I have a requirement where I have a column Production Period of type "String" which has Year and Months data as seen below:I need to see last 6 months record in line chart. Can I limit it irrespective of any data.
Production Period
1801
1802
1803
1804
1810
1811
1812
1901
I tried with following expression. String("1807") <= [Production Period] and [Production Period] <= String("1901")
But I need not specify any value as my data would keep piling.I want Production period to display last 6 months data.
I would suggest to convert your data to dates, and use a date difference. This can either be done as calculated columns, or expressed directly in your chart. To create date from your year-month format, the following can be used:
Date(
Integer(Concatenate("20", Left(String([Production Period]),2))),
Integer(Right(String([Production Period]),2)),
1
)
This will create a Date from your current data (given that your column is named 'Production Period').
To get the last 6 months in your chart, you would formulate your limiting expression using a date difference:
[Date] >= DateAdd('month', -6, DateTimeNow())
[Date] in this expression refers to the previously calculated date value.
Related
I have looked into the Forcast & Trend formula but I cannot figure it out for the life of me.
I want to work out the trend 14 days from now.
I have a set of data:
A1 - A30 with dates
B1 - B30 with daily ticket count for the business.
I would like to make a result in another cell that would predict what the estimated total ticket count would be 14 days from now. I do not need all 14 days, just the 14th day.
If I was to try show you what the formula looks like in my head it would be:
=trend/forecast(B1:B30,14)
or
=Predict(B1:B30)*14
Unfortunately it is not as easy as that. How can I do this?
I think you want to use the Forecast function. The inputs you have do not match the correct format though.
FORECAST( x, known y's, known x's) where...
x = the series (or date) you want to forecast
known y's = historical tickets per day
known x's = historical dates (or series)
The below example allows you to forecast tickets for any date (Forecasted Date) given the historical information (table on left). If your table is not formatted with actual dates, just create a series (first day = 1, second day = 2, etc.) and forecast that way.
Given the historical data, the forecasted tickets for Aug 28th (14 days after last known value) are 16.7
I have END_Date data like 43830.99931. When I paste it in the excel and format the cell to Date. It convert it to 12/31/2019 11:59:00 PM. I want same functionality in T-SQL. How can I achieve same result using T-SQL?
Excel (by default) uses the 1900 date system. This simply means that the date 1 Jan 1900 has a true numeric value of 1, 2 Jan 1900 has a value of 2 etc. These values are called "serial values" in Excel and it is these serial values that allows us to use dates in calculations.
The code to convert:
DECLARE #SerialDate FLOAT;
SET #SerialDate = 43830.99931;
SELECT CAST(#SerialDate - 2 AS DATETIME);
returning back the date time value of:
2019-12-31 23:59:00.383
You may have noticed the -2 in the cast. That's because Excel, due to issues with 29th Feb 1900 and the inclusiveness of the start/end dates. (1900-01-01 is day 1 not day 0, and 1900 was not a leap year but excel calculates it wrongly) we have to subtract 2. Details on that issue can be found here.
I’m trying to compare a measure as of today through the same day and month for the prior 4 years (e.g. through June 6 of 2016, 2015, 2014, etc.).
For each year, I decided to count the number of days since the beginning of the year, and sum my values through that number of days for each year.
To identify whether a date should be included in the year to date comparison, I used the formula where my date is in cell A1:
=IF((A1-DATE(YEAR(A1),1,1)+1)<=(TODAY()-DATE(YEAR(TODAY()),1,1)+1),1,0)
I’m looking for a way around the issue of the extra day added to leap years. In other words, after February 28th, the day count will always be off by one in a leap year, and trying to use Februrary 29th in a non-leap year will return an error.
I’d like to adjust this formula, but I’m open to using a different function & formula if it gets me the right results.
you can check any information about February, 29th. If an error occurs, you know its no leap year. Catch that error with =IFERROR(;).
Assuming a table structure like this:
A:Date | B:Value
----------------------
01/01/2016 | 0
01/01/2015 | 1
01/01/2014 | 2
01/01/2013 | 3
01/01/2012 | 4
Formula
To - for example - calculate the average of the previous four (excluding the current) years on January 1st (today is 01/01/2016):
=SUMPRODUCT(
(MONTH(A:A)=MONTH(compare))*
(DAY(A:A)=DAY(compare))*
(YEAR(A:A)>YEAR(compare)-5)*
(YEAR(A:A)<YEAR(compare))*
(B:B)
) / (
SUMPRODUCT(
(MONTH(A:A)=MONTH(compare))*
(DAY(A:A)=DAY(compare))*
(YEAR(A:A)>YEAR(compare)-5)*
(YEAR(A:A)<YEAR(compare))*
1
)
)
Result
For the above example, the result is 2.5
Explanation
To select only those rows representing the same month and day:
(MONTH(A:A)=MONTH(compare))*(DAY(A:A)=DAY(compare))
To select only those values from the previous 4 years (excluding the current):
(YEAR(A:A)>YEAR(compare)-5)*(YEAR(A:A)<YEAR(compare))*
The actual values we are interested in:
(B:B)
Divide by 4 for the average over the last four years. This assumes there is no missing data which might be an issue. You could use another SUMPRODUCT (replace B:B with 1) to count the number of resulting rows and divide by that number to handles this case. This seems to be rather slow, but it works.
Note
For performance reason you should not use A:A (a full column) in the formula, just use the actual range you need, which will likely be much faster.
Ive spent the last 2 days trying to get this, and I really just need a few pointers. Im using Excel 2010 w/ Power Pivot and calculating inventories. I am trying to get the amount sold between 2 dates. I recorded the quantity on hand if the item was in stock.
Item # Day Date Qty
Black Thursday 11/6/2014 2
Blue Thursday 11/6/2014 3
Green Thursday 11/6/2014 3
Black Friday 11/7/2014 2
Green Friday 11/7/2014 2
Black Monday 11/10/2014 3
Blue Monday 11/10/2014 4
Green Monday 11/10/2014 3
Is there a way to do this in dax? I may have to go back and calculate the differences for each record in excel, but Id like to avoid that if possible.
Somethings that have made this hard for me.
1) I only record the inventory Mon-Fri. I am not sure this will always be the case so i'd like to avoid a dependency on this being only weekdays.
2) When there is none in stock, I dont have a record for that day
Ive tried, CALCULATE with dateadd and it gave me results nearly right, but it ended up filtering out some of the results. Really was odd, but almost right.
Any Help is appreciated.
Bryan, this may not totally answer your question as there are a couple of things that aren't totally clear to me but it should give you a start and I'm happy to expand my answer if you provide further info.
One 'pattern' you can use involves the TOPN function which when used with the parameter n=1 can return the earliest or latest value from a table that it sorts by dates and can be filtered to be earlier/later than dates specified.
For this example I am using a 'disconnected' date table from which the user would select the two dates required in a slicer or report filter:
=
CALCULATE (
SUM ( inventory[Qty] ),
TOPN (
1,
FILTER ( inventory, inventory[Date] <= MAX ( dates[Date] ) ),
inventory[Date],
0
)
)
In this case the TOPN returns a single row table of the latest date earlier than or equal to the latest date provided. The 1st argument in the TOPN specifies the number of rows, the second the table to use, the 3rd the column to sort on and the 4th says to sort descending.
From here it is straightforward to adapt this for a second measure that finds the value for the latest date before or equal to the earliest date selected (i.e. swap MIN for MAX in MAX(dates[Date])).
Hope this helps.
Jacob
*prettified using daxformatter.com
i want to find the earliest date between the DOB OF FATHER & DOB OF MOTHER in sheet1, by matching the employee code and having the value in earliest date in sheet 2.
Sheet 1
Employee Code DOB OF FATHER DOB OF MOTHER
28883 29/12/1987 28/01/1988
83933 19/11/1988 12/07/1988
55428 21/01/1938 03/10/1938
99999 18/03/1982 11/02/1980
Sheet 2
Employee Code Earliest Date
28883
99999
83933
55428
Sheet1:
A B C
1 Code FatherDOB MotherDOB
2 28883 29/12/1987 28/01/1988
3 83933 19/11/1988 12/07/1988
4 55428 21/01/1938 03/10/1938
5 99999 18/03/1982 11/02/1980
Sheet2:
A B
1 Code EarliestDOB
2 28883 29/12/1987
3 99999 11/02/1980
4 83933 12/07/1988
5 55428 21/01/1938
You can combine two vlookup operations with a min operation:
=MIN(VLOOKUP(A2,Sheet1!$A$2:$C$5,2,FALSE),VLOOKUP(A2,Sheet1!$A$2:$C$5,3,FALSE))
The first vlookup gives you the father's date of birth (using the entire table range but extracting the second column) and the second gives you the mother's date of birth (extracting the third column).
The earliest is then simply the minimum of the two.
If some of the dates may be blank, the easiest solution is probably to set up a D column on sheet 1 to evaluate the earliest date, ignoring blanks. For example D2 would have (split across lines for readability):
=IF(ISBLANK(B2),
B3,
IF(ISBLANK(C2),
B2,
MIN(VLOOKUP(A2,$A$2:$C$5,2,FALSE),
VLOOKUP(A2,$A$2:$C$5,3,FALSE))))
If one of the cells is blank, it uses the other, otherwise it chooses the earliest.
Then you just lookup that new column D in the formula on sheet 2 (example for B2):
=VLOOKUP(A2,Sheet1!$A$2:$D$5,4,FALSE)
I wanted to point out a limitation that has been in Excel forever.
Excel internally doesn't handle dates before 3/1/1900 (March 1, 1900) correctly.
it thinks that 1900 was a leap year
that the day before 3/1/1900 is 2/29/1900
if you enter pass Excel through automation any date between 12/31/1899 and 2/28/1899, it will think it is 1/1/1900 - 2/29/1900
if you attempt to pass it through automation 12/30/1899, it will think it is January 0, 1899.
if you attempt to pass it any date before 12/30/1899, it will throw an error
Various example dates that you can pass to Excel through automation:
Date Excel
-------- ------------------------------
18651001 throws error going into Excel
18991201 throws error going into Excel
18991229 throws error going into Excel
18991230 shows as "12:00:00" in Excel; it refuses to show a date portion
18991231 shows in Excel as 1/1/1900
19000101 shows in Excel as 1/2/1900
19000102 shows in Excel as 1/3/1900
19000103 shows in Excel as 1/4/1900
19000201 shows in Excel as 2/2/1900
19000228 shows in Excel as 2/29/1900
19000229 Feb 29 1900 was not a real date; Excel takes it
19000301 shows in Excel as 3/1/1900
19000601 shows in Excel as 6/1/1900
19001231 shows in Excel as 12/31/1900
19010101 shows in Excel as 1/1/1901
20151128 shows in Excel as 11/28/2015
The VARIANT structure does dictate that a date must be after December 30, 1899 midnight as time zero:
2.2.25 DATE
DATE is a type that specifies date and time information. It is represented as an 8-byte floating-point number.
This type is declared as follows:
typedef double DATE;
The date information is represented by whole-number increments, starting with December 30, 1899 midnight as time zero. The time information is represented by the fraction of a day since the preceding midnight. For example, 6:00 A.M. on January 4, 1900 would be represented by the value 5.25 (5 and 1/4 of a day past December 30, 1899).
tl;dr: If you have any dates in Excel before March 1 1900 (e.g. the birthdate of the oldest woman alive), Excel will not perform the math correctly.
If you wish to display any date before 3/1/1900, it should be presented as text, rather than an actual date.
Anyone attempting to find the minimum date in a range needs to be aware of this limitation in Excel.