How to calculate difference between rows of csv file with python?

I am new to Python. I would like to do the difference between two rows of a csv file when they have the same id. Thi...

What is the best way to remove interpolation from a time series data in Pandas??

Is there a better way to remove interpolated data from time series data in pandas data frame ? I have a time series...

How to calculate moving average using NumPy??

There seems to be no function that simply calculates the moving average on numpy/scipy, leading to convoluted soluti...

R: NaNs produced?

I have a time series in R Studio. Now I want to calculate the log() of this series. I tried the following: i <-...

R/zoo: index entries in ‘order.by’ are not unique?

I have a .csv file containing 4 columns of data against a column of dates/times at one-minute intervals. Some timest...

Insert rows for missing dates/times?

I am new to R but have turned to it to solve a problem with a large data set I am trying to process. Currently I hav...

Error in na.fail.default(as.ts(x)) : missing values in object in time series forecasting?

I am trying to perform fit diagnostic on a salesData forecast using acf(SalesDataFC$residuals) however I am gett...

Plotting two variables as lines using ggplot2 on the same graph?

A very newbish question, but say I have data like this: test_data <- data.frame( var0 = 100 + c(0, cumsum(...

What is the difference between numpy.fft.fft and numpy.fft.fftfreq?

I am analysing time series data and would like to extract the 5 main frequency components and use as features for tr...

Multivariate time series modelling in R?

I want do fit some sort of multi-variate time series model using R. Here is a sample of my data: u cci ...

Peak signal detection in realtime timeseries data?

Update: The best performing algorithm so far is this one. This question explores robust algorithms for detectin...

Date ranges in Pandas?

After fighting with NumPy and dateutil for days, I recently discovered the amazing Pandas library. I've been poring ...

How is 'yhat' (prediction) calculated in the fbprophet library??

I am using fbprophet for time-series predictions in Python and I am wondering how the yhat (prediction) column is ca...

Using geom_rect for time series shading in R?

I am trying to shade a certain section of a time series plot (a bit like recession shading - similarly to the graph ...

how to use tsfresh python package to extract features from time series data??

I have a list of lists where each list represents a time series : tsli=[[43,65,23,765,233,455,7,32,57,78,4,32],[34,...