com.github.jessemull.microflex.integerflex.stat.CumulativeSumInteger Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of microflex Show documentation
Show all versions of microflex Show documentation
Microplate library for parsing wet lab data.
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/* -------------------------------- Package -------------------------------- */
package com.github.jessemull.microflex.integerflex.stat;
/* ----------------------------- Dependencies ------------------------------ */
import java.util.ArrayList;
import java.util.List;
/**
* This class calculates the cumulative sum of integer plate stacks, plates, wells
* and well sets.
*
*
*
* From wikipedia: a weight function is a mathematical device used when performing
* a sum, integral, or average to give some elements more "weight" or influence on
* the result than other elements in the same set. In statistics a weighted function
* is often used to correct bias. The weighted statistic class implements a weighted
* function by accepting an array of values as weights. The values in each well of
* the stack, plate, set or well are multiplied by the values within the double
* array prior to the statistical calculation.
*
*
*
* Weighted statistical operations can be performed on stacks, plates, sets and
* wells using standard or aggregated functions. Standard functions calculate the
* desired statistic for each well in the stack, plate or set. Aggregated functions
* aggregate the values from all the wells in the stack, plate or set and perform
* the weighted statistical operation on the aggregated values. Both standard and
* aggregated functions can be performed on a subset of data within the stack,
* plate, set or well.
*
*
*
* The methods within the MicroFlex library are meant to be flexible and the
* descriptive statistic object supports operations using a single stack, plate,
* set or well as well as collections and arrays of stacks, plates, sets or wells.
*
*
* Operation
* Beginning
Index
* Length of
Subset
* Input/Output
*
*
*
*
* Standard
*
*
*
*
*
*
* +/-
*
*
*
*
*
*
* +/-
*
*
*
*
*
*
* Accepts a single well, set, plate or stack and an array of weights as input
*
*
* Multiplies the values in each well of a well, set, plate or stack by the values
*
in the weights array then calculates the statistic using the weighted values
*
*
*
*
*
*
*
*
* Aggregated
*
*
*
*
*
*
* +/-
*
*
*
*
*
*
* +/-
*
*
*
*
*
*
* Accepts a single well/set/plate/stack or a collection/array of wells/sets/plates/stacks
*
and an array of weights as input
*
*
* Multiplies the values in each well of a well, set, plate or stack by the values in the
*
weights array, aggregates the data from all the wells in the well/set/plate/stack then
*
calculates the statistic using the aggregated weighted values
*
*
*
*
*
*
* @author Jesse L. Mull
* @update Updated Oct 18, 2016
* @address http://www.jessemull.com
* @email [email protected]
*/
public class CumulativeSumInteger extends DescriptiveStatisticListIntegerWeights {
/**
* Calculates the cumulative sum.
* @param List the list
* @return the result
*/
public List calculate(List list) {
double sum = 0.0;
List result = new ArrayList();
for(Double db : list) {
sum += db;
result.add(sum);
}
return result;
}
/**
* Calculates the weighted cumulative sum.
* @param List the list
* @param double[] weights for the data set
* @return the result
*/
public List calculate(List list, double[] weights) {
double sum = 0.0;
List result = new ArrayList();
for(int i = 0; i < list.size(); i++) {
sum += (list.get(i) * weights[i]);
result.add(sum);
}
return result;
}
/**
* Calculates the cumulative sum of the values between the beginning and
* ending indices.
* @param List the list
* @param int beginning index of subset
* @param int length of subset
* @return the result
*/
public List calculate(List list, int begin, int length) {
return calculate(list.subList(begin, begin + length));
}
/**
* Calculates the weighted cumulative sum of the values between the beginning
* and ending indices.
* @param List the list
* @param double[] weights of the data set
* @param int beginning index of subset
* @param int length of subset
* @return the result
*/
public List calculate(List list, double[] weights, int begin, int length) {
return calculate(list.subList(begin, begin + length), weights);
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy