So you’ve made it to part 3 of Are You Trendy, well done.
In todays final post of Are You Trendy? we will take a break from the maths and discuss techniques and tools that Excel provides to assist us with Trend Analysis.
We will look at 2 techniques, one built-in to Excel called Charts and another which is a User Defined Function (UDF) I developed.
Both techniques have uses in analysis of trends.
Once again all examples below are found on the Examples Workbook.
Excel Charts
Excel has a number of charting styles some of which have the ability to calculate and display Trend Lines.
The following tables shows which charts Do and Don’t support built-in trendlines.
| Supports Trendlines | Doesn’t Support Trendlines |
| Scatter (X Y) | Pie |
| Line | Donut |
| Area | Radar |
| Column | Stock |
| Bar | Surface |
| Bubble |
For those charts that don’t support trendlines, this doesn’t stop us, as Excel users, from adding other series or using other techniques to add trendlines to the charts, it just that we have to do the hard work ourselves and not use Excels built-in skills.
For this exercise we will be using a Scatter (X Y) Chart but the techniques apply equally to all charts that support trendlines.
So lets go: First we need some data.
Next add a scatter chart , Select the data and Insert Chart, X Y (Scatter Chart)
Adding a Trend Line to the chart is as simple as selecting the chart and right click on the Series you want to add the Trend Line to, see below.
You can change the trendlines properties to make it stand out as per the above.
Once you add a Trendline a Format Trendline dialog will appear.
This is the main window for setting Trendline properties and format options.
In this post I am not going to be dealing with the Tab Options of Line Color, Line Style, Shadow and Glow and Soft Edge options, as I am sure you can work out what they do and play with them at your leisure.
Trendline Properties
Once you have added a Trendline you can access the Trendlines properties at any time by:
Selecting the chart
Select the Trendline
Right Click and Format Trendline.
How Many Trendlines Can I Have ?
You can add a large number of Trendlines to each Chart Series in Excel by simply selecting the Right Clicking on the Chart Series and select Add Trendline.
Some of the regression types may not be available on second and subsequent regressions.
Trend/Regression Type
The main section of the Format Trendline dialog is the Trend/Regression Type:
This section lists 5 trend types we are familiar with from the Are You Trendy? (Part 2).
For more details on the individual Tren Types refer to Are You Trendy (Part 2).
The default trend type is Linear ( Y = mX + c ).
You can select each type in turn and see the estimated trend.
Exponential
Linear
Logarithmic
Polynomial
This shows the Trendline for a Polynomial Estimate of Power = 2. Excel supports up to Power = 6.
Power
Moving Average
Moving average isn’t a forecasting tool, but is more of a data manipulation tool, which is commonly used for elimination of short term trends or smoothing of the data source. Some industries use Moving Averages to look at buying and selling opportunities by comparing the current price against longer term trends.
It is possible to use moving average data for trend analysis, but this must be first done manually in Excel and then it can be used with the techniques discussed here.
As such we won’t be discussing its use here.
If you are interested in reading more about the use of moving averages have a look at Moving Average.
Trendline Name
The Trendline Name section by default shows you the Selected Trend Estimation type and your Data Series Name eg: Linear (My Data)
However you can type whatever Name you want by using the custom field:
eg: Huis Fruit Shop Sales Trend
Forecast
The Excel Chart Trendline function allows us the option to project our Trendline a number of periods or X Values into the future or past.
The above will forecast our trend line 50 X axis values past the limits of our data and 10 X axis values prior to the limits of our data and is shown below.
This is a great option to use for 2 reasons.
Firstly you can use this to see where the Trendline will cross the Y axis (X = 0) and is an important check to validate your selected Trendline.
You can see in the example above that the Trendline crosses the axis at -10. If this isn’t correct we can either try another estimation technique or Excel has a tool, which is discussed below, to deal with that.
Secondly, you can use it to look into the future by projecting the Trendline past your data limits.
Misc Parameters
The final 3 parameters
Set Intercept
By default Excel Chart Trendline has used a Const value of True and hence calculates the natural intercept value for the data. If you want to over-ride this with a 0 intercept value Tick the box and select a value
Set Intercept : Not selected
Set Intercept : Selected Value of 10.0
I would always suggest using the Forecast backwards option first to see what the natural intercept is before using this option (Both charts above show the Trendline projected back 10 periods) but the second chart has a Y intercept set manually to 10.
Display Equation on Chart
The Display Equation on Chart options use is self explanatory, it Display the equation to the current Trendline on the current Chart:
The equation is based on the select Trend type.
The equation is also live, in that if you change and selected another Trend Type or the data changes the equation will update, similarly if you select to intercept the Y axis at 0 or another value.
By selecting the Text Box which has the equation the equations Font properties can be changed eg: Font Style, Size, Italic, Bold etc as well as background color.
Display R2 on Chart
This display the R2 value on the chart in the equation Text Box as shown above.
The R2 value is based on the select Trend type.
The R2 value is also live, in that if you change and selected another Trend Type or the data changes the R2 will update, similarly if you select to intercept the Y axis at 0 or another value.
By selecting the Text Box which has the equation the R2 the Font properties can be changed eg: Font Style, Size, Italic, Bold etc as well as background color.
How Can We Look at Values Along a Trend Line?
In Are You Trendy? (Part 2) and in the section above we looked at a number of ways of establishing a Trendline.
So how can I predict values along a Trendline?
There are a few ways and we will discuss 2 of them.
1. Write an equation in excel
2. Use my Trendy User Defined function.
Write an Equation in Excel
In the previous section we had a chart shown below:
The equation for the line of best fit is Y=7.8984.e^(0.0256.X) which in Excel cell formula talk is =7.8984*EXP(0.0256*X Cell)
So we can setup a cell or range of cells in excel to show us either intermediate values or future values of X and the corresponding Y values.
The great thing about having an equation is that we can now use this to animate our chart.
I’m not talking about Avatar style animation, but simply adding a tool for the user to interactively select X values and the equation and chart will show us the new Y value. This even allows us to show future values past the end of our data because we are using the equation to our data.
How do we do this?
Refer to Sample Workbook.
Firstly lets add a cell which will contain the X value
E52 = 10
Secondly add a cell which has our equation
E53: =7.8984*EXP(0.0256*X Cell)
Third add a Scroll Bar Control from the Active X controls on the Developer toolbar and set a few properties
Minimum = 0
Maximum = 300
Linked Cell = E52
Large Change = 10
Fourth add a new series to our chart which will just have a single X and Y value
Series Name = “Our Trend”
X Series = E52
Y Series = E53
You can now interactively move the srcoll bar back and forth and the Chart will show you the new forecast value for our sales in Huis Fruit Shop.
The limitations with the above approach is that it is fixed to the equation you use for your Y value, which is based on your selected choice of Trendline type.
Can we link this technique to the equation from the Trendline ?
With Excel natively, No 🙁 .
TrendY – A User Defined Function for the Analysis of Past, Intermediate & Future Trendline Values
In a post at Chandoo.org user Trevian3969 asked the question “How can I view intermediate values along a Charts trend line?”
The answer was the development of the UDF, TrendY (Trendy).
Trendy was developed to do exactly that, take the equation from a Charts Trendline and evaluate it to determine intermediate, past or future values based on a given X input.
Because the UDF is taking the equation for the trend line it can be used to return a Y value for any X values, prior to, later than or within the supplied or known X Range of the chart.
An Example of the use of Trendy is shown in the attached Workbook
Form: = TrendY(X Value, [Chart No], [Series No], [Trendline No])
X Value: Is the X Value that you want to know the Y Value of the Trendline
Chart No: Chart No is optional and is the Chart No on the current sheet, Default or omitted = 1
Series No: Series No is optional and is the Series No on the chart, Default or omitted = 1. The series No is the number shown at the end of the Formula Bar when a series is selected
eg: =SERIES(“My Data”,Sheet1!$B$2:$B$41,Sheet1!$C$2:$C$41,1)
Trendline No: Trendline No is optional and is the Trendline No of the Trendline you wish to track. Default or omitted = 1.
[Option Parameters, Default = 1]
Eg: = TrendY(20) will place the value of X=20 into the Trendline Equation of the Trendline of Chart 1 Series 1 Trendline 1
= TrendY(40,1,3,2) will place the value of X=20 into the Trendline Equation of the Trendline of Chart 1 Series 3 Trendline 2
=TrendY(B43,,3) will place the value of cell B43 into the Trendline Equation of the Trendline of Chart 1 Series 3 Trendline 1. Chart and Trendline both default to 1 as they are omitted.
The function works with all the Trendline types and variants of those, except the Moving Average.
To use the Trendy UDF copy the following code to a VBA Module or alternatively import the Txt File as a new Module
The code is also available in the Example Workbook with a fully working m0del.
If you don’t have the Trendlines equation shown it will do that for you and it ignores the R^2 function if shown.
The Trendlines equation box is actually where the function gets the equation from in the first place.
Then on a worksheet simply use then =Trendy(X Value) as described above.
Trendy has only been tested on Excel 2007 and 2010, use on other versions at your own risk.
Limitations
The Trendy UDF is limited to use the available precision of the parameters, for each equation, as displayed in the Equation Text Box on the Chart.
In some cases especially when multiplying by powers of large numbers and especially in the Polynomial equations, there may be a large discrepancy between the calculated value by Trendy and the displayed value by the Trendline on the Chart. In these cases the Trendline is correct. This will show on the chart as the Plot Y value of Trendy not being on the Excel calculated Trendline.
Trendy has 2 constants at the top of the UDF that are used for the calculation of Intermediate Equations. These are equations that the user doesn’t see but are done at a much higher level of precision to avoid these errors. These constants are:
Const DataLabelNoFormat = “#,##0.0000”
Const PolynomialNoFormat = “#,##0.000000000000”
If you have rounding errors the easiest way to fix them is to increase the number of decimals by increasing the number of zeroes after the decimal in the appropriate line, remembering that Excel only carries 15 decimal places anyway and Trendy is already using 12 for Polynomial Trends already.
Trendy returns the displayed equations to 4 decimals after the intermediate calculations in any case.
Further Readings
All Examples from the Are You Trendy? Series in one Workbook
Final
I hope you have enjoyed this 3 part series on Trend Analysis and Forecasting using Excel.
It has been put together to Introduce you to, and whet your appetite to, some of the functions, tools and techniques that you may not have had a lot of exposure to in the area of Trend Analysis and Forecasting using Excel.
I’d like to thank Chandoo for the opportunity to look after Chandoo.org for the past week and the opportunity to put the 4 posts up.
I will now hand Chandoo back the keys to the blog, hopefully without any dents.
Let me know what you thought of the series in the comments below:
Keep us informed on How you go with real data once you start applying some of these techniques.
Hui…
ps: I still don’t know if Trevian3969 was happy with my response to his post as he never responded ?
129 Responses to “Write a formula to check few cells have same value [homework]”
=NOT(STDEV(A1:A4))
this also works for large ranges of numerical values (but not for text)
@Arie
Nice formula Arie
Except that it doesn't work for Text values
I'll submit
=COUNTIF(A1:A4,A1)=COUNTA(A1:A4)
which works for Numbers and Text
and answers the two bonus questions as well
This is waaay more elegant than my solution. Nice one :).
I had =NOT(COUNTIF(A1:A4,A1:A4)-COUNTA(A1:A4)), somehow I keep forgetting we can use more than one "=" sign on a given formula :-/
Hi
Works for numbers, text and logical values on a range from A1:An.
=COUNTIF(A1:An,A1)=ROWS(A1:An)
well if you name the range, you could use following:
=IF(SUMPRODUCT(1/COUNTIF('range','range'))=1,1,0)
Hello lockdalf
The IF()-part is not necessary.
=SUMPRODUCT(1/COUNTIF(‘range’,'range’))=1
Not Working for =IF(SUM($C$1:$F$1)=0,"",SUM($C$1:$F$1)) in cell A1 to A4
My solution is a, perhaphs slightly complex, array formula as follows:
{=IFERROR(AVERAGE(IF(ISBLANK(A1:H1),9999,SUBSTITUTE(A1:H1,A1,9999)*1))=9999,FALSE)}
Assuming there is a value (numerical, text, logic etc) in cell A1, this formula will work - and it will 'ignore' any cells that are 'blank' within the range A1:H1 (which can be extended to the required size).
Breaking the formula down, the SUBSTITUTE(A1:H1,A1,9999) replaces all values (be it text / numerical) in the range A1:H1 that MATCH the value of cell A1 with the number 9999 (this should be changed to any number that WON'T APPEAR IN THE RANGE).
These values are then multiplied by 1 (as SUBSTITUTE results in a text answer).
Wrapping this in an IF(ISBLANK(A1:H1),9999,.........) formula takes care of any blank cells, setting them to this default value of 9999 also - this allows you to set the formula up once for a large range and then not have to alter as more data comes in.
An Average is then taken of all these values - if all cells that contain values are the same, the average will come back to 9999.
If all values are numerical but some differ, the average will differ from 9999 and will result in a FALSE answer. If some / all of the values are text and some differ from that in cell A1, the AVERAGE function will result in an Error, but in these instances the Match needs to return FALSE, hence the IFERROR function.
Sure there's a simpler way to do this though!!
`{=IF(AND(COUNTA(RANGE)-SUM(--ISNUMBER(FIND(UPPER(FIRST ELEMENT IN RANGE),UPPER(RANGE))))=0,LEN(FIRST ELEMENT IN RANGE)=MAX(LEN(RANGE))),TRUE,FALSE)}`
so if your data was in Column 1 and began in A1, you'd use
`{=IF(AND(COUNTA($1:$1)-SUM(--ISNUMBER(FIND(UPPER($A$1),UPPER($1:$1))))=0,LEN($A$1)=MAX(LEN($1:$1))),TRUE,FALSE)}`
This will work for strings and things, if you want it to be case sensitive (I don't), just remove the UPPER() part.
What this does:
`COUNTA($1:$1)`
tells you how many entries you're looking at over your range (so we can work with an undetermined size).
`--ISNUMBER()`
ISNUMBER will return TRUE or FALSE depending on if the value inside is a number or not. the -- part converts TRUE/FALSE in to 1 or 0.
`UPPER()` OPTIONAL
converts the value in to upper case. If passed a number it changes it to text format. This is what stops it from being case sensitive.
`FIND($A$1,$1:$1)`
will return a number if A1 is contained in each cell containing an entry in column 1.
`LEN($A$1)=MAX(LEN($1:$1)`
checks that all elements are the same length. This is needed to avoid partial matches (without it, if A1 contained zzz and A2 contained azzza it would flag as true).
REMEMBER this is an array formula, so enter with ctrl+shift+enter.
{=MIN(--(A1=OFFSET(A1,,,COUNTA(A1:A4))))}
Gives 0 if false and 1 if true
=COUNTIF(A:A,A1)/COUNTA(A:A) = 1
This meets both bonus requirements and is dynamic. Keep adding more contents in column A and it will include these automatically.
I like this a one a lot. I would make one small change by inserting a table for my data range. Makes it dynamic without selecting the whole column
=IF(COUNTIF(tableName[colName],A2)/COUNTA(tableName[colName])=1,TRUE,FALSE)
For only Numeric values
=MAX(A:A)=MIN(A:A)
Awesome!
=(A1=B1)*(B1=C1)*(C1=D1)
Case sensitive.
=SUMPRODUCT(0+EXACT(A1:A4,A1))=COUNTA(A1:A4)
Regards
I'd use this
=COUNTIF(range,INDEX(range,MODE(MATCH(range,range,0))))=COUNTA(range)
It takes Hui's formula but ensures that the test value for the countif is the value or string that is most common in the range. Just in case you get a false but the problem is just with your test value being the odd one out.
=SE(E(A1=A2;A1=A3);SE(E(A1=A4;A2=A3);SE(E(A2=A4;A3=A4);"ok")))
SE = IF
E = AND
Seems you could shorten it with
=AND(A1=A2,A1=A3,A1=A4)
Bonus question 1 & 2
Array formula: {AND(A1=A1:AN)}
This will test all cells in range, including text and numbers.
Cheers
A very simple solution uses Excel's Rank function. Insert in B1 = Rank(A1, $A$1:$A$4). Copy down this formula to B4. If the answers in B1 thru B4 are all 1, the values are equal. For an open range of cells, label the range of input (example "TestData") and place the label in the funtion (= Rank(A1, TestData) then copy down to an equivelent length of rows as the range.
=IF(SUM(A1:A4)/COUNT(A1:A4)=A1,TRUE,FALSE)
=IF(SUM(A1:D1)/4=A1,"True","False")
I enjoy your emails. I have learned a lot from them. Thank you for what you do.
.
{=PRODUCT(--(A1=A1:A4))}
.
Change A4 to An.
Greate
{=PRODUCT(- -(A1=A1:A4))}
=IF((SUM(A1:A4)/COUNT(A1:A4))=A1,"TRUE","FALSE")
I would use the formula which is mentioned below:-
=IF(PRODUCT($A:$A)=A1^(COUNTIF($A:$A,A1)),"Yes","No")
At last a homework assignment that I could answer on my own. And I even understand some of the elegant answers from other readers this time.
My solution was to nest IF statements:
=IF(A4=A3,IF(A3=A2,IF(A2=A1,TRUE,FALSE),FALSE),FALSE)
This satisfies bonus question 2 but I think the structure makes it impossible to modify this solution to satisfy bonus question 1. And I wouldn't want to use this strategy to compare very many values...
This answers all of your questions:
=PRODUCT(--(INDIRECT("$A$1:$A$"&$B$1)=$A$1))
where column A contains the values and $B$1 has the number of rows to assign to last A-cell.
Sorry, forgot the braces:
{=PRODUCT(–(INDIRECT(“$A$1:$A$”&$B$1)=$A$1))}
=IF(A1=A2:A2=A3:A3=A4>1,"TRUE","FALSE")
=IF(A1=A2:A2=A3:A3=An>1,"TRUE","FALSE")
=SUM(HELLO, A1)
{=IF(SUM(IF(A1:A4=A1,0,1))=0,TRUE,FALSE)}
This will work for numbers or text, and will work for any number of cells (A4 would just be An)
Here's another alternate, assuming values in cells a1:d1
=IF((A1*B1*C1*D1)^(1/COUNT(A1:D1))=AVERAGE(A1:D1),1,0)
{=IF(AND($A$1:$A$4=OFFSET(A1,0,0)),1,0)}
=SUM(IF(FREQUENCY(MATCH(A1:A4,A1:A4,0),MATCH(A1:A4,A1:A4,0))>0,1))
REVISED FORMULA
=IF((A1=A2)*AND(A1=A3)*AND(A1=A4),"TRUE","FALSE")
Regards
=IF(SUMPRODUCT(--(A2:A5=A2))/COUNTA(A2:A5)=1,1,0)
- should be --
I would use something like this: =COUNTA(A1:A4)=COUNTIF(A1:A4,A1)
You can even do a whole range and as you enter data into the range it tells you if they all match. Going down to row 5000: =COUNTA(A1:A5000)=COUNTIF(A1:A5000,A1).
Thanks,
B
Just saw Hui response. I really did come up with this and didn't just copy his.
{=SUM(--(A1:A101=A1))=(COUNTA(A1:A10)+COUNTBLANK(A1:A10))}
For numeric values:
=(OFFSET(list,,,1,1)=AVERAGE(list))
where list = A1:A4
I need to retract my own post here guys.
It is WRONG! Let me explain.
Suppose we have
A1 = 1
A2 = 0
A3 = 2
then Average = 1 and OFFSET(list,,,1,1) = 1
so 1 = 1 but all the elements are NOT equal.
correction
{=SUM(--(A1:A10=A1))=(COUNTA(A1:A10)+COUNTBLANK(A1:A10))}
=IF(A1=B1,IF(B1=C1,IF(C1=D1,TRUE,FALSE),FALSE),FALSE) ....
=COUNTIF(OFFSET($A$1,0,0,COUNTA($A:$A),1),$A$1)=ROWS(OFFSET($A$1,0,0,COUNTA($A:$A),1))
I have a little more flexible approach. Suppose the value of 'n' is known. There is a possibility that only some of the cells in a row are filled up. For example if n = 10, then in a row, A1 to A10 must be compared. But in case only cells upto A7 are filled up. The formula thus has to adapt accordingly. Below formula does that:
=COUNTIF(INDIRECT(ADDRESS(ROW(),1)&":"&ADDRESS(ROW(),COUNTA(A1:J1))),A1)=COUNTA(INDIRECT(ADDRESS(ROW(),1)&":"&ADDRESS(ROW(),COUNTA(A1:J1))))
In A1:A100 is word/number
In B1 is word/number we look
C1=MAX(FREQUENCY(IF(A1:A100=B1,ROW(A1:A100)),IF(A1:A100<>B1,ROW(A1:A100)))) array formula
We can use an array formula
{=PRODUCT(--(A1:An=A1))}
OR if we want n variable
{=PRODUCT(--(INDIRECT("A1:A"&COUNTA(A:A))=A1))}
Just as an add on...
The range could be 2D as well
{=PRODUCT(–(A1:Zn=A1))}
{=AND(A1=A2:An)}
I would use this one (simlpe)
=(COUNTA(A:A)=COUNTIF(A:A;A1))
try this
=MAX(A1:A4)=MIN(A1:A4)
Olso try this
{=SUM(RANK(A1:A10,A1:A10))=COUNT(A1:A10)}
Please notice it is an Array Formula
Dear All,
i used that formula
{=IF(COUNTIF(A1:A4,A1:A4)=COUNTA(A1:A4),TRUE,FALSE)}
Love the variety of responses.
=MAX(A1:A4)=MIN(A1:A4)
and
=COUNTA(A1:A4)=COUNTIF(A1:A4,A1)
will return true if the input range has blank cells
My personal fave is the array formula {=AND(A1=A1:A4)}. Short and sweet, and easy to read. Blank cells will tally as a mismatch.
A close second is
=SUMPRODUCT(1/COUNTIF(A1:A4,A1:A4))=1
which will throw an error if blanks are present.
=PRODUCT(B1:D1)=B1^COUNT(B1:D1)...will return TRUE or FALSE
Dear Sir,
My answer is =exact(a2,a1)
=IF((a1=a2=a3=a4),1,0)
4 equal values gives me a 0 ???
Hello Chandoo,
We can also use Conditional Formatting......
For Numerics..
=SUM(A1:AN)/A1=COUNT(A1:AN)
results in True/False.
=AND(IF(A1=B1,1,0),IF(B1=C1,1,0),IF(C1=D1,1,0))
=AND(A1=A2:A4) array entered
Generic
=AND(A1=A2:An) array entered
=--(COUNTIF(A1:A4,A1)=COUNTA(A1:A4))
will give value as 1 or 0
Hi there, here's a simple formula to determine not only whether all 4 cells (A1 --> A4) are equal, but also whether any of the cells are equal and identifies which cells they are ...
=COUNTIF($A$1:$A$4,A$1)*1000+COUNTIF($A$1:$A$4,A$2)*100+COUNTIF($A$1:$A$4,A$3)*10+COUNTIF($A$1:$A$4,A$4)*1
A result of 1111 means no cells are equal, 4444 means all cells are equal, 1212 would mean there are 2 cells the same & they are in A2 & A4, etc
=((A1=B1)+(A1=C1)+(A1=D1))=3
Obviously doesn't cover bonus question 1, but does so for q2 🙂
If formula
=MIN(A1:A4)=MAX(A1:A4)
Try this formula
=IF(COUNTIF(A1:A4,A1)-ROWS(A1:A4)=0,"True","Flase")
I used the Swiss knife of excel: SUMPRODUCT, works for numeric as well as for non-numeric cell content and A1:A4 is obviously easily changed to any range.
=IF(SUMPRODUCT(--(OFFSET($A$1:$A$4,0,0,ROWS($A$1:$A$4)-1,1)=OFFSET($A$1:$A$4,1,0,ROWS($A$1:$A$4)-1,1)))=ROWS($A$1:$A$4)-1,TRUE(),FALSE())
All of the individual non-array formulas (didn't test the array ones) have one flaw or another - mostly specifically if all the columns are blank, the result would still be false.
Another formula in the comments worked for these but didn't work for when all columns had "0.00" in them. My solution was to OR the two. If H3 through H149 have your values, then this is what worked for me:
=IF(OR(COUNTIF(H3:H149,H3)=COUNTA(H3:H149),SUMIFS(H3:H149,H3:H149,1)=COUNT(H3:H149)),IF(H3="","Blank",H3),"")
This solution puts "Blank" if all the rows are blank, otherwise, it puts whatever the value that's in all of the rows - "0.00" or whatever.
Thanks for all the answers!
I used a nested if statement which also showed, via the false message, the first instance of cells which were not equal for the cells a1 to a5.
=IF(A1=A2, IF(A2=A3, IF(A3=A4, IF(A4 = A5, "True","False A4"), "False A3"), "False A2"))
Hi,
First, let me begin by saying, I am a big fan of all your posts and read your emails, mostly on the same day as you send them. I have not replied as much as I wanted to.
This is my first attempt at answering a question on your post
I came up with a simple check which will test if all values in a range A1:An are same or not
Assuming range you want to check is A1:A10,
In Cell B1, insert the formula
=IF(COUNTIFS(A1:A10,A1)=COUNTA(A1:A10),"All cells are same","All cells are not same")
The idea I applied is counting total number of non-blank cells and then counting the number of cells which match cell A1. If these are same, then it means
a) all cells have the same value! (All can be blank, then both counts will be zero)
I am working on finding the range automatically 🙂
Can extend this into VBA and use InputBox etc to generate some user interaction
Thanks
Shailesh
=IF(COUNTIF(A1:A4,A1)=COUNT(A1:A4),TRUE,FALSE)
For homework & Bonus Question 3
=IF(AND(A1=A2,A2=A3,A3=A4),1,0)
=IF(SUMIFS(A12:A15,A12:A15,1)=COUNT(A12:A15),1,0)
One possible solution could be =+IF(COUNTIF(A1:A4,A1)-COUNT(A1:A4)=0,1,0)
where A1:A4 is data range which can be a dynamic range and the formula can be modified accordingly.
Rgds,
Sanjeev Sawal
I got the right result with this one:
=IF(A1=B1;IF(C1=D1;IF(B1=C1;1;0);0);0)
=and(a1=a2,a1=a2,a1=a3)
ANSWER FOR bONUS 1
=MAX(A1:A10)-MIN(A1:A10)
=AND(A1:A3=A2:A4)..Confirm with Ctrl+Shift+Enter (As as array formula). Works well for Text values and large range of values as well.
suppose cells contain 2 values ==== Yes | no
formula :
1
=counta(a1:a4)=countif(a1:a4,"yes")
It will return True or False.
2
=IF((COUNTA(A1:A4)=COUNTIF(A1:A4,"yes")),"Same value","Mis-match")
it will return Same Value OR Mis-match.
Hope you like it.
Regards
Istiyak
Also can use this formula
=IF(AND(A1=A2,A1=A3,A1=A4),"1","0")
Let say the values are in the range $B$1:$E$1, then the formula is:
If(sumproduct(--($B$1:$E$1=$B$1))=CountA($B$1:$E$1);1;0)
Please check that:
* $B$1 was used as pivot value and could be randomly selected
* It works well if parenthesis is omitted for values "1" and "0"
* This formula applies also to "n-values" and non-numeric values (text, logical, etc.)
Regards,
A
This formula is equivalent to
If(CountIF($B$1:$E$1,$B$1)=CountA($B$1:$E$1),1,0) mentioned before...
Hi, first time trying to solve a probleme.
New at this but really enjoying Chardoo.org
Think the following will work in all 3 questions
{=IF(SUM(IF(A1=$A:$A,1,0))=COUNTA($A:$A),TRUE,FALSE)}
Regards
Jorrie
use below formula for to get True / False
=COUNTA(A1:A4)=COUNT(A1:A4)
and use below formula for to get {1/0} or {match / Mismatch}
=IF(COUNTA(A1:A4)=COUNT(A1:A4),{1,0} or {match,Mismatch})
=IF(COUNTA(A1:A4)=COUNT(A1:A4),1,0) or =IF(COUNTA(A1:A4)=COUNT(A1:A4),"Match","Mismatch")
[...] Last week in Write a formula to check few cells have same value [Homework], [...]
Hi, sorry if it's repeated, this array formula works well with numbers or text, the range can easily be dynamic: {=AND(A1:An=A1)} Now, after three days, I understand a lot more about array formulae, thanks?
=IF(AND(A1=A2,A2=A3,A3=A4),"TRUE","FALSE")
What if there are not only four cells to compare but An?
how will I determine if there is one cell that is not equal from any other cells?
=IF(COUNTA(A1:A4)=COUNT(A1:A4),1,0)
=IF(COUNTA(A1:A4)=COUNT(A1:A4),”Match”,”Mismatch”)+
=IF(AND(A1=A2,A2=A3,A3=A4),”TRUE”,”FALSE”)
=iF(AND(EXACT(C15,D15),EXACT(E15,F15)),"Match","Mis-match")
how this formula works in excel (B4+E4)/50*20
I'm a little late to the party, but I figured I'd post anyways.
For numbers only:
=NOT(VAR.P(A1:An))
The formula given below will fulfill the all criteria including bonus questions
=IF(COUNTA(A:A)=COUNTIF(A:A,A1),"True","False")
REGARDS
=IF(MATCH(A1,A2:A4,0),TRUE,FALSE)
=IF(COUNTIF($A$1:$A$4,A1)>1,"true","false")
=IF(COUNTIF(A:A,A1)>1,"true","false")
@Naveen
You can simplify your formulas as below:
=COUNTIF($A$1:$A$4,A1)>1
=COUNTIF(A:A,A1)>1
Excel will return True or False without the need for the If() function
Hi ,
This question is similar to the one in the post.
I have Text values in cell A1 and A2.
If A1 = A2, update 10 in cell A3 , else 0.
Is there any formula for this. I am new to VB and hence do not have much knowledge. Eager to learn!!
Thanks in advance !!!
=AND(A1=A2,A1=A3,A1=A4)
also =IF(AND(A1:A4=A1),TRUE,FALSE)
my question is
finding the total of values in cell A1,A2,A3,A4,andA5
@Norine
Is it as simple as =Sum(A1:A5)
One can use "IF, AND" formula.
=IF(AND(A1=A2,A2=A3,A3=A1),"True","False")
=COUNTIF(A:A,A1)=COUNTA(A:A)
Enter array formula like, = IF($B$16:$B$21=$B$17:$B$22,"Yes","No")
Sorry, Enter a array formula like this: =IF(AND($B$16:$B$21=$B$17:$B$22),"Yes","No")
=IF(AND($E$5=$E$6,$E$6=$E$7,$E$7=$E$8),"true","flase")
it can work try this one
A question for you
sheet 1 table A1:C10
What formula in sheet 2 A1 will give me what is entered in the table sheet 1 A1:C10
There is usually only one entry made in the table but if you can supply the answer to 1 or 2 entries I would be grateful
=max(A:A)=min(A:A)
FOR TEXT DATA
=COUNTIF(A1:A5,a1)=COUNTIF(A1:A5,"*?")
FOR VALUE DATA
=COUNTIF(A1:A5,A1)=COUNTA(A1:A5)
Both Return TRUE or FALSE
=if({sum(1/countif($A$1:$A$n,A1:An)}=1,"All Same","Not All Same")
I use formula A1=B1 and get value of TRUE / FALSE in C1. I had dragged this formula for 10 rows. Now in cell D2 i tried to put formula..
=if(and(c1="False", c2="true"), "conflict", "no conflict")
but even when the condition is true i am still getting no conflict.
Can you please advice?
thanks,
Manish
@Manish
Remove the " from around True and False
=if(and(c1=False, c2=True), "conflict", "no conflict")
In C1 and C2 you have a Boolean expression and it evaluates as True/False
These are not text, although they do appear as Text, they are not 1/0 although they sometimes behave as 1/0, they are in fact Boolean values True/False
So in your example you can simplify it as
=If( And( Not(C1), C2), "conflict", "no conflict")
=SUMPRODUCT(MATCH(A1:A4,A1:A4,0))=COUNTIF(A1:A4,A1)
Answer to both bonus questions 2 and 3:
=COUNTIF(A1:An,A1)=COUNT(A1:An)
answer to all questions:
={IF(ISERROR(MATCH(FALSE,((A1:An)=$A$1),0)),"same","different")}
this works with numeric, non-numeric, and blanks:
COUNT will not count numeric
COUNTA will count blanks as one
=SUMPRODUCT(1/COUNTIF(B1:J1,B1:J1))
This will tell you how many unique values exist in the selected range. Text or numeric mixed.
{=IF(AND(A1:A9=A2:A10),"EQUAL","NOT EQUAL")}
this is an array formula, insert it with CSE.
COUNTA/UNIQUE
=SUMPRODUCT(A:A)/A1=COUNT(A:A)
=COUNTIF(A1:A4,A1) = COUNTA(A1:A4)