What I am saving for when all else fails:
* The obvious solution of copying row by row into one Excel cell.

The data in the table is information about my dad's medications. I
would like to have reference charts of how to identify the strength of
each tablet by its color and markings. I got the info from the
manufacturers' websites and entered it into tables in Word, which I
would like to copy into a more comprehensive file I am creating in
Excel. The first column of each table is the strength of the tablet,
entered as 1 mg., 2 mg., etc. The subsequent columns describe the
shape, color, and markings. There are 3 tables, each with about 4-5
rows.

Is there a way to copy each one - whether as a table or as text - into
a single Excel cell without losing data?

Many thanks.




Hi peeps

I want to combine data from several worksheets into one worksheet.

For example, I have data in Sheet1 (Columns A,B,C), data in Sheet2 (Columns A,B,C), data in Sheet3 (Columns A,B,C) all with varying amounts of rows. (All the rows contain text data).

I need to combine all of the data from the 3 sheets into a single sheet, Sheet4 (Columns A,B,C), eliminating the empty rows.

I've been looking into this for a while, and can't find anything that really helps. Anyone got any pointers of what to look into?

Any help will be beautiful.

Cheers



I get the error message "reference is not valid" each time I open my spreadsheet. I get this message three times, and once I am done clicking ok on all three of them, my spreadsheet works just fine. The problem is, I have to send it to a bunch people.

I have a sheet with raw data a sheet with pivot tables a sheet with a dashboard and a simple macro
I don't have any #REF cells either.

Someone has any idea of what could be the problem?

thanks

NA


Thought I'd start this topic since there seem to be a number of topics where the answer seems to be to use one of the above rather than other. Thought I'd kick off with my 2 cents' worth.

I have a userform with frames containing textboxes. The user enters a currency value and once they leave the control, then a protected textbox next to it shows the corresponding value in SEK. I started off using the exit event but ran into 2 problems.

If you tabbed out of the last textbox in the frame, the exit event never kicked in (this is documented in other topics but took some time to find). This resulted in me using the exit event for all except the last textbox in the frame that used afterupdate instead I then discovered that the exit events didn't kick in if, instead of tabbing out of the field, I deliberately placed focus in a control elsewhere on the form. Changing the event from exit to afterupdate corrected this. My question then is ... could you guys document in this topic when you would/must use the exit rather than the afterupdate event (or vice-versa).

Thanks


Hi there. I'm using Excel 2007 and often use filters to find inconsistent data (mis-spellings, etc.) and then clean up the data using the fill handle to fill in correctly formatted values. I'm finding that, with a simple filter on, dragging over cells hidden by the filter changes the values in the hidden cells too. This is something I don't remember from my last version of Excel. I'm wondering if I've mis-remembered how this control works, or if there is a setting I can't find.

My goal is to drag and fill (or paste) in a colum with a range of rows wiht some hidden (filtered out) rows, and have the filtered out data be unaffected, if that makes sense.

Thanks!

T


On my calculator, if I divide 462,534.05 by 335 I get 1,380.70. Then if I times 1,380.70 by 335 I get 462,534.50. Which is what I need it to be because I need to calculate the difference of a figure not dividing equally.

On excel, if I divide 462,534.05 by 335 I get 1,380.70. Then if I times 1,380.70 by 335 I get the SAME result of 462,534.05.

I have to account for the difference of not dividing equally so there is some format or accounting function that's preset that I don't want but I have no idea how to fix it or format my excel sheet to calculate as my calculator would.

Please can someone help? Thanks!


I have the strangest problem... somehow, right clicking a cell doesn't
bring up a menu anymore. It happens only when I'm in Excel only... it still
works even if I bring up macro editor within Excel... it only doesn't work
when I'm in Excel. I've tried Options and Customize... nothing there seems
to work...
HELP!!!





I'm unable to group/ungroup rows or columns on an excel worksheet that was
emailed to me by a co-worker. It's an existing file so I don't know what
restrictions were placed on the workbook. What can I do to fix this problem?



I know this question has been asked a bajillion times, so I apologize for the redundancy.

I am working with an Excel spreadsheet and saving it as a .csv file in order to upload to an application that parses out the .csv data as transactions. The system requires .csv files, so this is how I need to save my doc (with this extension). I have been successful at preventing Excel from coverting that long number into scientific format. I have saved as a TXT file, pasted the longer number and it displays correctly. That is all good. But I have to save as a .csv. So if I do that, close the Excel window, and then open again (as the .csv file), the numbers are back to being displayed in scientific format. I have tried creating an Excel doc from scratch and entering text in Text format, to see if this created a cleaner file. But again, the second I save as .csv, close the window and then open that file up again, that dang scientific format is back.

Does anyone have any idea of how to work around this? Once I have successfully gotten the numbers to display as the long-chain number, how can I get them to "stick" so that they don't revert back to scientific format when I reopen the file?

Thanks so much for your help!


Hello All,

I need a macro enabled file to send HTMLbody email with pre populated text to list of receipents.

Any Idea How can i do?

Many thanks
Ben


Hey there,

I have been tasked with introducing userforms into an excel sheet and tbh I'm quite amazed that excel has this capability of adding userforms to excel sheets.

Anyway, I have 2 columns of data in an excel sheet and I wish to add this to a userform so that the userform displays the 2 columns beside each other with headings, like a table. The user should then be able to select a particular row and insert it into the specified cell.

I would also like the user to select a row on the table and then be able to bring up another table depending on the row selected...basically so that the user can draw deeper into the information that they require.

I have an example excel sheet where I have 2 sheets. One sheet is the user entry sheet called User Entry Screen. the next sheet is the tables sheet where my tables are held. Once the user selects the cell shown in the example sheet, it should then bring up the user form. the user then, depending on which item clicked, then gets shown the next window with a table and info on it. then user should then be able to select an item and the cells on the user entry screen would then get populated.

Personally I think this is a really tricky challenge and any help with doing this would be extremely appreciated.

I'll post up further comments as I am trying to work my way through it!

Thanks,

Jag


I'm attempting to filter columns E, G, and I all at the same time. I need to
display rows that have values greater than 0 in any one of those three
columns. So far I can only filter progressively. If I filter column E and
then filter column G, the second filter is only applied to the results of the
first filter.

Does anybody know if it's even possible to do what I'm trying to do?



Hi
I am using Excel 2007 and suddenly I can no longer filter by color. The option is greyed out and so is the sort by Color option. Does anyone have any idea why this would happen?

Thanks in advance.


Hi all,

I've had a long search through your pages to see if this question has been answered before but having browsed through about 50 pages worth of threads I couldn't see anything, but if I am repeating prior information I do apologise.

I've written a macro that is relatively simple. It just takes some information in one format, rearranges it, adds some formatting and performs some calculations. Nothing incredibly fancy but it works fine on my computer.

Now, I need to share this macro with some other people, so basically I've just sent that excel file on to the people that need to use it. Should be fine and in most cases it is, however there is one user who although they can open the file, can't seem to get the macro to run properly.

It seems to get a small way through the macro but then stop with no error messages or any sign that it hasn't completed properly.

I have checked Macro Security level and that is the same as mine, Tools - Add-Ins is the same, In Visual Basic, Tools - References is the same as mine. It is the same Operating system and the same version of Excel.

I have even signed into this person's computer as myself (it's a big company network thing) and tried to run the macro and it works fine, so there is nothing wrong with the hardware.

I've googled and searched and tried everything I can think of but I'm no closer to solving this problem, so if anyone has read through this wall of text and can come up with a possible solution, that would be greatly appreciated to save me from tearing ALL my hair out!

Thanks very much for your time.


Hi!

I have a question regarding filtering of columns, hopefully someone is able to put me on the right track. I have set up Excel 2007 so that I can click on the drop-down menu in each column to filter them.

However, in my data set there is one blank row separating two set of rows. Now, when I apply the filter on a column, all the rows above the blank row filter correctly, but all the rows below stay un-filtered.

I guess Excel only looks at the consequtive rows, then stops when it hits a blank row. Is there any way of applying the filter beyond a blank row (i.e. the whole column)?

Any advice is higly appreciated.


Hi,

I made a budget with many narrow columns and have turned the data into a table. I will only ever filter the data with the left-hand most column. However, all the other columns are filled each with the grey drop-down filter arrow button, and I can no longer see the headings of these columns and frankly seeing 50 little unused arrow buttons is rather ugly. Is there any way to simply remove the filter drop-down buttons on some columns or even all of them, just leaving a filter button at the heading of the first column? I know I can hide the headings, but then I lose sight of the first filter arrow that I use.

Sorry to ask such a bizarre question, but I appreciate your help.

Thanks


Is it possible to import a single text file into Excel, splitting the incoming data across multiple worksheets rather than a single worksheet? Each each row on the text file would be evaluated by the value in one of it's "columns" and written to the appropriate worksheet. The file is "!" delimited and has 11 columns for each row.

Currently, I import the file into one worksheet and cut/paste the rows manually into new worksheets/tabs. The files are very large, sometimes exceeding the 65,536 row limit, which I could avoid if the data was split out coming in.

Any help anyone could provide would be WONDERFUL. Thanks!


I'm sure this has been addressed before, and I'm sure one of you 50lb heads has the answer I'm looking for. I want to generate a bank of 200-300 questions in excel and be able to make a test of 50 questions that will be different every time. I want to be able to do this with multiple choice questions as well as just plain essay questions. Can I have some instruction or examples? Thanks guys!


How do I restrict what I see on my screen (and specifically, limit the scroll
feature) to the rows and columns I'm actually using in an Excel 2003 Pro
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Hi
In excel i have a sheet open with about 30 columns in it. I try to use the scroll bar to move to the right and nothing happens apart from the scroll bar moves along. If i use the right button on the keyboard the scroll bar moves but i cannot see the columns I want. I cannot see anything that would of caused this.

Can anyone help?
Thanks