argmax Questions
3
Solved
I am working on argmax function of PyTorch which is defined as:
torch.argmax(input, dim=None, keepdim=False)
Consider an example
a = torch.randn(4, 4)
print(a)
print(torch.argmax(a, dim=1))
...
14
Solved
How can I find the row for which the value of a specific column is maximal?
df.max() will give me the maximal value for each column, I don't know how to get the corresponding row.
1
Solved
In Cuda C++, I have a big array Arr of integers, and a function F: int -> int. I want to find the first index of some items in Arr that makes F maximal.
How can I write a kernel that always keep...
Rumery asked 6/12, 2022 at 23:1
5
Solved
I have a DataFrame like this one:
Communications and Search Business General Lifestyle
0 0.745763 0.050847 0.118644 0.084746
0 0.333333 0.000000 0.583333 0.083333
0 0.617021 0.042553 0.297872 0.042...
3
Solved
Sample data:
import pandas as pd
import numpy as np
import datetime
data = {'value': [1,2,4,3], 'names': ['joe', 'bob', 'joe', 'bob']}
start, end = datetime.datetime(2015, 1, 1), datetime.datetim...
Micrometry asked 27/6, 2017 at 20:56
3
Solved
The base library in Haskell has the following type synonyms in Data.Semigroup:
type ArgMin a b = Min (Arg a b)
type ArgMax a b = Max (Arg a b)
Here are links to the haddocks: ArgMin and ArgMax
W...
Nutritionist asked 20/11, 2020 at 12:54
3
Solved
I often need the maximum element of a collection according to the maximization of a criterion which produces a double or int value. Streams have the max() function which requires me to implement a ...
Hesperidin asked 22/12, 2014 at 16:4
1
Solved
Hey I have seen this question - Numpy: argmax over multiple axes without loop but the output is not the shape I desire. So for example, if I give the function an array of dimension: 10x20x12x12x2x2...
3
Solved
In Python, there is numpy.argmax:
In [7]: a = np.random.rand(5,3)
In [8]: a
Out[8]:
array([[ 0.00108039, 0.16885304, 0.18129883],
[ 0.42661574, 0.78217538, 0.43942868],
[ 0.34321459, 0.5383554...
4
Solved
I have DataFrame in view of Name and Date with values of weight in cells :
Name Jan17 Jun18 Dec18 Apr19 count
Nick 0 1.7 3.7 0 2
Jack 0 0 2.8 3.5 2
Fox 0 1.7 0 0 1
Rex 1.0 0 3.0 4.2 3
Snack 0 0...
1
Solved
I have been trying to learn tensor operations and this one has thrown me for a loop.
Let us say I have one tensor t:
t = torch.tensor([
[1,0,0,2],
[0,3,3,0],
[4,0,0,5]
], dtype = torch.float3...
1
Solved
I have 3 categories of classes Tree, Stump, Ground. I've made a list for these categories:
CATEGORIES = ["Tree", "Stump", "Ground"]
When i print my prediction, it gives me the output of
[[0. 1....
3
Solved
Question:
In BigQuery, standard SQL, if I run
SELECT *
FROM mytable
CROSS JOIN UNNEST(mytable.array)
Can I be certain that the resulting row order is the same as the array order?
Example:
Let...
Dulin asked 5/12, 2018 at 14:54
2
Solved
I am working with a dataframe where I have weight each row by its probability. Now, I want to select the row with the highest probability and I am using pandas idxmax() to do so, however when there...
Betrothal asked 1/10, 2018 at 9:39
3
Solved
I have the following code:
import numpy as np
sample = np.random.random((10,10,3))
argmax_indices = np.argmax(sample, axis=2)
i.e. I take the argmax along axis=2 and it gives me a (10,10) matrix...
Monetmoneta asked 28/2, 2017 at 21:55
3
Solved
I have below data frame:
Name1 Scr1 Name2 Scr2 Name3 Scr3
NY 21 CA 45 SF 37
AZ 31 BK 46 AK 23
I am trying to get the maximum value of each row and corresponding name for each row:
df.idxmax(...
2
Solved
I want to find the argmax of the values in a matrix by column, e.g.:
1 2 3 2 3 3
4 5 6 ->
3 7 8
I feel like I should just be able to map an argmax/posmax function over the columns, but I do...
1
I am a beginner in Keras and need help to understand keras.argmax(a, axis=-1) and keras.max(a, axis=-1). What is the meaning of axis=-1 when a.shape = (19, 19, 5, 80)? And also what will be the out...
5
Solved
I can not understand the output of argmax and argmin when use with the axis parameter. For example:
>>> a = np.array([[1,2,4,7], [9,88,6,45], [9,76,3,4]])
>>> a
array([[ 1, 2, 4,...
1
Solved
Suppose I have a tensor in Tensorflow that its values are like:
A = [[0.7, 0.2, 0.1],[0.1, 0.4, 0.5]]
How can I change this tensor into the following:
B = [[1, 0, 0],[0, 0, 1]]
In other wo...
Camilacamile asked 29/6, 2017 at 20:47
4
Solved
So I would like make a slice of a dataframe and then set the value of the first item in that slice without copying the dataframe. For example:
df = pandas.DataFrame(numpy.random.rand(3,1))
df[df[0...
1
In Scala/Spark, having a dataframe:
val dfIn = sqlContext.createDataFrame(Seq(
("r0", 0, 2, 3),
("r1", 1, 0, 0),
("r2", 0, 2, 2))).toDF("id", "c0", "c1", "c2")
I would like to compute a new c...
Debt asked 27/2, 2017 at 11:51
3
Solved
Consider the array a
np.random.seed([3,1415])
a = np.random.randint(0, 10, (10, 2))
a
array([[0, 2],
[7, 3],
[8, 7],
[0, 6],
[8, 6],
[0, 2],
[0, 4],
[9, 7],
[3, 2],
[4, 3]])
What is a ...
Zilber asked 18/11, 2016 at 8:11
1
Solved
I am new to F# and writing some simple algorithm to get used to the language, which needs argMax. Does the standard library come with a function for searching for a list element that maximizes a fu...
2
Solved
I have a N-dimensional array (Named A). For each row of the first axis of A, I want to obtain the coordinates of the maximum value along the other axes of A. Then I would return a 2-dimensional arr...
Netherlands asked 2/6, 2015 at 6:47
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