Posts by Jessica • 146 points
6 posts
-
2
votes1
answer2245
viewsA: Script to recognize similarity between images
Similar means how similar images are, this is image processing + pattern recognition, you’re searching for features that are similar between two or more images. I suggest searching for such terms on…
-
1
votes0
answers42
viewsQ: Incomplete tweets in searchTwitter search method
Hello, community of Stackoverflow BR, I’m playing with the library twitteR of programming language R, and I realize that in the search that I have made, the texts are cut, example: "RT…
-
1
votes3
answers226
viewsA: Average temperature in R
Next, follow the code snippet that solves your problem. tempo_inicial <- '19:00' tempo_final <- '23:30' #Encontrar indice da hora inicial e final #match retorna o primeiro casamento que…
-
3
votes1
answer549
viewsA: Reading PDF in R
The table in the PDF, is an image. This R package searches for textual elements, it returns an empty list precisely because there is no text in the file. You need techniques that do text recognition…
-
3
votes1
answer54
viewsA: How to get the N-Points FFT in R?
I was able to create a function in R similar to numpy.fft.rfft. I’ll leave you with a question because that answer might be useful to someone. In Python the following operation generates the…
-
3
votes1
answer54
viewsQ: How to get the N-Points FFT in R?
Hi, I have a question about FFT, I am seeking a similar method to numpy.fft.rfft. I wonder if anyone knows a way of calculating the R N-Points FFT. The following is code with only normal fft.…