Category "interpolation"

Rotating a 2D image using change of coordinates and scipy interpolation

I'm trying to rotate my image but it is like my frame does not rotate at all. Here are the following steps of my code: 1 - Create an image of an inclined disk.

Filling a column based on the value of another column in data.table

I have data as follows: dat <- structure(list(amount_of_categories = c(2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L ), mun

Complex interpolation for Isotopic data

I have another question, is there a package that interpolates precipitation data taking into account mountains and oceans? I have so far used Numpy and Basemap

Interpolation using Lagrange not working how I want. How can I interpolate with a logarithmic function?

I am trying to interpolate 3 values that I have measured, each one is related to a circular area of which I am considering the diameter (40mm, 50mm, and 100mm).

How can I reduce the artifacts generated during "Thin Plate Spline" interpolation in Python?

At the Top "right", there is the 2D-density plot of the recorded data (actual), fewer in number. On the top-left is the interpolated data (thin-plate), i.e. la

joining dotted line by interpolation in an image

I have this image as shown below. It is a binary mask I created this image using the below code. Basically I got the x_idx, y_idx for just those white pixels,

Interpolation function for compass bearings in python

Essentially, I have a CSV file full of compass bearings in radians from 0 to 2pi and attached timestamps that looks something like this: time, bearing 0.36,0.01

NumPy Interpolate Between Two 2-D Arrays At Various Timesteps

I have a pair of two-dimensional arrays from a gridded dataset (in GeoTIFF format), both with the exact same resolution and number of rows/columns. Suppose Arra

SciPy interpolation: precision of methods?

SciPy interpolation has 3 supported methods: Supported are “linear” and “nearest”, and “splinef2d”. “splinef2d”

(Cubic) spline interpolation

I want to perform a (cubic) spline interpolation for population data to "transform" yearly data into quarterly data. I know that there are a fair number of flaw

Bilinear interpolation with non-aligned input points

I have a non-grid-aligned set of input values associated with grid-aligned output values. Given a new input value I want to find the output:     &nbs

Fixing Knots for scipy.interpolate.bisplrep

I have a 6x6 matrix of data(values_master) for a 6x6 set of data points: master_x,master_y=mgrid[950:1450:6j,550:1050:6j] I then try and interpolate the data

Interpolate (or extrapolate) only small gaps in pandas dataframe

I have a pandas DataFrame with time as index (1 min Freq) and several columns worth of data. Sometimes the data contains NaN. If so, I want to interpolate only

Upsample and Interpolate a NumPy Array

I have an array, something like: array = np.arange(0,4,1).reshape(2,2) > [[0 1 2 3]] I want to both upsample this array as well as interpolate the re