units-of-measurement Questions

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I'm trying to figure out if there is a good way to manage units in my pandas data. For example, I have a DataFrame that looks like this: length (m) width (m) thickness (cm) 0 1.2 3.4 5.6 1 7.8 9....

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Does setWidth(int pixels) use device independent pixel or physical pixel as unit? For example, does setWidth(100) set the a view's width to 100 dips or 100 pxs? Thanks.

14

Inspired by Units of Measure in F#, and despite asserting (here) that you couldn't do it in C#, I had an idea the other day which I've been playing around with. namespace UnitsOfMeasure { public ...
Boot asked 8/12, 2008 at 7:32

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I know you can strip units from numbers in SASS when you know the unit before-hand like this: $number: 16px; $without-unit: 16px / 1px; @warn $without-unit; // 16 But is it possible to strip the...
Warranty asked 8/9, 2012 at 5:23

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I'm working with a geographic point using lat/long and need to find other points in our database within a 5 mile radius of that point. However, I can't seem to find out what the "units" are for STB...
Subastral asked 4/6, 2010 at 3:20

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I am calling external function requiring float[], but my array is float<m>[]. How could I strip the unit of measure from array? I need something like the function below, but this does not co...
Ania asked 9/7, 2012 at 22:19

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This is more of a 'philosophy' argument, but I'd like to know what the recommended practice here. I'm not setting it up as a Wiki yet in case there is an 'official' answer. Obviously, there is no ...
Complication asked 27/10, 2011 at 22:8

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We are doing some performance measurements including some memory footprint measurements. We've been doing this with GNU time. But, I cannot tell if they are measuring in kilobytes (1000 bytes) or k...
Shilashilha asked 23/4, 2020 at 16:54

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I'm working on an app that wants to display lengths either in centimeters (cm) or in inches("). Is there a way to select the right unit from the locale? In any event I'm also going to put in an opt...
Concepcionconcept asked 4/2, 2011 at 13:1

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This is a (slightly belated) follow up to Does Baggy add (+) work on MixHash weights? . MixHash is a great tool for Unit comparisons - since I know that my dmix => ("m"=>2,"kg"=>1,"s"=>-2).MixHash ...
Inflationism asked 13/4, 2020 at 9:54

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I am designing a new website and I want it to be compatible with as much browsers and browser settings as possible. I am trying to decide what unit of measurement I should use for the sizes o...
Lerma asked 3/8, 2012 at 15:59

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I'm retrieving JSON from a real estate database. jq makes it easy to pull out the separate properties/values, but some of the values are in inconvenient units. For example, the LotSize variable is ...
Razz asked 26/11, 2018 at 1:6

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This might sound silly but when i'm working with sizes in Xcode, the total frame size is equal to 320 * 568 ( width * height ). I'm fine with that. But the resolution of the phone is actually diffe...
Sparker asked 10/6, 2014 at 13:29

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With pint, how can I filter the units in pint.UnitRegistry by dimensionality? For example, how could I get all units of mass type or of volume type?
Heavensent asked 17/8, 2018 at 2:1

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In a package I am developing I need to define a new unit: flight level (FL) equivalent to 100 ft. The units package provides the following possibility: units::install_conversion_constant("FL", "f...
Misguidance asked 6/8, 2018 at 14:4

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How can I read units into the units package from a variable? I get the error ...not recognised by udunits. An MWE below: library(units) measurements <- runif(10) unitsofmeasurement <- "mm" s...
Dippy asked 23/6, 2018 at 10:39

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I have these measurements in the document 5.3 x 2.5 cm 11 x 11 mm 7 mm 13 x 12 x 14 mm 13x12cm I need to extract 5.3 x 2.5 cm using python using regex. So far my code is below but it does not ...
Glycerite asked 2/9, 2017 at 7:22

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I am looking for an elegant way to pretty-print physical quantities with the most appropriate prefix (as in 12300 grams are 12.3 kilograms). A simple approach looks like this: def pprint_units(v, ...
Metal asked 14/4, 2015 at 12:50

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I have a input type text <input type="text"> Basically I am using javascript ClientRect to get caret details. ClientRect looks like this [object ClientRect] { [functions]: , __proto__:...
Oas asked 12/6, 2017 at 9:28

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JSR 275 seems to be in a rejected state. JScience seems to have an implementation and there seems to be unitsofmeasure. Are there any other open source implementations? Which package is j...
Jacquie asked 19/11, 2010 at 10:28

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I would like to convert from imperial units to metric and vice versa in R. How do I go about doing that? If there is no current way of doing that, how can I create a package that would?
Mathieu asked 27/8, 2011 at 13:14

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I wonder from purely language-design point of view which "features" (semantically and syntactically) an "implementation" of SI units would require. Which "functionality" is generally expected if s...
Moonscape asked 20/9, 2011 at 10:3

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Is it true to say that : there are no fractional power units in F#
Considering asked 4/7, 2012 at 17:8

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Are there any open source libraries for representing cooking units such as Teaspoon and tablespoon in Java? I have only found JSR-275 (https://jcp.org/en/jsr/detail?id=275) which is great but doe...
Oilstone asked 19/6, 2009 at 17:10

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I am using the reference implementation of JSR 363: Units of Measurement API from maven (tec.units:unit-ri). Now I have to add a few units like teaspoon, fluid ounce and so on. Im extending the U...
Polio asked 1/12, 2015 at 14:45

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