I have a data.frame with character data in one of the columns. I would like to filter multiple options in the data.frame from the same column. Is there an easy way to do this that I'm missing? …

How would I determine the "number of taps" and the "filter order" since the number of coefficients differ on the left-hand and right-hand sides? Question 4: Are the following logical if-and-only-if …

Compare these 2 queries. Is it faster to put the filter on the join criteria or in the WHERE clause. I have always felt that it is faster on the join criteria because it reduces the result set at the

I have a question about matched filtering. Does the matched filter maximise the SNR at the moment of decision only? As far as I understand, if you put, say, NRZ through a matched filter, …

Nov 10, 2020 · FILTER() will often return a 0 for blank rows, even when a return string is specified. Using filter() I am often getting a 0 return value for empty cells. Assume these 6 …

Mar 22, 2017 · Hi i'm a beginner in signal processing i want to know what'sthe pass band ripple and stop band attenuation of a digital filter ? Thanks.

Thanks to @Andrew, I was able to filter down to just one record by adding the PK!! In my case, I had multiple records, for the same date, which also shared the same reference id. My aim was …

Jan 17, 2025 · I'm studying Polyphase Filter Banks (PFB) but am having some difficulty grasping the concept. Let me clarify my understanding. Suppose we have a signal ranging from DC to …

Oct 23, 2017 · Note: The id property of the objects in people are strings so you have to either provides an array of string ids to filter or convert the id property to a number before passing it …

I have the strain signal of a lateral beam of a car measured at sampling rate 1,200Hz from data acquiring system. Even after using temperature compensation in strain gage, we are getting …