excel | Excel online Editor | Data Visualization library
kandi X-RAY | excel Summary
kandi X-RAY | excel Summary
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Top functions reviewed by kandi - BETA
- Sets widths of columns in list .
- Clear data from a list of items .
- get byte length
- Helper function for getting a string of n characters .
- Get name of the file
- Convert a String to ArrayBuffer
- Resolve a directory path .
excel Key Features
excel Examples and Code Snippets
def excel_title_to_column(column_title: str) -> int:
"""
Given a string column_title that represents
the column title in an Excel sheet, return
its corresponding column number.
>>> excel_title_to_column("A")
1
Community Discussions
Trending Discussions on excel
QUESTION
I have source (src
) image(s) I wish to align to a destination (dst
) image using an Affine Transformation whilst retaining the full extent of both images during alignment (even the non-overlapping areas).
I am already able to calculate the Affine Transformation rotation and offset matrix, which I feed to scipy.ndimage.interpolate.affine_transform
to recover the dst
-aligned src
image.
The problem is that, when the images are not fuly overlapping, the resultant image is cropped to only the common footprint of the two images. What I need is the full extent of both images, placed on the same pixel coordinate system. This question is almost a duplicate of this one - and the excellent answer and repository there provides this functionality for OpenCV transformations. I unfortunately need this for scipy
's implementation.
Much too late, after repeatedly hitting a brick wall trying to translate the above question's answer to scipy
, I came across this issue and subsequently followed to this question. The latter question did give some insight into the wonderful world of scipy
's affine transformation, but I have as yet been unable to crack my particular needs.
The transformations from src
to dst
can have translations and rotation. I can get translations only working (an example is shown below) and I can get rotations only working (largely hacking around the below and taking inspiration from the use of the reshape
argument in scipy.ndimage.interpolation.rotate
). However, I am getting thoroughly lost combining the two. I have tried to calculate what should be the correct offset
(see this question's answers again), but I can't get it working in all scenarios.
Translation-only working example of padded affine transformation, which follows largely this repo, explained in this answer:
...ANSWER
Answered 2022-Mar-22 at 16:44If you have two images that are similar (or the same) and you want to align them, you can do it using both functions rotate and shift :
QUESTION
I have what I think is a standard formula, which is behaving differently depending on which Excel version I use, Excel 365 or Excel 2019
...ANSWER
Answered 2022-Feb-15 at 15:13Interesting post. With the problem at hand being illogical, the explaination (or rather my hypothesis due to the lack of documentation) is actually the opposite. In short: Dynamic arrays are the culprit to the difference between ms365's and previous versions of handling each condition in the AND()
function.
First, even though the ms-documentation tells us that all conditions need to evaluate to TRUE
, the reality of it is that there are two other important rules for us to keep in mind:
- Text values or empty cells supplied as arguments are ignored.
- The AND function will return #VALUE if no logical values are found or created during evaluation.
Let's assume that with the below examples, the value NY
is written in cell A1
. In Excel 2019 and earlier versions, you should recieve the following results:
Whether it's intentional or not, in versions prior to ms365 any text value will result in an error unless it's written in an array format or pulled in through a cell-reference.
I can only expect the difference with ms365 to be explained that the latter will automatically evaluate the single text-value as an array due to the mechanics of dynamic array functionality.
QUESTION
I have a question about appending a dataframe to existing sheet on existing file.
I tried to write the code by myself
...ANSWER
Answered 2021-Aug-16 at 17:07It seems this function is broken in pandas 1.3.0 Just look at this document , when trying to append to existing sheet it will either raise an error, create a new one or replace it
if_sheet_exists{‘error’, ‘new’, ‘replace’}, default ‘error’ How to behave when trying to write to a sheet that already exists (append mode only).
error: raise a ValueError.
new: Create a new sheet, with a name determined by the engine.
replace: Delete the contents of the sheet before writing to it.
New in version 1.3.0
The only solution is to downgrade pandas (1.2.3 is working for me)
QUESTION
In VBA, if I understand correctly, emptiness means that a variant has not been initialized, i.e., it is the default value of a variant before an assignment.
There appear to be four ways to test if a variant is empty:
...ANSWER
Answered 2022-Jan-21 at 10:13Okay, I've done some testing in Excel. I don't intend to accept this answer because I don't think it's a definitive answer to my question because:
- It's specific to Excel, so I don't know how these results will carry over to Access and other Office programs.
- It's just a test of a variety of cases. A definitive answer would be based on knowledge of the algorithms used to calculate
IsEmpty()
,VarType
, andTypeName()
, and to assignEmpty
.
With that disclaimer, here is the VBA function used for the test:
QUESTION
I know that it's way easier to ensure single instances from the class level, and that there's the excellent Staticish
module from Jonathan Stowe that does the same by using roles, but I just want to try and understand a bit better how the class higher order working can be handled, mainly for a FOSDEM talk. I could think of several ways of doing to at the metamodel level, but eventually this is what I came up with:
ANSWER
Answered 2022-Jan-16 at 16:02There's a few misunderstandings in this attempt.
- There is one instance of a meta-class per type. Thus if we want to allow a given type to only be instantiated once, the correct scoping is an attribute in the meta-class, not a
my
. Amy
would mean there's one global object no matter which type we create. - The
compose
method, when subclassingClassHOW
, should always call back up to the basecompose
method (which can be done usingcallsame
). Otherwise, the class will not be composed. - The
method_table
method returns the table of methods for this exact type. However, most classes won't have anew
method. Rather, they will inherit the default one. If we wrap that, however, we'd be having a very global effect.
While new
is relatively common to override to change the interface to construction, the bless
method - which new
calls after doing any mapping work - is not something we'd expect language users to be overriding. So one way we could proceed is to just try installing a bless
method that does the required logic. (We could also work with new
, but really we'd need to check if there was one in this class, wrap it if so, and add a copy of the default one that we then wrap if not, which is a bit more effort.)
Here's a solution that works:
QUESTION
I have an ECS task running on Fargate on which I want to run a command in boto3 and get back the output. I can do so in the awscli just fine.
...ANSWER
Answered 2022-Jan-04 at 23:43Ok, basically by reading the ssm session manager plugin source code I came up with the following simplified reimplementation that is capable of just grabbing the command output:
(you need to pip install websocket-client construct
)
QUESTION
I want to remove all signs from my dataframe
to leave it in either one of the two formats: 100-200
or 200
So the salaries should either have a single hyphen between them if a range of salaries if given, otherwise a clean single number.
I have the following data:
...ANSWER
Answered 2022-Jan-12 at 08:50You can do it in only two regex passes. First extract the monetary amounts with a regex, then remove the thousands separators, finally, join the output by group keeping only the first two occurrences per original row.
The advantage of this solution is that is really only extracts monetary digits, not other possible numbers that would be there if the input is not clean.
QUESTION
I am trying to pivot a table that has headings and sub-headings, so that the headings go into a column "date", and the subheadings are two columns instead of repeating.
Here is an example of my data.
This was produced using dput()
, so while in the original excel file, each date spanned over both sub-headings ("blue" and "green"), once in R, these blank cells were re-named X.1, X.2, etc.
ANSWER
Answered 2022-Jan-05 at 20:59The following code should produce your desired output, though others may have more elegant solutions:
QUESTION
Thanks for taking the time to review my post. I hope that this post will not only yield results for myself but perhaps helps others too!
IntroductionCurrently I am working on a project involving pointclouds generated with photogrammetry. It consists of photos combined with laser scans. The software used in making the pointcloud is Reality Capture. Besides the pointcloud export one can export "Internal/External camera parameters" providing the ability of retrieving photos that are used to make up a certain 3D point in the pointcloud. Reality Capture isn't that well documented online and I have also posted in their forum regarding camera variables, perhaps it can be of use in solving the issue at hand?
Only a few variables listed in the camera parameters file are relevant (for now) in referencing camera positioning such as filename, x,y,alt for location, heading, pitch and roll as its rotation.
Currently the generated pointcloud is loaded into the browser compatible THREE.JS viewer after which the camera parameters .csv file is loaded and for each known photo a 'PerspectiveCamera' is spawned with a green cube. An example is shown below:
The challengeAs a matter of fact you might already know what the issue might be based on the previous image (or the title of this post of course ;P) Just in case you might not have spotted it, the direction of the cameras is all wrong. Let me visualize it for you with shabby self-drawn vectors that rudimentary show in what direction it should be facing (Marked in red) and how it is currently vectored (green).
Row 37, DJI_0176.jpg is the most right camera with a red reference line row 38 is 177 etc. The last picture (Row 48 is DJI_189.jpg) and corresponds with the most left image of the clustured images (as I didn't draw the other two camera references within the image above I did not include the others).
When you copy the data below into an Excel sheet it should display correctly ^^
...ANSWER
Answered 2022-Jan-02 at 22:26At first glance, I see three possibilities:
It's hard to see where the issue is without showing how you're using the
createCamera()
method. You could be swappingpitch
withheading
or something like that. In Three.js, heading is rotation around the Y-axis, pitch around X-axis, and roll around Z-axis.Secondly, do you know in what order the
heading, pitch, roll
measurements were taken by your sensor? That will affect the way in which you initiate yourTHREE.Euler(xRad, yRad, zRad, 'XYZ')
, since the order in which to apply rotations could also be'YZX', 'ZXY', 'XZY', 'YXZ' or 'ZYX'
.Finally, you have to think "What does
heading: 0
mean to the sensor?" It could mean different things between real-world and Three.js coordinate system. A camera with no rotation in Three.js is looking straight down towards-Z
axis, but your sensor might have it pointing towards+Z
, or+X
, etc.
I added a demo below, I think this is what you needed from the screenshots. Notice I multiplied pitch * -1
so the cameras "Look down", and added +180
to the heading so they're pointing in the right... heading.
QUESTION
I asked a question yesterday about template method overloading and resolving issues using type traits. I received some excellent answers, and they led me to a solution. And that solution led me to more reading.
I landed on a page at Fluent CPP -- https://www.fluentcpp.com/2018/05/18/make-sfinae-pretty-2-hidden-beauty-sfinae/ that was interesting, and then I listened to the Stephen Dewhurst talk that Mr. Boccara references. It was all fascinating.
I'm now trying to understand a little more. In the answers yesterday, I was given this solution:
...ANSWER
Answered 2021-Dec-14 at 16:34Vocabulary
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