Questions tagged [filtering]
In signal and image processing, it is the complete or partial suppression of some aspect of the signal. Use this tag for questions asking for help with filtering signals or images. For other users, see [filter].
filtering
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Filtering a Python list with a np.array of indices
Could anyone explain to me how the list self.data is indexed/filted with a numpy array off indices (selec_idx)?
The full class is available at https://github.com/kaidic/LDAM-DRW/blob/master/...
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How to assign different filters to each chart on a single dashboard in Spotfire Analyst
I'm using Spotfire analyst 14.0.2 HF-008. I have a single dashboard with different charts created. I want to use a different filtering scheme for each chart. How do I do this?
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Tensorflow 2 dimensional TensorArray
Inside a tf.function, I am implementing a 2D IIR filter. Assuming my IIR filter is of shape (dim1, dim2), I need the (dim1, dim2) most recent outputs to compute the next iteration.
The issue is that I ...
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2
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Create a measure that ignores table filtering and aggregates to a higher level in pivot table - DAX/Power Pivot
I am attempting to rebuild a backend for an excel dashboard with power pivot and need to create a series of columns that give a category level total per personal ID. This means the sum of that ...
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Step count algorithm in R is double-counting some peaks, is there code I can include to prevent this? [closed]
I have been using a threshold-based step count code in RStudio sourced from Ducharme et al. 2021 "A transparent method for step detection using an acceleration threshold" to count steps in ...
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2
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1
answer
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MATLAB signal processing: knowing order of FIR filter to be designed
For didactical purposes i want to create a lowpass FIR filter (of any type, Equiripple will be ok) that attenuate an 'omega1' frequency (example: 0.3 rad/s, normalized) of at least 80 dB.
I know that ...
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Suggestion for a different method of bandpass filtering.`fftfilt` not working properly
I need to bandpass filter vibration data.
I have a signal sampled at 48kHz. I need to extract 40 signals from it. Each of the 40 signals is a band of interest, for example, 20 to 600 Hz or 600 to 1200 ...
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59
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Understanding multiple CTE filtering when used in a view. inPostgreSQL
An ex colleague of mine has written many highly complex nested-view views using multiple CTEs.
The end views are very fast.
It seems to me that his end views filter the initial CTEs, making the rest ...
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How to control behavior in a $_POST[""] form when a text field contains "https://"
I need to exit form validating code if the field "longtxt" contains "https://"
I don't want to allow send hyperlinks
if($_POST["name"] == "" || $_POST["...
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I have a databese with product in excel over 4000 products and i want to filter excat product as i type uniq specification not showing simillary
I want an excel formula to filter the data as soon as I start typing the product specifications and not show me products with similar specifications but only show the product I type. If I write 0.9×50×...
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When executing the stored procedure for productID P1, it incorrectly calculates 0 items sold for 2020, individual query showing 35 items sold in 2020
I made a stored procedure that outputs the total number of items sold during the last three years for the P1 Product ID. Input the ProductID when invoking the procedure.**
DELIMITER //
CREATE ...
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1
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Filter the property of an array of object in a Datatable Column
I'm new to Primevue, Here is my example:
User object:
User {
username: 'test',
email: '[email protected]',
id: 1,
role: {
id: 1,
name: 'Admin',
description: ...
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1
vote
2
answers
53
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How to filter data with sequences missing sections of a specified size or greater?
I have a data frame with a sequence (Slice) of observations for each group. Many of the sequences are incomplete. This is a simplified version of the data:
Slice
GroupID
Observation
1
A
1
2
A
6
3
...
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Understanding the conventions for logical vs. numeric Indexing in R Data Frames using an example [duplicate]
I'm exploring navigating dataframes with a specific example dataframe:
planets_df <- data.frame(
name = c("Mercury", "Venus", "Earth", "Mars", "...
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2
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75
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Filtering Query works not as expected
I use neo4j 5. So it's cypher query language.
goal: Find books for user with genres among which there is at least one preferred genre and no genre that is avoided.
Database:
image of database entities ...
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