This is an adaptation of the ReadAnalogVoltage tutorial. The idea is to map the analogue input voltage and display that mapped value on a 7 segment display via a shiftbit register.

shiftOutAnalogueDisplay

/*
********************************************************************
  Name    : shiftOutAnalogueDisplay, Test code
  Author  : Benjo Charlie
  Date    : 13 Sept, 2013
  Version : 1.0
  Notes   : This is an adaptation of the ReadAnalogVoltage tutorial.
          : 
          : The idea is to map the analogue input voltage and display that 
          : mapped value on a 7 segment display via a shiftbit register.
********************************************************************

7 Segment (Common Anode) Display Map: (This can be altered to reflect your HW)

    D   E  5V   F   G
 ___|___|___|___|___|____
|                        |
|        F               |
|    E       G           |
|        D               |
|    A       C           |
|        B       H(Dot)  |
|________________________|
    |   |   |   |   |
    A   B  5V   C   H

74HC595 Map:
     _______
Q1  |1 *  16|  Vcc                  PINS 1-7, 15   Q0 - Q7   Output Pins
Q2  |2    15|  Q0                   PIN 8	   GND	     Ground, Vss
Q3  |3    14|  DS                   PIN 9	   Q7"	     Serial Out
Q4  |4    13|  OE                   PIN 10	   MR	     Master Reclear, active low
Q5  |5    12|  ST_CP                PIN 11	   SH_CP     Shift register clock pin
Q6  |6    11|  SH_CP                PIN 12	   ST_CP     Storage register clock pin (latch pin)
Q7  |7    10|  MR                   PIN 13	   OE	     Output enable, active low
GND |8_____9|  Q7"                  PIN 14	   DS	     Serial data input
                                    PIN 16	   Vcc	     Positive supply voltage
           _______
   LED Q1-|1 *  16|-5V
   LED Q2-|2    15|-LED Q0
   LED Q3-|3    14|-PIN 11
   LED Q4-|4    13|-GND
   LED Q5-|5    12|-PIN 8
   LED Q6-|6    11|-PIN 12 ; 1uF TO GND
   DOT Q7-|7    10|-5V
      GND-|8_____9|-NILL

*/

int latchPin = 8;     //Pin connected to ST_CP of 74HC595
int clockPin = 12;    //Pin connected to SH_CP of 74HC595
int dataPin = 11;     //Pin connected to DS of 74HC595
byte SegDisplay;
int sensorPin=A0;

// Setup the combination to display each number on the display
byte ZERO = ; // A number value goes here.
byte ONE = ;
byte TWO = ;
byte THREE = ;
byte FOUR = ;
byte FIVE = ;
byte SIX = ;
byte SEVEN = ;
byte EIGHT = ;
byte NINE = ;
byte MAX = ;

void setup() {     
  pinMode(8, OUTPUT);  
  pinMode(12, OUTPUT);
  pinMode(11, OUTPUT);
  Serial.begin(9600); 
}

void loop() {
  int analogueValue = analogRead(sensorPin);  
  
  analogueValue = map(analogueValue, 0, 1023, 0, 10);
  
  digitalWrite(latchPin, LOW);  
  
  if (analogueValue==0) SegDisplay=ZERO; // Min value
  if (analogueValue==1) SegDisplay=ONE;
  if (analogueValue==2) SegDisplay=TWO;    
  if (analogueValue==3) SegDisplay=THREE;    
  if (analogueValue==4) SegDisplay=FOUR;    
  if (analogueValue==5) SegDisplay=FIVE;    
  if (analogueValue==6) SegDisplay=SIX;    
  if (analogueValue==7) SegDisplay=SEVEN;    
  if (analogueValue==8) SegDisplay=EIGHT;    
  if (analogueValue==9) SegDisplay=NINE;    
  if (analogueValue>9) SegDisplay=MAX; // Max Value: illuminate Dot
  
  shiftOut(dataPin, clockPin, MSBFIRST, SegDisplay);  

  digitalWrite(latchPin, HIGH); //take the latch pin high so the LEDs will light up:

  // Print out the corresponding Shift Bit Register pin with it's value.
  Serial.print("analogueValue = ");
  Serial.println(analogueValue);
  Serial.print("SegDisplay = ");
  Serial.println(SegDisplay, BIN);
  
  delay(100); // Allow to settle
}