python (65.2k questions)

javascript (44.3k questions)

reactjs (22.7k questions)

java (20.8k questions)

c# (17.4k questions)

html (16.3k questions)

r (13.7k questions)

android (13k questions)

Questions - null

Can't initialize a NULL char array?

I have to inizialize a char array [DIM_MAX] to a null value in order to pass it to another function. Before passing it to this function, I am trying to print it as a local variable in order to underst...
test-img

kevin94

arrays

c

null

char

Votes: 0

Answers: 1

Latest Answer

bufferW is an array, which takes up DIM_WRITE bytes. If you're trying to set every byte in the array to 0, the function you want to call is memset(bufferW, 0, DIM_WRITE); //Make sure to #include <s...
test-img

Willis Hershey

Sum with nulls &quot;not working&quot; in SQL Server / Azure

I'm trying to average a set of columns and exclude rows with zero from the denominator by using a case statement within an AVG() function. I read that avg() excludes NULL results so am using the case ...
test-img

onajourney

sql

sql-server

azure

null

average

Votes: 0

Answers: 1

Latest Answer

Instead of setting the 0 values to null, you can filter them out somewhere in between: with a as ( select cast(0 as float) t1, cast(3 as float) t2 ) , b as ( select cast(6 as float) t1, cast(0 as flo...
test-img

Aleix CC

Is there a way to hide nulls in an Altair chart?

I don't want the null values to show on my Altair chart. Is there any way to do this without removing them from my data before charting them? I have a data frame: d7_rent_own d8a_moving 0 ...
test-img

midnightradi0

charts

null

altair

Votes: 0

Answers: 1

Latest Answer

You could drop these using pandas dropna on the dataframe as you are passing it to Altair. This will avoid removing them from the dataframe stored in the variable df_ex. alt.Chart(df_ex.dropna()).mark...
test-img

joelostblom

IllegalArgumentException not sure if I wrote the array right

gamePanel gp; Tile[] tile; public tileManager(gamePanel gp){ this.gp = gp; tile = new Tile[10]; // this means we're going to create 10 types of tiles (water, grass, water...
test-img

Martin Parunev

java

arrays

exception

null

project

Votes: 0

Answers: 0

Posts

Questions

Blogs

Jobs