Quantities | Swift framework for dealing with physical units | iOS library
kandi X-RAY | Quantities Summary
kandi X-RAY | Quantities Summary
This is a Swift module for working with physical quantities with units, like velocities, angles, masses, etc. It is heavily inspired by the new Measurement and Unit types in Foundation. I wanted to see if I could build a purely Swift version of these that I could use for deployment to older OS versions (Measurement in Foundation currently requires macOS 10.12 and iOS 10) and to experiment with extensions to the support provided using Swift's type system. In particular, I wanted to see if I could make it even easier to create and work with these numbers, as well as experiment with composite unit types and complex calculations. I've changed the names to Quantity for the base numerical type and DimensionalUnit for the unit types to avoid conflicts with Foundation. The number of units I support is a little limited now, only because I haven't taken the time to enter them all in with conversion factors.
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QUESTION
I have 3 tables. For simplicity I changed them to these sample tables.
table1: CorporateActionSmmary
...ANSWER
Answered 2021-Jun-15 at 02:57you are almost there.. you just need to use the same logic to join to the product master table. However, since you need the total of quantity, you need to group by the other columns you select (but not aggregate).
The query will be something like this :
QUESTION
I would like to run this equation based on different variable scores in multiple columns simultaneously:
#1scores/(#1scores+#2scores+#0scores)
If my DF looks like this
...ANSWER
Answered 2021-Jun-10 at 14:17If 0, 1, 2 and NA
are the only values in your dataframe you can do -
QUESTION
I'm trying to update product_qty
inside my mdf file database based on values given in my two list of Integers, I basically just want to loop inside of my list to gather IDs
and a collection of quantities inside product_qty()
list. I just want to subtract quantites here
ANSWER
Answered 2021-Jun-09 at 00:04Exact syntax is probably a little off as I'm doing this from memory, but concept is what I'm going for so should be enough to get you going in the right direction with a little research.
QUESTION
I see the current chapter of Underactuated: System Identification and the corresponding notebook, and it currently does it through symbolics.
I'd like to try out stuff like system identification using forward-mode automatic differentiation ("autodiff" via AutoDiffXd
, etc.), just to check things like scalability, get a better feel for symbolics and autodiff options in Drake, etc.
As a first steps towards system identification with autodiff, how do I take gradients of MultibodyPlant
quantities (e.g. generalized forces, forward dynamics, etc.) with respect to inertial parameters (say mass)?
- Note: Permalinks of Underactuated chapter + notebook at time of writing: sysid.html, sysid.ipynb
ANSWER
Answered 2021-Jun-09 at 12:41Drake's formulation of MultibodyPlant
, in conjunction with the Drake Systems framework, can allow you to take derivatives (via autodiff) with respect to inertial parameters by using the parameter accessors of RigidBody
on the given plant's Context
.
Please see the following tutorial:
https://nbviewer.jupyter.org/github/RobotLocomotion/drake/blob/nightly-release/tutorials/multibody_plant_autodiff_mass.ipynb
QUESTION
I want to make the user input how much elements they want to input and the elements itself on the same line. Ex:
...ANSWER
Answered 2021-Jun-08 at 12:22There's a couple ways to do this.
If it is ok for the user to enter a comma-separated list, then eval
is very helpful. This will automatically convert the values to floats/integers.
QUESTION
We have a table with item codes and current stock quantity and quantities in aging brackets whenever they were received (1-90, 91-120, etc) as follows:
I need to distribute the STOCK_AS_ON_DATE
quantity in the age brackets until no balance quantity is left.
Example:
Item A's STOCK_AS_ON_DATE
is 40377, in A1TO90
column we can see that 4000 quantities were received, in A91TO120
, 4000 quantities were received, in A121TO270
, 13000 quantities were received, we want to distribute the STOCK_AS_ON_DATE
quantity in such a way in the other aging fields until the total of all the aging fields equals STOCK_AS_ON_DATE
. In this item's case, when we reach column A631TO720
, 1377 quantity balance is left out of the 40377. If any aging bracket value is 0, we have to leave it as it is and move forward.
Below is the Oracle query to create a sample table and data:
...ANSWER
Answered 2021-Jun-07 at 14:38A brute-force approach might be to use least()
to decide whether to use the column quantity or the remainder from adding up all the columns to the left; with greatest()
to stop any negative values. Something like:
QUESTION
I have been working on a vanilla JS project (no JQuery) and I am implementing local storage to save data on refresh. My below code is deleting all the items in the local storage array instead of the particular item I have set to be removed. Any help appreciated!
...ANSWER
Answered 2021-Jun-05 at 21:56localStorage
only accepts one argument, which is the key of the item you want to remove: https://developer.mozilla.org/en-US/docs/Web/API/Storage/removeItem
What you need to do instead is mutate the local items
and quantities
arrays (remove the appropriate items) that you parsed from localStorage
, then do localStorage.setItem('items', items)
and localStorage.setItem('quantities', quantities)
.
QUESTION
Given a pandas dataframe of product variants with their descriptions, colorIDs and quantity sold, how do I group these variants into the main product and add up the quantities sold for each? You can see the variants share some of the descriptive text but the colors and sizes don't match.
Input data (extract):
Description ColorID Quantity Sold Rollerball pen (Blue) 3 100 Packing Box 305x215x150mm 0 50 Coffee Mug (White) 1 45 Rollerball pen (Black) 2 220 Packing Box 215x215x100mm 0 85 Micro Correct Fluid 10ml 0 80 Coffee Mug (Black) 2 40Expected Result:
Description Quantity Sold Rollerball pen 320 Packing Box 135 Coffee Mug 85 Micro Correct Fluid 10ml 80 ...ANSWER
Answered 2021-Jun-05 at 14:17try via assign()
,rsplit()
and groupby()
:
QUESTION
Can anyone tell me what is wrong with this code? It is from https://jakevdp.github.io/blog/2012/09/05/quantum-python/ . Everything in it worked out except the title of the plot.I can't figure it out.
but when the code is run, it polts this
Here is the code given:-
...ANSWER
Answered 2021-Jun-04 at 18:23The problem is resolved when blit=False, though it may slow down your animation.
Just quoting from a previous answer:
"Possible solutions are:
Put the title inside the axes.
Don't use blitting"
See: How to update plot title with matplotlib using animation?
You also need ffmpeg installed. There are other answers on stackoverflow that help you through that installation. But for this script, here are my recommended new lines you need to add, assuming you're using Windows:
QUESTION
I am a beginner level programmer and I am again here to take everybody's help and solve my problem. Actually I don't have an error this time but I need to do something which I am not able to,
The thing is that I want to use a for loop 3 times and everytime I have a condition to check if my Quantity1 = 0 or not, again if my Quantity2 is = 0 or not and same for the third time. I can also repeat the code 3 times but I need to do this is because, I am uploading my data to a realtime database. And I am uploading my SelectedDate1 if Quantity1 != 0 and same for the three times, but to read them I have to know that how many Quantities and SelectedDates are uploaded and for that I have created a variable OrderQuantity. But the problem is if the user has selected the 1st date and the 3rd date and not the 2nd one as its quantity is 0, so when it is uploaded it shows OrderQuantity=2
and the selectedDate1 comes under 1 but the 3rd date comes under 2nd node with name 3, but it should come with the name of variable+i, I hope you understand my question. And if not, please comment and I'll provide you an english video for what I want. Hoping your help as soon as possible.-
I think there is no use of main_activity.xml as it will make my question very big.
But here goes my MainActivity.java (without imports as it was very big)
...ANSWER
Answered 2021-Jun-01 at 18:30Edit: since my first two suggestions didn’t work for you, I am suggesting using some abstraction. Declare a class to hold a spinner and its related data, and iterate a list of such objects. Your list can hold a variable number of objects so there will be a variable number of spinners. Caveat: I don’t know Android UI programming, so may be missing a detail or two there. And I still have not compiled my code myself.
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