nimp | Nimp - Node-based image manipulation program | Computer Vision library
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Node-Based Image Manipulation Program.
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QUESTION
I am trying to add r-squared and the number of observations to my regression tables using gtsummary
and multiply imputed data from mice
. I can still extract r-squared using glance
if I pool the model, but mipo
objects are not compatible with tbl_regression
since pooling is already part of the tidying process. Any help with this issue is appreciated.
ANSWER
Answered 2022-Jan-29 at 20:10Thank you for the detailed question and reproducible example.
You diagnosed the issue well. tbl_regression()
expects unpooled results and broom::glance()
expects the pools results. You can get what you need by passing a custom glance()
function.
Example below!
QUESTION
I am exploring model variable selection within imputed data.
One technique is to stack imputations in long format (where n observations in M imputed datasets creates a dataset n x M long), and use weighted regression to reduce the contribution of each observation proportionally to the number of imputations. If we treated the stacked dataset as one large dataset, the standard errors would be too small.
I am trying to use the weights
argument in svyglm
to account for the stacked data, resulting in SEs that you would expect with n obervations, rather than n x M observations.
To illustrate:
...ANSWER
Answered 2021-Sep-14 at 22:29Sorry, no, this isn't going to work.
To handle stacked imputation data with weights you need frequency weights, so that a weight of 1/10 means you have 1/10 of an observation. With svydesign
you specify sampling weights, so that a weight of 1/10 means your observation represents 10 observations in the population. These will (and should) give different standard errors. Pretending you have frequency weights when you actually have imputations is a clever hack to avoid having software that understands what it's doing, which is fine but isn't compatible with survey
, which understands what it's doing and is doing something different.
Currently,if you want to use svyglm
with multiple imputations you need to compute the standard errors separately -- most conveniently with Rubin's rules using mitools::MIcombine
, which is set up to work with the survey package (see the help for with.svyimputationList
and withPV
).
It might be worth putting in a feature request to the mitools
or survey
developers (with citations to examples) to allow for stacked analysis of imputations, but this isn't just a matter of adjusting the weights.
QUESTION
I'm sending a request to a server and trying to unmarshall HTTP Response. It's weird, but some of the responses return 200 and do not give an unmarshall error, while some of them return 200 and give an unmarshall error.
My client code looks like:
...ANSWER
Answered 2021-Sep-10 at 08:00I tried to implement your code at my end, and it's giving the expected output. The code I tried is given below.
Note: This is not a solution to the exact problem, since I was not able to reproduce the same.
QUESTION
I have a bunch of files with the audio signals in them and I am trying to copy-paste them in another direction ( another folder). I have around 20 folders which include 10 audio signals in each folder. I would like to copy and paste them one by one with the same names and also be able to apply some filtering in the audio signals as per the below code before I will transfer the audio signals to the new folder. However, I do not want to use the dir function. Can anyone advise what other options do I have? Many thanks in advance.
my code for the filtering it will be something like this.
...ANSWER
Answered 2020-Oct-07 at 20:35If your signals are within/generated by the MATLAB file you can do this. Otherwise, if your audio files are just residing in another directory the other answer posted works like a charm.
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