# How do you do a linear trend interpolation in Excel?

How do you do a linear trend interpolation in Excel? Fill in linear trend or growth trend values manually Select the cell where you want to start the series. On the Home tab, in the

## How do you do a linear trend interpolation in Excel?

Fill in linear trend or growth trend values manually

1. Select the cell where you want to start the series.
2. On the Home tab, in the Editing group, click Fill, and then click Series.
3. Do one of the following:
4. In the Step value box, enter the value that you want to increase the series by.

Does Excel do linear interpolation?

To perform linear interpolation in Excel, use the FORECAST function to interpolate between two pairs of x- and y-values directly. This simple method works when there are only two pairs of x- and y-values. If there are more than 2 pairs, the calculation is more complex.

### What is the formula to Roundup in excel?

Example

Formula Description (Result)
=ROUNDUP(76.9,0) Rounds 76.9 up to zero decimal places.
=ROUNDUP(3.14159, 3) Rounds 3.14159 up to three decimal places.
=ROUNDUP(-3.14159, 1) Rounds -3.14159 up to one decimal place.
=ROUNDUP(31415.92654, -2) Rounds 31415.92654 up to 2 decimal places to the left of the decimal point.

How do you find trending data in excel?

1. Select a chart.
2. Select the + to the top right of the chart.
3. Select Trendline. Note: Excel displays the Trendline option only if you select a chart that has more than one data series without selecting a data series.
4. In the Add Trendline dialog box, select any data series options you want, and click OK.

#### How do you calculate interpolation value in Excel?

To use it either:

1. Copy the formula above into Excel and replace KnownX and KnownY with the cell reference for the tabulated x and y values and NewX with the x-value to interpolate, OR.
2. Define names for the KnownX and KnownY ranges (Insert→Name→Define… in Excel 2003) and replace NewX with the x-value to interpolate.

How do you find trends in data in Excel?