why C4 did not take column value and insert it before each item in column 1 i think it should be [[ 1 9 6][ 2 99 7][ 3 999 8]] also why the result is equal to not equal to while the insert axis along axis 0 will inserted normally the result: Answer after searching we found the answer
Tag: arrays
Python add 1d array to 2d array by column
I have a 1d array and 2d array I want: I tried np.vstack, np.concenrate but all failed Answer You can use numpy.column_stack:
Iterate over 2D numpy array to find corresponding maximum values
I have a set of data as such: I need to iterate over each value in the first column, find the corresponding maximum value in the second column and then store in a new array (or delete the other values from this array). For this example the final output would therefore be: I have managed to write a piece of
How to start a for loop from the end of a vector, and at the value 0 do something
I have to start looping a vector from its end to zero. When I meet the value 0 I need to replace it with the sum of the three previews values. The exception will be for the first zero met, I need just to sum the previous two values. e.g. Expected result: Code The code is not working. Where am
Rearrange elements in numpy array to plot a 3d array in 2d, preserving grouping
Hello I have a 3d numpy array of shape (nc, nx, ny). I would like to plot it (with matpoltlib) using x and y as the axis, but in such a way that all c values are close to each other and arranged in a rectangle around a central value (you can assume nc is a power of 2). Thanks
Damping harmonic oscillation code with python
I don’t know that how make the code the three graph in damping harmonic oscillation model, [X – t(time)], [V(velocity) – t(time)], [a(acceleration) – t(time)] graph i can make the [X – t(time)] graph but i don`t know how to make another graphs.. Answer Why can’t you just take the derivative of X to get V and A? Gives,
How to remove multiple object from the list at the same time
I am trying to write a code such that it removes adjacent (+n, -n) pairs such as (3,-3) (4,-4) etc. However I cannot use del[i] since when I remove an element the xarray also changes. I tried to use deepcopy to copy the x array but I couldnt manage to run the code. Answer You can sort the list of
Why is python printing weird results while using the nested loop here?
I was given an array of strings and I want to split each of the individual strings into separate characters and store them in a separate 2-D array. I wrote the following code:- But doing this gives weird values in my two-dimensional array, mat. Each of the row of the 2D array mat gets printed as [‘1′,’2′,’3′,’4’] but this should
How to change inf values in numpy array for the previous non inf value?
I have a numpy array that may contain inf values. The numpy array is a 1D vector of numbers. Is there a way to change the inf values of the array for the previous value of the array (which is not inf)? So if the 1000th index of the array is an inf it should replace it by the 999th
Which numpy index is copy and which is view?
Question Regarding Numpy Indexing which can either return copy or view, please confirm if my understandings are correct. If not, please provide explanations and provide pointers to the related specifications. Q: Basic slicing The Numpy Indexing documentation has Basic Slicing and Indexing section. I believe this section talks only about basic slicing as mentioned one of three ways in Indexing.