Identify Max And Min Peaks Of Sine Wave
Dec 2, 2013
I have raw data from a cyclic test that needs to be refined to generate a simple trend.
The raw data has about 1000 points to each complete cycle and im only interested in the maximum and minium values of the peaks. This would be easy but I am typically dealing with 15 cycles a second and in some instances up to 5,000,000 cycles in one test.
The amount of data is too large to be completed in one file but if done in parts I can then use a formula to reduce the number of max and min peaks chosen i.e. 1 in 100.
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Feb 15, 2010
i have some numbers as data, i want to find the function that generate thiese numbers and also i want to view the chart of it, its kind of sine wave graph.
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Oct 8, 2008
I have a set of data about with approx 7500 cells all contained in one column. The data has a series of peaks that happen, and I need to identify each peak value and place it in a cell. The peak does not occur at regular intervals but they are somewhat regular, as in within 130-230 data points. So, if one could find the first peak in the first 200 cells, identify it and store it somewhere, then look in the next 200, store it, etc. I don't know how to do that in excel.
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Jul 18, 2006
i was set some work related to maths to be carried out in VBA. the problem for me is im finding it very hard to understand either and so i cannot seem to work out how to complete the assignment given.
i can attach the assignment to save space and time reading on here however if you would like me to post up the assignement i can do that too....
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May 5, 2009
I've collected some data from a GPS logger regarding the speed of an athlete. I want to calculate how many sprints this particular athlete undertook during a training session.
Sprinting is defined as a speed of > 20 kph.
One sprint would be the attainment of one peak >20 kph before decreasing below 20 kph.
It's easy to identify the 3 peaks and thus sprints from the xy scatterplot in the attached file, but I'm struggling to find a way to calculate this.
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Feb 23, 2010
to calculate the difference between peaks in an excel graph, but i need to do it between every two peaks.. I was just wondering could anyone tell me how to do this with some sort of formula or a vba file
Ive attached a picture. I need to calculate the difference between the blue peaks along the x-axis.
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Aug 14, 2013
I have attached an excel file. What I would like to find is the average of column D (number) with respect to column A (Genotype ) and also different wave length (Column C). i.e.:
Genotype 1 to its corresponding value in column D for wave length 450
Genotype 1 to its corresponding value in column D and for Wave length 470 to and so on.
Attached File : test2.xlsx‎
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Sep 24, 2007
how to calculate in data serie cyles the:
- Mean Amplitude
- The Time (minutes) cycle between Maximum and Minimum cycle values (If the Cycle value X Amplitude)
- Cycle Mean Time.
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Jun 30, 2014
I was wondering if excel can auto label peaks and bottoms of a graph? Let me go further:
I have a graph that has one data number for every day of the year (365). This is a natural up and down curve, similar to a stock.
Can excel find the key high and low points? I have attached an example. In it you will see I have quickly labeled the key tops and bottoms. CHART TEST.xlsxCHART TEST.xlsx.
I basically omitted the peaks/bottoms that are very short term and irrelevant.
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Jan 5, 2003
I'm using this simple code to play a wav file I loaded into a worksheet:
ActiveSheet.Shapes("Object 1").Select
Selection.Verb Verb = xlclose
I attached the macro to a button and it works. Now I need to stop the wave sound playing, by attaching another macro to a button. Is that possible? What syntax shall I use to stop playing the sound?
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Sep 14, 2013
I'm using this simple code to play a wav file I loaded into a worksheet:
ActiveSheet.Shapes("Object 1").Select
Selection.Verb Verb = xlclose
I attached the macro to a button and it works. Now I need to stop the wave sound playing, by attaching another macro to a button. Is that possible? What syntax shall I use to stop playing the sound?
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Dec 3, 2013
I have a worksheet with a large amount of data in it. Every couple of months the data will change and I place this in a different sheet (sheet 2, this comes from a software tool) . Is there's some code that can run a check on sheet 1 compare all values against sheet 2 and highlight the rows that have a different value between sheet 1 and sheet 2? Perhaps paste the rows into sheet 3 with the different value highlighted??
Example of original and changed data attached : example_2.xlsx
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Mar 4, 2014
(I cannot attach the files as it is all personal information) Basically its list that looks like this:
2014-02-11 John Doe
2014-02-12 John Doe
2014-02-17 John Doe
2014-02-10 Mary Jane
2014-02-11 Mary Jane
2014-02-16 Mary Jane
2014-02-10 Frank Simms
2014-02-11 Frank Simms
2014-02-18 Frank Simms
2014-02-11 Tony Sly
2014-02-12 Tony Sly
2014-02-17 Tony Sly
Im trying to identify anyone who does not have an entry on 2014-02-17. I've played around with combing IF and VLOOKUP and Conditional formatting but I couldn't seem to get it to work. If it were to find a date, no problem, but to find someone without that date I'm having issues. If there was a way to highlight or identify Mary Jane and Frank Simms since they don't have an entry on 2014-02-17, that would be great.
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Nov 9, 2009
I have two worksheets one worksheet contains Insurnace names and Addresses from a hospital. I need to match these up to specific Insurance codes from a billing company worksheet. The bad thing is my billing database has multiple duplicate addresses for different insurances (Yes this does happen where different Insurances have the same address-don't ask me why). So originally I did a VLOOKUP where I looked up the address from the hospital Spreadsheet and matched it to the Insurance Specific code. The pitfall to doing it this way is that it only grabs the first exact match from the Billing worksheet. Is there a way to either automatically identify the possible matches and allow me to choose which one is the exact match or how do I just identify duplicates on my billing worksheet and match them manually? I attached the worksheet.
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Apr 22, 2009
I want a function that identify the row number, where the date in column A is the same of the active row, but the value in Column B is equal to a different text e.g.=”zz”?
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Oct 2, 2009
I'm trying to identify the last used row in Column A of my DestinationSheet so that I can add data to the row below it, but I'm receiving the following error: Run-time error '91': Object variable or With block variable not set And it's directing me to this line of
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Jan 5, 2010
I need help with creating a simple formula.
What I have:
..A B C D E
1 3 4 6 5
2 6 2 3 8
I want to identify that A1, B1, C1, D1 are > B2. My formula will be placed in E1 so then I want a value of 1 to show up in cell E1 indicating the identification was successful. I can't figure out how to make this happen. My formulas so far in E1: =sum(A1>B2)&(B1>B2)&(C1>B2)&(D1>B2) This formula comes up with 0FALSEFALSE instead of the value of 1 I am desiring.
What I want:
..A B C D E
1 3 4 6 5 1
2 6 2 3 8
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Mar 30, 2007
I am using ADO connections in my program to insert the datas in the excel. I want to find if the excel is locked by another user. How do i do this in ADO commands.
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Dec 28, 2007
I have written a UDF to do some calculations i a workbook. I would like to run a sub, checking the cells in the spreadsheet to see if my formula is present. and if so, then add or change an argument in the formula. My problem is:
How do I write the code so that it will recognize my formula ? Is it possible to attach a tag to a formula which Excel can search for ? I cannot search for the formula including arguments from specific cells, relativ to the formula cell, as the user is free to input the arguments with reference from anywhere in the workbook.
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Jan 24, 2008
I am looking for a way to search using macros. Currently i can search/find by cell, but i need to find with mulitple cells. An example is, sheet 1 "A2" and "B3" date needs to be compared to sheet 2 to see if the data is already in sheet 2. Column A is first name and Column B is last name. Need to know if that full name (first and last) is already in second sheet. I can already search for just the first name or just the last name but now the two together.
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Nov 3, 2013
A person on this board did this for me with this so far and I need to be able to view more than 16 rows. I would like to view all the rows it finds. I have 62,000 rows on information this far and will exceed 500,000 so you can see my need to see all involved to save hours of sifting through data. I would also like a place up top near the box (column G.H)(3,4,5) another box for me to enter a new number combination to search. Presently I have to go through the data to find the first one which is also time consuming. I would like to be able to put say for example in the area I am mentioning:
2 6
4
2 8
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May 24, 2014
I have put a rectangle shape in a cell in excel. The shape is within the border of a particular cell.
Is there a way to find the reference of the cell on which that particular shape resides.
For example, I have kept a rectangle shape in cell F5. I was looking for a macro which would return the cell reference "F5" in which the shape resides.
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Aug 23, 2007
I have a task to identify all the numbers in sequence in a worksheet, how do I do that?
Ex:
Column A
1
2
3
4
5
7
9
10
11
12
13
14
15
16
20
21
22
Desired output 1-5,7,9,10-16,20-22.
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Jul 12, 2008
Have a list of approx. 125 people (for our church's prayer list). What I would like to do is have a formula/macro that will identify and print the ones on the list
-that have been on the list less than 2 months
-identify by printing one "*" by thier name when the 2 months will be up in 2 weeks
-identify by printing two "**" by the name when the person will be removed in one week.
Another way of stating what I am wanting Excel's functions to do is the following:
In one column, I would enter the date a person is added to the list, then I would want the formula/macro to calculate the date the person would be removed from the list. When the list is printed weekly for our bulletin, I would like the program to create the list/print only the persons who have been on the list less than two months. In addition, I would like for the ones that will be removed in 2 weeks to be identified with an asterick when the printing is done. Then 2 astericks when the person would be removed in one week.(This would allert people to update us on the person's condition and continued need for special prayer.)
Of course, I would like this calculation to be done automatically when the data base is opened. OR REQESTED. I'm not sure of my terminology here! I want the calculations to be done without me having to redo the database and formula/macro weekly.
I sure hope this request is clear!
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Apr 3, 2009
I have a worksheet which records whether a form was filled out in a specific time period . Now I'm down to the last fews bits.... See on the example attached (Sheet is TOP Report) - I have now managed to put formulas in to work out if the TOP was done in a particular time window, however I now need to figure out for each client which windows were missed, e.g on row 7 I can see by looking that the client missed windows 1 and 4, but is there a way to get excel to tell me this without me having to read each line??
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Apr 7, 2009
I have a column that has dates going vertically down from 1/1/2009 - 1/7/2010. I need a formula that will return the date for every other Friday beginning with the second Friday in January 2009.
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Apr 14, 2009
It's a time sheet that I need to have whatever data is listed in column E to be listed starting in cell C27 but only once even if it's listed several times. In cell D27 I need the sums to match the data to it's left with the values from above in column D. I've used fill colors to help show my intent. I would also like it to keep track of remaining vacation time by recognizing the word 'VAC' from column E and subtract the value from it's left. This value is shown in cell J26 as '46hrs REMAINING'.
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May 22, 2009
i currently have two columns (e.g. A2:A400, B2:B20) and i am trying to match all the values in B to A, displaying TRUE or FALSE (if the values from B don't appear in A) in column C.
i have tried using the various formula for duplicates, substituting what i thought would be the correct formula, but to no avail.
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Nov 18, 2009
I am trying to identify milestone anniversaries of 1,5,10,15,20,25,30,35,40 and over 40 from the date an employee joined the Company but only between the dates of 1st July 2009 to 30th June 2010. It's the split year part that I am having trouble with.
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Jan 8, 2010
If I have 1 Jan thru 31 Dec in A1 - A365, is there a way I can identify every weekend by placing 'X' in Col B alongside every occurrence of Saturday and Sunday?
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