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Questions - dataset

Split a Tensorflow dataset by class label

I have a tensorflow dataset that I created with the following function: dataset = tf.data.Dataset.from_tensor_slices((imgs, labels)). My labels are "0" and "1" and I would like to ...
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minceduni

tensorflow

filter

split

dataset

Votes: 0

Answers: 1

Latest Answer

Filter will work. dataset_zero = dataset.filter(lambda image, label: label == 0) dataset_one = dataset.filter(lambda image, label: label == 1) Dataset's stream based operations are annoying though. I...
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Yaoshiang

Change dot (.) to comma (,) in R

I have a dataset I am working on in R, however, one of the column values has dot (.) instead of a comma (,) so I think this might be messing up when I am running the regression. Does anyone know what ...
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whoknows

statistics

dataset

regression

Votes: 0

Answers: 2

Latest Answer

Assuming you have a dataframe named df df %>% mutate_all(funs(str_replace(., "\\.", ","))) If its for one column only df %>% mutate(col1 = gsub("\\.", ",&quo...
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Dutt

Is there a way to have two queries, as a part of JAVA implementation, to use the same data set?

I am working on a Java Service (Hibernate) and I am calling sequentially a count query and a query to fetch the corresponding records (native queries). There are cases where the count is different tha...
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dio789

java

sql

hibernate

dataset

Votes: 0

Answers: 1

Latest Answer

I guess it is quite not good idea to use counts. think about what primary key on record stands for... or maybe other fields identify records you need. Retrieved Dataset on client gives you what was in...
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Vadim

Aggregates types in R

I need to write a script in R (Rstudio) that produces a new table, with 6 rows, that aggregates the vehicle types in cars dataset. In the first field will be the type of vehicle (sports car, SUV, Wago...
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Jiana

r

dataset

aggregate

Votes: 0

Answers: 1

Latest Answer

It would be much easier to answer this if you posted a reproducible example. However this should work: library(dplyr) cars %>% group_by(Type) %>% mutate(across(`Wheel base`:`Retail p...
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SamR

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