Linear Regression Model in scikit-learn Returning Negative R^2 Score
so i tried using the scikit learn linear regression on this olympic data frame.
the part for athletes is working but for age its not showing a linear prediction(i know that the correlation of age vs medals is not good)
Why I am getting this error I think the code is correct
exact error
I have checked code may times also grid_2 dictionary is also correctly mentioned
Dictonary
average_precision_score for multiclass
I am trying to compute the following
ValueError: Input 0 of layer “sequential” is incompatible with the layer: expected shape=(None, 247, 15), found shape=(None, 15)
import pandas as pd import tensorflow as tf from sklearn.model_selection import train_test_split dataset = pd.read_csv(‘/content/survey lung cancer.csv’) x = dataset.drop(columns=[“LUNG_CANCER”]) y = dataset[“LUNG_CANCER”] y= y.replace(“YES”, 1) y= y.replace(“NO”, 0) x= x.replace(“M”, 1) x= x.replace(“F”, 0) x_train, x_test, y_train, y_test = train_test_split(x, y, test_size=0.2) model = tf.keras.models.Sequential() model.add(tf.keras.layers.Dense(256, input_shape=x_train.shape, activation=’sigmoid’)) model.add(tf.keras.layers.Dense(256, activation=’sigmoid’)) model.add(tf.keras.layers.Dense(1, activation=’sigmoid’)) model.compile(optimizer=’adam’, loss=’binary_crossentropy’, […]
Scaling plots to match shape
I am trying to distinguish a certain shape from a series of plots.
By doing so, I would be able to apply Hierarchical Clustering to cluster these plots into different categories based on their shape. I already wrote the code to create a distance matrix which I use for clustering.
How to use ndcg_score to calculate NDCG if there is no real label in the recall result?
I encountered some confusion when using ‘sklearn. metrics. ndcg_score’ to calculate NDCG. Specifically, suppose I have the following situations:
Does SimpleImputer from sklearn.impute keeps the original feature (column) after performing imputation?
I am trying to first impute a categorical feature(embark from titanic dataset) using SimpleImputer and then do OHE encoding on it. The problem is, the imputer is creating a column of the original values that are in string. I tried setting False to copy parameter but it’s still creating a column of the original values. If I try to use this in pipeline to apply logistic regression, the string values breaks the code. How can avoid making the copy of the original values?
How can I understand the output of cross_val_predict?
I have the following lines
sklearn pipeline (de)serialization in DAG format
Consider sklearn pipeline which contains only the following steps: Pipeline
, FeatureUnion
, Transformer
.