Control which rows a data table will calculate - excel

I have a 2-way data table in Excel (as in the option under "What-If Analysis"). There are 50 rows when analysing a 50 year deal, but only 4 rows when analysing a 4 year deal.
I only want to use one data table (of 50 rows) but I don't want it to calculate all of the values if it doesn't have to. e.g. if I have a five year deal I want the values in the first 5 rows to be calculated, but for the rest I would like it to display 0 or a blank.
Is there a way to do this without VBA?
(I was thinking with VBA I could create a whole new data table every time I run it, but would prefer not to as I am still developing structures.)


I'm guessing that either your row labels will step consistently. Just blank out the years that are not required, when not required (rows 6 and upwards in your example for 5 years), and repopulate with series fill to suit.

Related

Excel - Charts with varying number of rows

I have an existing spreadsheet and macro process I'm trying to improve, and I have multiple tables which refresh for each client, and can have between 3 and 6 rows of data (depending on whether someone has enough history to fill all 6 rows). There is a chart attached to the table which works fine when all 6 are there, but when there are fewer rows, the chart leaves a blank space on the X-axis to account for that table row.
Example of the table when full
Quarter Value
2021Q1 10
2021Q2 7
2021Q3 4
2021Q4 2
2022Q1 1
2022Q2 0
Example of the table when less than full
Quarter Value
2021Q3 4
2021Q4 2
2022Q1 1
2022Q2 0
On the second table, there will be places on the X-axis for values, rather than knowing there's no data and only showing 4 places
Is it possible for excel charts to refresh dynamically depending on what is in the source? I have found plenty of guides for what to do with the chart lines when there is no value, but not to ignore a whole row from the report.

Averaging specific range of data with loop in excel vba

I have a temperature data taken in every second (1Hz).
I want to reduce this data to minutes combined with averaging every 60 seconds of data. Which will be look like this.
I have tried moving average and other things but it didn't work. Is there any VBA code that i can approach my goal or any spesific function.
My time data range is [A3] - [A88739] and data range is [B3] to [B99739]
I will be waiting for your answers.
Thank you!

I think easier way would be using a helper column.
This will work only if your time data is always like the one you've posted and if the last 6 chars are .XXXXX where X can be letter or numbers, but leading dot is critical
My formula in column C is =VALUE(SUBSTITUTE(LEFT(A3;LEN(A3)-6);".";"/"))
Then with Pivot Table you can group your data by day,hour and minute, and get the average.
Setup of My Pivot Table:
Field Helper into rows section, and grouped by days, hours and minutes
Field Temp into values section, and choose average instead of sum up

Sort cells that have the same date but different time

I currently have a large data set sorted largest to smallest in terms of demand-(solar+wind) and I would like to choose the top 12 cells in terms of demand-(solar+wind) but occuring 12 different days.
This is the top of my spreadsheet.
Thus as the peak demand-(solar+wind)often occurs on the same days at different times I have to manually scroll through the large excel file to choose the top 12 that occur on different days.
What is a shortcut way to do this? I have thought of conditional formatting or the sort function but none of these have proven useful to me just yet.

Simply insert a new pivot table, select "Trading interval" as a rows field and demand-(solar+wind) as values. In your new pivot table right-click on the Trading interval field and select "Group" and "Days".

Distribution of time values randomly in a table Excel - Modeling Power Grid

I am working on a model of charging load of electric vehicle. I am attaching a link to an excel workbook for your better understanding.
Column B contains random time values
Column G to P represents houses and each house can have 1 car. So the each time values needs to be distributed in one column. Now when a car is plugged in, its load stays constant for 3 cells.
I want excel to randomly distribute these cars e.g. 4 cars to 4 houses and leave others blank.
what i can think of is, to assign each time a random house then use IF formula with AND function to match random times with time series and second condition to match random houses with columns 1-10.
the problem i am facing is, the formula gives a value error and only works in the rows with has random generated time in front of them screenshot. I know there is a very small thing that i am missing. please help me find it
Regards
workbook

=IF(ISNA(MATCH(G$5,$C$6:$C$9,FALSE)),"",IF(AND(INDEX($B$6:$B$9,MATCH(G$5,$C$6:$C$9,FALSE))>=$F6,INDEX($B$6:$B$9,MATCH(G$5,$C$6:$C$9,FALSE))<=$F6+TIME(0,30,0)),11,""))
The two elements in the AND find the house number in column C and return the corresponding time in column B.
The first element compares the time in F to that time. The second element compares the time + 30 minutes to F (three cells). If it's between those two times, it gets an 11.
The ISNA makes sure that the house in question is on the list. You could also use an IFERROR, but I prefer the precision of ISNA.
Update
If you want the values to wrap around, you need to OR compare to the next day.
=IF(ISNA(MATCH(G$5,$C$6:$C$9,FALSE)),"",IF(OR(AND(ROUND($F6,5)>=ROUND(INDEX($B$6:$B$9,MATCH(G$5,$C$6:$C$9,FALSE)),5),ROUND($F6,5)<=ROUND(INDEX($B$6:$B$9,MATCH(G$5,$C$6:$C$9,FALSE))+TIME(0,30,0),5)),AND(ROUND($F6+1,5)>=ROUND(INDEX($B$6:$B$9,MATCH(G$5,$C$6:$C$9,FALSE)),5),ROUND($F6+1,5)<=ROUND(INDEX($B$6:$B$9,MATCH(G$5,$C$6:$C$9,FALSE))+TIME(0,30,0),5))),11,""))
That formula structure looks like
=If(isna(),"",if(or(and(today,today),and(tomorrow,tomorrow)),11,"")
This formulas already getting too big. If you triple it for your three voltages, it will be huge. You should consider writing a UDF in VBA. It won't be as quick to calculate, but will probably be more maintainable.
If you want to stick with a formula, you could put the wattage in row 4 above the house number. Then in another table, list the wattages and minutes to charge. So in, say, B12:C14 you have
3.7 120
11 30
22 15
Now where you have 11 in your formula, you'd have G$4 and the two placed you have TIME(0,30,0), you'd have TIME(0,INDEX($C$12:$C$14,MATCH(G$4,$B$12:$B$14,FALSE)),0). I re-arranged some stuff to make it more 'readable' (but it's still pretty tough) and here's the final formula
=IF(ISNA(MATCH(G$5,$C$6:$C$9,FALSE)),"",IF(OR(AND(ROUND($F6,5)>=ROUND(INDEX($B$6:$B$9,MATCH(G$5,$C$6:$C$9,FALSE)),5),ROUND($F6,5)<=ROUND(INDEX($B$6:$B$9,MATCH(G$5,$C$6:$C$9,FALSE))+TIME(0,INDEX($C$12:$C$14,MATCH(G$4,$B$12:$B$14,FALSE)),0),5)),AND(ROUND($F6+1,5)>=ROUND(INDEX($B$6:$B$9,MATCH(G$5,$C$6:$C$9,FALSE)),5),ROUND($F6+1,5)<=ROUND(INDEX($B$6:$B$9,MATCH(G$5,$C$6:$C$9,FALSE))+TIME(0,INDEX($C$12:$C$14,MATCH(G$4,$B$12:$B$14,FALSE)),0),5))),G$4,""))

Excel - Evaluate multiple cells in a row and create report or display showing lowest to highest

In an Excel 2003 spreadsheet, I have the top row of cells calculating the number of days and hours I have worked on something based on data I put in the cells below for each category. For example I enter the time spent on Programming, Spoken languages, house, piano, guitar...etc. The top cell in each category will keep track of and display how many days and hours I spent as I add the time spent for each category each day. I want to evaluate this top row and then list in a "report" (like a pop up box or another tab or something) in order from least amount of time to the most amount of time. This is so I can see at a glance which category is falling behind and what I need to work on. Can this be done in Excel? VBA? Or do I have to write a program from scratch in C# or Java? Thanks!
VH
Unbelievable... I've been scolded for trying to understand an answer and requested to mark this question answered. I don't see anything to do this and could not find anything that tells you how, so I'm just writing it here. MY QUESTION WAS ANSWERED... But thanks anyway...

Consider the following screenshot:
The chart data is built with formulas in columns H3:I3 and below. The formulas are
H3 =INDEX($B$3:$F$3,MATCH(SMALL($B$2:$F$2,ROW(A1)),$B$2:$F$2,0))
I3 =INDEX($B$2:$F$2,MATCH(SMALL($B$2:$F$2,ROW(A1)),$B$2:$F$2,0))
Copy down and build a horizontal bar chart from the data. If you want to change the order of the source data, use LARGE() instead of SMALL().
Alternative Approach
Instead of recording your data in a matrix, consider recording in a flat table with columns for date, category and time spent. That data can then easily be evaluated in many possible ways without using any formulas at all. The screenshot below shows a pivot table and chart where the data is sorted by time spent.
Edit after inspecting file:
Swap rows 2 and 3. Then you can choose one of the approaches outlined above.
Consider entering the study time as time values. It is not immediately clear if your entry 2.23 means 2 hrs and 23 minutes, or 2 hrs plus 0.23 of an hour, which totals to 2hrs, 13 minutes.
If you are using the first method, then all your sums involving decimals are off. For example, the total for column B is 7.73 as you sum it. Is that meant to be 7 hrs and 73 minutes? That would really be 8 hrs and 13 minutes, no? Or is it meant to be 7 hrs and 43 minutes? You can see how this is confusing. Use the colon to separate hrs and minutes and - hey - you can see human readable time values and don't have to convert minute values into decimals.

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