Questions tagged [reshape]
In R, Matlab, NumPy and APL, reshape functions allow data to be transformed into more convenient forms.
reshape
3,904
questions
0
votes
0
answers
13
views
Reshape LSTM Layer Input Tensorformat
I have a table with 4700 rows and 50 columns. The last 3 columns should be predicted.
How do I have to set up my X and my y to be able to enter it in an LSTM layer?
X = (?, ?, ?)
y = (?, ?)
I ...
- 65
0
votes
0
answers
16
views
How do I reshape the pythonarrays as input and output for a convolutional neural network in Keras4Delphi properly
I'm working on a Speech2Vec algorithm with 3 neural networks. The first of these networks is for speech recognization. It converts a single FFT window (one dimensional) to 'sound nrs.': 1..1500. So I ...
- 11
4
votes
3
answers
107
views
Sum up replicate columns in dataframe, keep rows unique
I thought this would be a relatively easy task to do but I couldn't find examples here that weren't focused on summing up rows based on column conditions. What I'm trying to achieve is to sum up ...
- 199
1
vote
2
answers
72
views
R - Reshape list with matrices
I am working with a list of matrices that was created from the output of combn: lapply(2:length(c("A","B","C","D","E")), function(n) combn(c("A&...
- 2,671
2
votes
1
answer
49
views
Pivoting dataset to long format for all variable pairs following specific name pattern
I've got data from an experiment with 2 conditions where each participant got tested in both conditions for various properties. The dataset is in wide format, the variable name pattern is like this: ...
- 918
1
vote
1
answer
67
views
Compute row sums and column sums efficiently in Julia
Consider the code below
test_vector = 1:100
group_size = 10
num_groups = div(length(test_vector), group_size)
res_1 = sum(reshape(test_vector, group_size, num_groups), dims=1)
res_2 = sum(reshape(...
- 1,845
5
votes
3
answers
218
views
merge groups of columns in a polars dataframe to single columns
I have a polars dataframe with columns a_0, a_1, a_2, b_0, b_1, b_2. I want to convert it to a longer and thinner dataframe (3 x rows, but just 2 columns a and b), so that a contains a_0[0], a_1[0], ...
- 5,539
1
vote
2
answers
35
views
R : Reshape Long => wide with different value length
I want to reshape from long to wide the following data base
df_long <- data.frame(
indiv_id = c(rep(1,2), rep(2,6), rep(3,4)),
value = c(sample(x = 2), sample(x = 6), sample(x = 4)),
field_id ...
- 11
-2
votes
1
answer
113
views
How to disable ReSharper but keep dotTrace and dotMemory available in VS2022?
I want to run dotTrace and dotMemory from Visual Studio 2022. I do not want ReSharper in any form or shape. Is there a way to achieve this?
Please note - this question is about how to start dotTrace/...
- 10.3k
0
votes
0
answers
35
views
Rowwise comparison in R for several fields [duplicate]
Suppose you have a dataframe df_matches with transaction data structured in the following way:
| REPORT_ID| VALUE | SIDE | COUNTRY | CP1 | CP2 |...
| -------- | -------- | -------- | ...
- 3
0
votes
1
answer
93
views
reshape dataframe based on event occurance and clearing
i want to see if there is an efficient way to reshape dataframe that is read from a tab separated csv file. the data consist of event codes and messages that are stacked up vertically with their ...
- 105
0
votes
0
answers
24
views
how dcast melted data winto a table with header and sub-header?
I have Input data like the one below and I want to know if there is any way to reshape it into an Excel format with a header and sub-header.
Input:
Cons rep name value
10 N=1 A 12
...
- 765
0
votes
1
answer
81
views
Long to wide in Python or SQL with all possible data combinations in columns
Input format:
CUSTOMER MONTH ISSUE
1 M1 ABC
1 M1 DEF
1 M2 ABC
1 M3 QRS
2 M1 PQR
2 M2 PQR
2 M2 ABC
2 M3 DEF
Desired output format:
CUSTOMER M1 M2 M3
1 ABC ABC QRS
1 ...
- 3
0
votes
0
answers
15
views
Shape issues in Training a Keras Model
Here is the code that I have written:
Df_input = df_close[input_col]
df_Output = df_close[Output_cols]
def preprocess_multistep_lstm(Input_Sequence, Output_Sequence, n_steps_in, n_steps_out, features, ...
- 7,243
3
votes
3
answers
96
views
Is it possible to reorder a table in R?
I have a table as belowe:
dput(df)
structure(list(Samples = c("Cont-4", "Cont-4", "Cont-4", "Cont-4",
"Cont-4", "Cont-4", "Cont-4"...
- 51