Use LINEST In A Way In Which X Values Unknown?
Jun 23, 2014is there a way to use LINEST in a way in which the x values are unknown and the y values are known? The opposite of how the function usually runs...?
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Summing Across Unknown Range In Unknown Cell
Oct 26, 2009I've been working on a spreadsheet and these forums have been a great help. I'm now at the very last section and, surprise surprise, it's also the hardest!
I'm creating a stock trade recording sheet. I have a userform ask the user to enter a date, a time, the number of stock purchased, and the price of the stock. These are then entered in a new row.
Now what I want to do is have summary cells which say how many stocks were purchased and the total profit made for each day. Since each time is given its own row, I can't know in advance which rows to sum over. I also don't know on which days a trade was made. So a summary cell should only exist if a trade was made that day.
Could I do something like.... check if the date matches then sum over all the values for that date? So if column A has the dates, can I say "Search which rows in column A have this date" then "for those rows, sum column C"?
Also, how would I create a a row for each traded date's summary cell and enter the date in it? I've attached a spreadsheets which manually demonstrates what I want to do (no macros) and a spreadsheet with what I have so far (basic macros).
Any and all help much appreciated, I just need to get my head around creating and dealing with variable ranges. Is that a really advanced task? I don't think this is a one line solution so please bear with me while I make mistakes!
Fill Conditional Cell Values Based On Unknown Number Of Rows
Dec 15, 2009I have a set of data in column R, with an unknown number of rows that looks like this
Days Late
-28
150
3
16
41
.
.
.
and I have written a script to add an adjacent column "S". I want to fill column S with conditional values based on the value of column R, sorted into categories such as "On Time", "Less than One Month Late", etc. Here is what I have so far, it doesn't work:
Copy Values From A Worksheet To Another Workbook. Source Workbook Name Unknown
Aug 12, 2009I need to copy a range of values (actually two ranges). The ranges are of fixed size. Le't say A2:D20 and E2:H20.
Both workbooks have the exact same layout, and they both have the same named worksheet (in this case it's called Entry). However the actual filename of the source workbook is unknown. I know numerous users have changed the filename of the xls file.
I want to instruct them to open the old and new workbook, and open a third workbook containing the copy macro, they run the macro and it copies the data.
How can I reference a known worksheet name but of an unknown workbook name esp when the source and destination share the worksheet name?
VBA - Copying And Pasting Unknown Number Of Values Each Different Number Of Times
May 28, 2014I am trying to come up with a macro that selects values from one sheet and inserts them into another sheet. The number of values will change each time based on the user's entry, as well as the number of times that each entry should be pasted.
For example:
Entry: X | Y | Z
Number of Times to be Inserted to New Sheet 3 | 2 | 1
Result:
X X X Y Y Z
I have spent a while trying to figure it out, however the best I can come up with is using an array, but I can only get one value from the array to paste multiple times:
(*Note: In my testing, I didn't insert into new sheet or set up the array to handle different values, I was just trying to get the basic idea to work)
Dim A(1, 3) As Variant
A(1, 1) = Range("C3").Value
A(1, 2) = Range("D3").Value
A(1, 3) = Range("E3").Value
[Code].....
LINEST
Jun 19, 2008I have a table something like this (much bigger in reality)
1 5
2 10
5 15
7 #N/A
9 20
12 25
I need to interpret the above data with the linest function, but for a variety of reasons i cant delete the error square. How can i get the LINEST to ignore the #N/A and the 7? otherwise it returns an error.
Linest Different From Trendline
Jan 22, 2009I am using Excel 2007. I have two sets of data. y-series is 58.61, 58.66, 58.71 and 58.76. x-series is 0.8313, 0.8309, 0.8305 and 0.8301.
I am trying to fit a quadratic function to this data. When I plot a curve and fit a trendline I get the coefficients for the equation ax^2+bx+c
a=1.3939e-11
b=-125
c=162.5225
The plotted line seems to fit the data fairly well.
However, I want to use the linest function and I am using the formula:
=INDEX(LINEST(B2:B5,A2:A5^{1,2}),1,1)
I change the index column number as appropriate to get the coefficients:
a=-75.23775
b=0
c=110.603763
The coefficients from linest seem to be way out. how I can get the output from linest to be the same as the trendline?
Polynomials (LINEST)
Oct 23, 2008My "calculated" polynomial is not the same as the Trend line on the graph. The one on the graph seems to be correct.
Basically, I am using the LINEST function to create a polynomial equation inorder to extrapolate data. And also with a given equation, and a given y, find x.
Linest Calculation
Feb 12, 2010I'm trying to implement the linest formula in a programming language for my coursework.
I've looked on excel help but it only explains on how the function selects data.
how to the values are calculated and the steps?
LinEst In Vba - Not Using Ranges
Nov 12, 2008I am calculating variables in Vba and want to find their co=effiicients in the for y=a +bx +cx^2. This works great if I output my variables to excel and then pick up this range however as I am generating the variables in vba and have an array of variables I would rather not have to keep spitting them out to excel then picking them up again. The three important lines in my code are:
c(nFix - j) = WorksheetFunction.Index(WorksheetFunction.LinEst(inpv, Application.Power(inps, Array(1, 2))), 1)
b(nFix - j) = WorksheetFunction.Index(WorksheetFunction.LinEst(Range(Vc), Application.Power(Range(SPd), Array(1, 2))), 1, 2)
a(nFix - j) = WorksheetFunction.Index(WorksheetFunction.LinEst(Range(Vc), Application.Power(Range(SPd), Array(1, 2))), 1, 3)
As you can see for c I am referring to inpv and inps these are arrays. I have tried using inpv(), etc but no luck
b and a work great, here I am reffering to ranges Vc and SPd. As I am going through this a lot of times it seems rather inelegant not to be able to do the whole thing in vba - i would rather not use the dump to spreadsheet then pick up again approach!
How Can I Use An IF Statement To Loop LINEST
Sep 2, 2008how to get my LINEST function to work properly. Now, what I'd like to do is have it reduce or increase the order of the polynomial until R^2 equals 1.0, or the polynomial reaches 6th order, whichever comes first.
Can I do this with a bunch of nested IF ELSEIF statements, or is there a cleaner way to do this?
Coeffs Obtained By LINEST
Dec 21, 2006I am trying to obtain the 3 coeffs from a polynomial trendline equation.
The equation produced on the chart is
y = 3.1123x2 + 135.34x + 124.9 from the below info
X Y
1.0 250
2.5 500
5.0 890
7.5 1290
10.0 1800
But when I enter this array formula
{=LINEST(B2:B6,A2:A6^{1,2})}
I get different results.
-48.98,375.89,214.98
LINEST Function Calculation Using Only VBA
May 7, 2005I can do least squares fitting utilizing LINEST and a worksheet. (See attachment.)
I would like to do the same calculations entirely within VBA.
I can specify the values as arrays within VBA :
Sub linest2VBA()
'
' linest2VBA Macro
'
' Keyboard Shortcut: Ctrl+Shift+A
'
Dim dXvalSqd(4), dXval(4), dYval(4), dFirstRegStat As Double
Dim i As Integer
Second Question:
Is there a way to get the remaining regression statistics within VBA by referencing only the three arrays: dXvalSqd, dXval, and dYval?
LINEST - How To Add No-adjacent Columns For The Known_x's?
Apr 27, 2009I need to know how to selec no-adjacent columns for the known_x's in the linest function:
Example:
'- A B C D E
1) 80 63 9 3 26
2) 80 63 9 3 21
3) 74 65 7 2 30
4) 74 65 7 2 20
5) 63 65 9 3 16
=LINEST(A1:A5,KNOW_X'S,TRUE,TRUE)
Is there any way to select for instance: column B and E as known_x's?
I heard about something where we can select total area and then choose which columns should be considered via "{column1, colum2}"..
That is all is missing for me to finish my project!!! Pls your help!!!
LINEST Type Mismatch Error
Mar 1, 2012I have built a user defined function called: portAlpha.
Code:
Function portAlpha(assetCode As String, indexCode As String) As Double
Dim assetCol As Long
Dim indexCol As Long
Dim assetData As Range
Dim indexData As Range
With Sheets("Data")
[Code] ......
I am struggling to get this to work though. Everytime I step over this piece of code:
Code:
portAlpha = Application.WorksheetFunction.LinEst(Range("M4:M63"), Range("N4:N63"), 1, 1)
I get a "Type Mismatch Error". All the values in the range are numbers, and LINEST should return a double, so I am puzzled as to why there is a mismatch...
I have hardcoded the range into the formula just to try and get it to work. Eventually this will be two variables and will look like this:
Code:
portAlpha = Application.WorksheetFunction.Index(Application.WorksheetFunction.LinEst(assetData, indexData, 1, 1),1, 1)
Referring To An Array Column Or Row Of LinEst Function
Jan 13, 2010I am trying to use the LinEst function in a program. There are some good examples on the web but they all refer to a range in the format “A1:A45”. Is there a way to refer to a column in an existing array instead?
For example (thanks to Shg for this code): ....
Autoselect Range/Row Reference For Linest Array Function
Dec 31, 2007I have set up regression in excel using the linest array function which automaticly updates whenever the data it is references changes. Currently the formula in K3 =
=LINEST(K8:K50,M8:N50,TRUE,TRUE) .
Only the Y range in column K changes and then the formula automaticly recalculates the regression parameters. However sometimes the range of valid data changes with each new update so currently K8 to K50 contains valid values and so the formula works. But if the range of valid data now ends at say K45, and the remaining rows (K46- K450) contains #DIV/0!. In this case the formula does not work and I need to go in manualy into K3 and reselect the range to get it to work (in the baove case to =LINEST(K8:K45,M8:N45,TRUE,TRUE)
Is there anyway I can get the formula to update the range (the number of rows to use) in the calculation automaticly so I don't have to go into the formula in K3 and change the range manually everytime the data changes? Basicly I like to use all rows in column K (from K8 to K50) where there is a values and ignore cells with #DIV/0!
I'm guessing the easiest way to do this would be to set up a dynamic range of some sort that feeds into the linest array function so that the end row reference for columns K and M & N changes depending on where the first #DIV/0! occurs in column K.
Formula To Skip Over That Data Point In The LINEST Calculation
Sep 4, 2009I have instances where my Y variables sometimes contain a zero in the data and i need a formula to skip over that data point in the LINEST calculation.
Y variables are in Row 1, Columns A:E
X variables are in Row 2, Columns A:E
The following formula is returning a #VALUE! error: .....
Passing Cell References From A Cell's Text To LINEST Function And A Graph
Mar 2, 2009I'm using Excel 2003 and I'm trying to make my LINEST function and the source cells for a scatter graph use the cell range specified in another cell in the document. I figured out that it was simple to do the following:
I250 contains: 10, shows: 10
I251 contains: ="I"&I250, shows I10
But I can't figure out how to do this in a larger function. I've tried a few things but none of them work. Here is an example where I want it to do a LINEST with y values in cells Ja - Jb and x values in cells Ia - Ib (where a and b are integers specified in cells I250 and J250 respectively):
How To Use * With Unknown Text
Oct 6, 2008i need the same result as in table bellow (yellow column)
I need tipe "Voice" if it word conteind in text
I used ( =IF(D8="VOICE*","voice","data") )
But it doesn`t work
Unknown Characters
Apr 20, 2009Using web queries i get in a cell ie:
3¾
or
1¼
The last part of these "numbers" (3/4, 1/2, 1/4) is text that i want to convert into numbers (0.75, 0.5, 0.25).
If i isolate this text in a cell (with the right() formula) the code() formula gives 63 as result for all the above texts.
I may solve the problen storing these texts (3/4, 1/2, 1/4) in separate cells (pre-fixed in some cells) and then for my new data (from query) do some search/find .
Is there a better way solving this using a different way-macro?
Unknown Cell Entry
Sep 17, 2009I am using a spreadsheet written by someone else that contains a type of cell entry I am not familiar with. These occur in several tables. The first 3 columns of each table contain numbers or basic formulas. These are followed by two columns in which every entry appears to be the following:
{=TABLE(,B33)}
Despite the same apparent "formula", the number displayed in each of these cells is different. If I click on the formula display box (to the right of the cell address box) to edit the "formula", the brackets disappear.
Can anyone tell me what sort of beast I am dealing with here?
Unknown Popup (not A Dialog Box)
Dec 31, 2009I'm modifying a template that originally shipped with Excel 2003 (I have not upgraded to 2007). In the template, there is a pop-up box (not a dialog box) that shows up when I'm on certain cells. I've attached an image of it. It's the yellow box containing the words "Company Information..." etc. I cannot find any way to remove it! It's not a comment, and selecting it doesn't allow you to edit it. What is it, and does anyone know how to remove it?
View 2 Replies View RelatedSUM A Column With Unknown Length
Jun 26, 2012Trying to sum up a column that has an unknown length. This is a canned Excel form that is saved within a software system and is used to create customized documents. Usually, I would enter the table name.field name in a cell to pull the data from various parts of the system.
In this case, that data resides in AA234 of my customized Excel sheet. When the user retrieves this doc from the system, the data could run several rows, starting from AA30 to AA255. So, in my "Total" cell, I've entered =SUM(AA1:AA255), so it will just add up whatever is in the column, regardless of how long it runs upon document generation. When I try to pull the document, I get "=SUM(#REF!)" in that field instead.
Sum To Unknown Rows With Conditions
Apr 24, 2006Need to sum through an unknown number of row generated by advanced filter at run-time
Formula at C16
Data starts at row 57 (from copy/paste - advance filter)
Last row unknown
Criteria to match in A16
Data to be evaluated in B57:B (row unknown)
Found this formula on microsoft.public.excel.misc
=SUM(A57:INDEX(A:A,MATCH(9.99999999999999E+307,A:A)))
Which I modified formy start row
Define An Unknown Range
Aug 13, 2006is it possible to creaate a macro to highlight a range that starts at a1 to a? and there could be blanks amongst that range. the range will be unknown
Identifying An Unknown Range
Mar 11, 2007I'm trying to set a range to a particular cell in Col D but I don't know the row number because this can vary depending on the amount of data entered. At present my code looks like this
Dim MyCount As Integer
Dim r1 As Range
'No of rows in Col D
MyCount = Range("A2:D2", Range("A2:D2").End(xlDown)).Rows.Count
Set r1 = Range(Cells(MyCount, 4))
The problem is with my line
Set r1 = Range(Cells(MyCount, 4))
Sum Across Unknown Number Of Worksheets
Sep 20, 2007The colours are just to mark the ranges
As every month is different the number of sheets adding up to the Red sheets(week total)
will change and the same with the Blue sheet(month end total)
Is there a code I can run for this summing up to be done?
Yellow is where data is entered
Red is where the Yellows range sheets need to add up before it
The Blue is where all the Red range sheets need to add up
Replace Unknown Characters
Oct 4, 2007Is it possible to display a dialog box or msgbox that doesnt have an OK button ?
i.e I want a message that comes up on the screen that says "Links Updating...Please Wait" which then automatically changes to "Links Sucessfully Updated" on completion...I dont want the macro to be interrupted by the msgbox/dialog...
Max And Min Unknown Malfunction With Multiple Criteria
Feb 14, 2014I have a spreadsheet (attached) with historic weather data for a certain location.
Column A (Weather Day)
1-Jan
2-Jan
3-Jan
...
...
31-Dec
Column B (Record High)
28.4
39.2
37.4
...
...
39.2
Column C (Record Low)
-36.4
-38.2
-32.8
...
...
-36.4
I have a user defined/input "Entry Date" & "Exit Date"
The code to return the max is as follows: {=TEXT(MAX((Weather_Day>=Entry_Date)*(Weather_Day<=Exit_Date)*(Temp_Record_High)), "0.0") & " áµ’F"}
This code works perfectly fine for all input dates and returns the Record High between any Entry/Exit day.
The code to return the min is as follows: {=TEXT(MIN((Weather_Day>=Entry_Date)*(Weather_Day<=Exit_Date)*(Temp_Record_High)), "0.0") & " áµ’F"}
It's identical except MAX is now MIN. However, the returned MIN doesn't always return the correct value. It is either correct or returns 0.0.
Examples would be:
Entry Date: 4-20
Exit Date: 6-25
Both values return correctly
Entry Date: 4-21
Exit Date: 6-25
Record High returns correctly, Record Low = 0.0
Entry Date: 4-21
Exit Date: 11-7
Both values return correctly. However, with 4-21 as the Entry, 11-7 is the first Exit date to return a correct MIN value.
