In google sheets, I have a data set that identifies historical pricing multiplyers for a product in certain size ranges. I'm using square inches in this case. The data is set up in a table like this:
Data set
What I've done is create a formula that allows me to specify any width, height and quantity, find the current square inches, then find the corresponding price for this specific sized product based on where it falls on the range of sizes that I've provided in the data set.
For example, if the square inches equals 150, the price for this size is .6 (or 60 cents) per square inch. (90)
I've already solved this. This is the formula I have:
=(A10*B10)*C10)*(filter(C2:C6,A2:A6<=((A10*B10)*C10),B2:B6>((A10*B10)*C10))
In this example, A10 = height, B10 = width, and C10 = quantity
So, like I said, this works just fine. My problem is that a product with a square inch value of 105 will ultimately have the same cost per square inch as a product with a square inch value of 214. It's only after it crosses the 250 square inch threshold that my cost per square inch will change.
Is there a way to dynamically find the appropriate multiplyer, so that, for instance, a square inch value of 175, would have a multiplyer between .8 and .6 since it falls in the middle of 100 square inches and 250 square inches?
I will try to assume that you have some kind of calculator for calculating coefficients.
If value of the area in C13 then in A16:C17 we can get the calculate range. Put in to A16
=ARRAY_CONSTRAIN(OFFSET(A2:C6,MATCH(C13,A2:A6,1)-2,0),2,3)
After that we can calculate part of price
=IF(ISNUMBER(A16),C16-(C16-C17)*(C13-A17)/(B17-A17),C17)
One formula solution
=VLOOKUP(C13,B2:C6,2)-
(VLOOKUP(C13,B2:C6,2)-VLOOKUP(C13,A2:C6,3))*
(C13-VLOOKUP(C13,A2:C6,1))/
(VLOOKUP(C13,A2:C6,2)-VLOOKUP(C13,A2:C6,1))
The best solution is use a TREND. It's very clear.
=TREND(
OFFSET(B2,MATCH(C13,B2:B3)-1,1,2,1),
OFFSET(B2,MATCH(C13,B2:B3)-1,0,2,1),
C13
)
My sample
References
VLOOKUP
ARRAY_CONSTRAIN
OFFSET
TREND
I trust you'll forgive me if I don't explain the math involved, but this formula should produce the result you want:
=(A10*B10*C10)*(VLOOKUP(A10*B10*C10,A2:C6,3,TRUE)+(((A10*B10*C10)-VLOOKUP(A10*B10*C10,A2:A6,1,TRUE))*(ABS(VLOOKUP(A10*B10*C10,A2:C6,3,TRUE)-INDEX(C2:C6,MATCH(VLOOKUP(A10*B10*C10,A2:C6,3,TRUE),C2:C6,0)-1))/(VLOOKUP(A10*B10*C10,A2:B6,2,TRUE)-VLOOKUP(A10*B10*C10,A2:A6,1,TRUE)))))
I am new to autolayout and I want to understand the constraints of autolayout.
my question is ->
When we apply constraints between two objects it gives you 3 options in relation tab which are equal, less than or equal to and greater than equal to.
So I want to understand when to use less than or equal to and greater than equal to sonstraint.
If possible please help me with some small demo.
I think this will help you.
suppose you want a UILabel to resize maximum height to 80 pixels depending upon its inner content and if more test are displayed in the label then it should truncate its tail but should not increase its height because you have other elements on screen which will not look good if the label will increase more then that. So here you should use height <= 80. So if you set some minimum value of the label like height >= 40 so if the text of the label is not enough to fit in 40 height then it will stay 40 pixels but if text increases then it will increase max up to 80. So here you came to now about the use of greater then or equal to also. Like if you want a element to be minimum some value and if its resizing at runtime then should not be less then any value, then you can use those constraints. I can describe in brief if needed. Thanks.
I have a custom UITableViewCell design as
What I want to is that "points" label should come under the last digit in my Numbers label. Lets say I have 1990 value in my Numbers label the "points" labels should come uder the last digit "0" in this case.
How can I do this?
You can add a Horizontal Space between the points label and the number label with a negative value roughly equates the width of 1 character
For instance here:
Here in this example the horizontal space is -30 while the font size of the number label is 61pt. You can see that it is roughly one character width. (Of course you can apply more complicated math if you please to get the exact value you desire or accommodates your design principle)
And with making sure that the number label does not have an explicit width constrain it will automatically expand to fit its contents and therefore pushing the points label appropriately.
like this:
SCENARIO
I am working on an application that keeps track of blood glucose levels into a graph. On the graph there are "markings" (ex: -200mg) going in vertical order along the y axis on the right side of the screen and "hours" (ex: -12:00 PM) will be along the x axis on the bottom of the graph. I have to plot out little 'dots' to display what the blood glucose level was throughout the way.
ISSUE
I am trying to calculate how to position the 'dots' in the correct time and mg level and I'm having difficulty calculating the positions. I can access the "markings" and retrieve it's marking.center.x to indicate which 'Time Slot' (x axis) and the marking.center.y to indicate which 'MG Level' the 'dot' needs to go into. Problem is it isn't always exactly 12:00 PM or 200mg where it will need to be placed. In fact that would be very rare.
WHAT I NEED
Based on the following variables:
dot.mgLevel
The dot will already know where it needs to go based on the information retrieved from the medical device. It will know the time and mgLevel to assign itself.
marking.mgLevel
The markings will each have evenly distributed values that such as -100mg, -200mg, -300mg ect...
timemarking.timeslot
Each time marking on the bottom will each have evenly distributed times allocated every 30 min. Such as -12:00PM, -12:30PM, -1:00PM ect...
If the dot has a mg Level of 330mg and the closest marking on the mg Level is 300mg, then I need to be able to calculate how much further up the dot needs to move from 300 going towards the 400mg marker.
SO...
If the distance between the markings are 100pt and the dot's mgLevel is 330mg, then I know that I need to move the dot from the 300mg marking toward the 400mg marking by exactly 30pt. That's because it's simple math because the distance between the markings is 100. But in real life it isn't 100, so I need to be able to calculate this.
MY ULTIMATE QUESTION
Say distance between markings is 241 and each marking represents multiples of a hundred. Say my dot has a mgLevel of 412. How do I calculate how far I need to move the dot so that it will be in the correct place?
I THINK?
I think I need to make 241 equal 100%. But I need help.
Distance between markings is 241pt
Markings are multiples of 100mg
1mg will occupy 2.41pt. So 412mg will occupy (2.41 * 412) pt. To know how much to move for the next dot, take the difference in mg and multiply by 2.41.
In general, if distance between 2 markings in points is d, markings are multiples of m, and desired accuracy is k decimal places, 1mg will occupy g:
let divisor = pow(10.0, Double(k))
let g = round((d/m)*divisor) / divisor
I couldn't really find anything on the web yet, what the Adjustment preference on WatchKit's UI elements does.
Does somebody know?
The adjustment will add or subtract that many points from the size of the element. Say you have an element who's height is set relative to the container at 50% and then you add an adjustment of 10. If the containers height is 100 then that element's height will be 60 since it will be 50% of 100 plus 10. I am using it in my app to get the exact height that I want relative to the height of the watch.