function

Populating column in dataframe with pySpark

由 蹲街弑〆低调 提交于 2020-05-22 10:02:25
问题 new to pySpark and I'm trying to fill a column based on conditions using a list. How can I fill a column based conditions using a list? Python logic if matchedPortfolios == 0: print("ALL") else: print(Portfolios) pySpark attempt with error #Check matching column values in order to find common portfolio names Portfolios = set (portfolio_DomainItemLookup) & set(portfolio_dataset_standardFalse) Portfolios #prints list of matched names OR prints empty list matchedPortfolios = len(Portfolios)

PowerShell Function parameters - by reference or by value?

由 China☆狼群 提交于 2020-05-22 09:39:30
问题 So, I tried looking up the answer to this question, and found the generally available answer is that PowerShell passes parameters by value. These generally accepted solutions all post sample code to prove their assertions, similar to the following: Function add1 ($parameter) { Write-Host " In Function: `$parameter = $parameter" Write-Host " In Function: `$parameter += 1" $parameter += 1 Write-Host " In Function: `$parameter = $parameter" } cls $a = 1 Write-Host "Before function: `$a = $a"

Scala regex and partial functions

由 ☆樱花仙子☆ 提交于 2020-05-18 02:42:25
问题 I want to use Scala's collect function with a regular expression. Ideally I'd like to collect only those terms that match the regular expression. I've so far implemented the following which works fine val regex = "(^([^:]+):([^:]+):([^:]+):([+]?[0-9]*\\.?[0-9]+([eE][-+]?[0-9]+)?)$".r <other_code>.collect{case x: String if regex.pattern.matcher(x).matches => x match { case regex(feature, hash, value, weight) => (feature.split("\\^"), weight.toDouble) } } This seems to have an extra step though

Why the result of this code is the same when the arg is different?

由 心已入冬 提交于 2020-05-17 07:06:21
问题 Feel free to make this post as a duplicate if there's already an answer for it because I haven't found the answer. Here's the code (first code): #include <stdio.h> #include <stdlib.h> typedef struct { int val; } yay; yay* New (int val) { yay *Node=(yay*) malloc (sizeof (yay)); Node->val=val; return Node; } void chg (yay *lol) {lol->val=9;} int main () { yay *boi=New (5); printf ("%d\n", boi->val); chg (boi); printf ("%d\n", boi->val); return 0; } The result of the code above is: 5 9 And my

Write a function in R to group factor levels by frequency, then keep the 2 largest categories and pool the rest in “other” [closed]

由 和自甴很熟 提交于 2020-05-17 06:29:53
问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed last month . I would like to write a function in R that takes a single factor variable and a parameter n as inputs, computes the number of cases per category in the factor variable, and only keeps those n categories with the most number of cases and pools all other categories into a category "other." This

How to create and display image in PHP

由 两盒软妹~` 提交于 2020-05-17 05:12:21
问题 I would like to display an image using PHP. Here is what I have tried, but it does not work. <!DOCTYPE html> <html> <head> <title>Title</title> </head> <body> <div class="container"> <?php $img_name = echo $row['img_name']; //I get it from the database img_block($img_name); //Display the image here. //Function to display image function img_block(img_src) { // e.g. img_src = cat.jpg; $img_input = "images/" . img_src; $set_img = '<img class="media-object-ph" src="'.$img_input.'" width="380"

Can I modify the target of a pointer passed as parameter?

由 血红的双手。 提交于 2020-05-16 13:55:12
问题 Can a function change the target of a pointer passed as parameter so that the effect remains outside the function? void load(type *parameter) { delete parameter; parameter = new type("second"); } type *pointer = new type("first"); load(pointer); In this minimal example, will pointer point to the second allocate object? If not, how can I get this kind of behavior? Update: To clarify my intention, here is the code I would use if the parameter would be a normal type instead of a pointer. In this

Contact Form 7 to Wordpress User Database

由 南笙酒味 提交于 2020-05-15 19:24:29
问题 I have written the following function to add the contact form into the user database fields when it is sent. The issue is it sends the final email but isn't entering anything to the database so I must have an error somewhere, anyhelp would be much appreciated. add_action('wpcf7_before_send_mail', 'my_conversion'); function my_conversion($cf7) { global $wpdb; parse_str($_POST['values'], $cf7->posted_data); $user_id = get_current_user_id(); update_user_meta( $user_id, 'prefix', $cf7->posted

Strange behaviour of eval() with lambda functions inside a loop in python

由 冷暖自知 提交于 2020-05-15 09:55:26
问题 I have a string input file as below (one equation per line): 1.0 - x[0] - x[1] x[0] + x[1] I am trying to convert these equations to lambda functions using eval() in python and then use them in an optimization scheme. Here is what I do: def gen_const(input): list = input.read_eqs() for i in list: m = lambda x: eval(i) cons.extend([{'type': 'ineq', 'fun': m}]) return cons This cons fails when it is used inside the optimization scheme. However, if I only consider the first round inside the loop

Find common neighbors of selected vertices

由 回眸只為那壹抹淺笑 提交于 2020-05-15 09:27:06
问题 I wrote a function that gets a list of vertices and an igraph weighted and directed graph. I want to find the common neighbors of input vertices. here is my function: commonNeighbors <- function(v,g) { library(igraph) library(dplyr) allNeigh <- list() for (i in v) { allNeigh <- append(allNeigh,c(neighbors(as.undirected(g),paste(i,sep=""))$name)) } allNeigh <- cbind(allNeigh) allNeigh <- table(as.numeric(allNeigh)) allNeigh <- as.data.frame(allNeigh) colnames(allNeigh) <- c('vertexID','freq')
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