# Predictive Line
A forecasting or predictive line chart consists of a basic trend line for all data up until the current date/time, along with a forecast line showing predicted changes beyond the current date/time.
## The Method To Use
The method is `s.plt.predictive_line()`.
It must contain the following input variables:
```python
order: int
x: str
data: Union[str, DataFrame, List[Dict]]
```
Accepts the following input variables as optional:
```python
y: Optional[Union[List[str], str]]
min_value_mark: Optional[str]
max_value_mark: Optional[str]
color_mark: str
data: Union[List[str], DataFrame, List[Dict]]
x_axis_name: Optional[str]
y_axis_name: Optional[str]
title: Optional[str]
rows_size: Optional[int]
cols_size: Optional[int]
padding: Optional[List[int]]
show_values: Optional[List[str]]
option_modifications: Optional[Dict]
variant: Optional[str]
```
## Examples
### 1. Default Configuration
```python
data = [
{'date': dt.date(2021, 1, 1), 'x': 4, 'y': 5},
{'date': dt.date(2021, 1, 2), 'x': 7, 'y': 6},
{'date': dt.date(2021, 1, 3), 'x': 4, 'y': 7},
{'date': dt.date(2021, 1, 4), 'x': 9, 'y': 8},
{'date': dt.date(2021, 1, 5), 'x': 3, 'y': 9},
]
s.plt.predictive_line(
data=data, x='date', order=0,
min_value_mark=3, max_value_mark=4,
rows_size=2, cols_size=12,
)
```
### 2. Customization And Context
It is possible to personalize the **title** of the chart, **name** of each axis, the **legend, size** and add **padding.** One example could be obtained using:
```python
data = [
{'date': dt.date(2021, 1, 1), 'gas': 4, 'oil': 5},
{'date': dt.date(2021, 1, 2), 'gas': 7, 'oil': 6},
{'date': dt.date(2021, 1, 3), 'gas': 4, 'oil': 7},
{'date': dt.date(2021, 1, 4), 'gas': 9, 'oil': 5},
{'date': dt.date(2021, 1, 5), 'gas': 3, 'oil': 9},
{'date': dt.date(2021, 1, 6), 'gas': 6, 'oil': 5},
{'date': dt.date(2021, 1, 7), 'gas': 8, 'oil': 6},
]
s.plt.predictive_line(
data=data, x='date', order=0,
min_value_mark=3, max_value_mark=4,
rows_size=2, cols_size=12, padding='0,0,0,1',
title='Fossil price evolution - first days 2021.'
)
```
## Variants
By setting the parameter `variant` to the following values the appearance of the chart can be changed:
{% tabs %}
{% tab title="Clean" %}
variant = "clean"
{% endtab %}
{% tab title="Minimal" %}
variant = "minimal"
{% endtab %}
{% endtabs %}
##
{% hint style="info" %}
## Featured Content
[changing-the-menu-path](https://docs.shimoku.com/dev/building-web-app/menu/changing-the-menu-path "mention")\
The `menu_path` can be modified.
[using-the-grid](https://docs.shimoku.com/dev/building-web-app/grid/using-the-grid "mention")
It is possible to use any number of rows.
{% endhint %}
---
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